With our heat pump ratings you can compare heat pumps side by side using our Head To Head tool.
You can compare 144 models from 65 brands in 13 categories such as warranty, efficiency, construction, availability, & where they are made.
You can also read the individual reviews of each brand below.
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These ratings are for air source, ducted central heat pump systems. Our simple rating
system gives each brand a color code and a star rating. If the card is green, then, that is one of the top picks from HvacRepairGuy. If the card is yellow, then, that would be a budget pick from HvacRepairGuy. If the card is red, then, the
brand is not recommended by HvacRepairGuy. With our heat pump reviews you can cut through the sales hype and find value. It really is like taking a repairman with you while you shop.
ACiQ
★ ★ ★ ☆ ☆
For the 2026 season, ACiQ has transitioned its central lineup to Low-GWP refrigerants (R454B/R32). These units are manufactured in Mexico and are frequently chosen by budget-conscious homeowners for their availability through direct-to-consumer channels. While they provide modern efficiency, they continue to use wire mesh coil guards which offer limited protection compared to louvered steel designs.
Heating Efficiency (HSPH)
ACiQ's 2026 efficiency ratings range from a standard 7.5 HSPH in the basic series to a highly efficient 9.5 HSPH in the Ultimate series. This range makes them suitable for a variety of climates, though they are most cost-effective in moderate regions.
Compressor Technology
The brand employs a tiered approach to technology: the Basic series uses reliable single-stage scrolls, the Premium series offers two-stage compressors for better humidity control, and the Ultimate HVH8 features inverter-driven variable speed technology for precise comfort.
Unit Replacement Warranty
ACiQ includes a 10-year Unit Replacement guarantee on their Premium and Ultimate models. If a compressor fails within the first decade, the entire outdoor unit is replaced. While a strong benefit, it lacks the longer 12-year or Lifetime terms offered by top-tier "cardgreen" brands.
Exterior Construction
Most ACiQ central units utilize a wire mesh guard to protect the condenser coil. While this design is excellent for airflow, it provides minimal defense against physical impacts such as hail or debris from lawnmowers.
ACiQ Model Comparison
Basic Series: R5H5S
Why choose it: An economical way to upgrade to the 2026 R454B refrigerant standard. It offers reliable, straightforward heating and cooling. Trade-offs: Higher noise levels and no unit replacement guarantee.
Premium Series: H4H7T
Why choose it: Provides two-stage operation for enhanced indoor comfort and includes a 10-year Unit Replacement guarantee for better long-term protection. Trade-offs: Lacks the ultra-quiet variable speed fan found in the Ultimate tier.
Ultimate Series: HVH8
Why choose it: Features a high-performance inverter compressor and a variable speed condenser fan, resulting in the quietest operation and highest efficiency in the lineup. Trade-offs: Higher upfront investment and requires compatible thermostats to utilize all five stages of operation.
Airease
★☆☆☆☆
For the 2026 season, Airease has transitioned its flagship Pro Series™ to the low-GWP R-454B refrigerant, aligning with new environmental standards. Proudly assembled in South Carolina, USA, Airease is positioned as a professional-tier brand within the Allied Air family. They are known for "ProBuilt™" reliability and specialized features like Quiet Shift™ technology. Despite their high-performance variable-speed offerings, Airease remains a 1-star rated brand in our database because their standard warranty is limited to parts and compressors, lacking the unit replacement guarantees found in higher-rated brands.
Heating Efficiency (HSPH)
The 2026 lineup is anchored by the A7CP21V, a high-efficiency "All-Climate" unit capable of up to 10 HSPF2 and reliable performance in temperatures as low as 5°F. The Basic A7HP14F model provides a standard 7.5 HSPF2, ensuring the brand covers both entry-level requirements and high-efficiency cold-climate needs.
Compressor Technology
Airease bypasses the traditional mid-tier two-stage category. Homeowners choose between the reliable single-stage scroll compressors in the Basic series or the advanced inverter-driven variable-capacity compressors in the Ultimate series. The variable-speed technology allows the system to modulate output precisely, improving both comfort and energy savings.
Unit Replacement Warranty
While Airease units are built with high standards, their warranty is a traditional 10-year limited parts and compressor package (registration required). They do not offer a "No-Hassle" or Unit Replacement warranty; if a major component fails, only the specific part is provided, not a complete new outdoor unit.
Exterior Construction (Louvered vs Wire)
Airease utilizes the Omniguard® Total Corrosion Protection system and heavy-duty cabinets. However, they favor a high-strength wire guard for coil protection rather than the full louvered steel panels common in some other premium brands, a design choice often aimed at maximizing airflow and serviceability.
Airease Model Comparison
Ultimate Series: A7CP21V
Why choose it: This "All-Climate" variable-speed unit is the pinnacle of the Airease line, offering up to 21 SEER2 and 10 HSPF2 for maximum efficiency and superior comfort in extreme weather. Trade-offs: Higher price point and requires the proprietary Comfort Sync® A3 thermostat to utilize its full modulation capabilities.
Basic Series: A7HP14F
Why choose it: A dependable, low-GWP single-stage heat pump that meets the 2026 minimum efficiency requirements. It features Quiet Shift™ technology to minimize noise during defrost cycles. Trade-offs: Fixed-speed operation is less efficient and provides less precise humidity control than variable-speed alternatives.
Aire-Flo
★ ☆ ☆ ☆ ☆
For the 2026 season, Aire-Flo remains the entry-level "value" brand within the Lennox International family (Allied Air). It is designed primarily for the new construction and budget-replacement markets. While the brand has transitioned to meet 2026 efficiency standards and regional refrigerant mandates, it maintains a lean feature set. It is a functional choice for mild climates where the primary goal is minimizing upfront equipment costs rather than maximizing long-term energy savings or high-end comfort features.
Heating Efficiency (HSPH)
The core Aire-Flo lineup, centered on the 4HP14L series, offers a standard heating efficiency of 8.2 HSPF (2026 ratings). This is considered a baseline "Standard Efficiency" rating—sufficient for meeting minimum regional requirements but falling short of the high-performance thresholds seen in premium inverter-driven systems.
Compressor Technology
Aire-Flo utilizes reliable single-stage scroll compressors. Unlike two-stage or variable-capacity units, these compressors operate at 100% capacity whenever they are running. This results in more frequent cycling and less precise temperature control compared to higher-tier brands, but with the benefit of mechanical simplicity and lower repair costs.
Unit Replacement Warranty
Aire-Flo offers a standard 10-year parts and compressor warranty (requires registration). However, it offers no Unit Replacement guarantee. If a major component like the compressor or coil fails, the warranty covers the part only, not the labor or a full replacement of the outdoor unit, placing it firmly in the 1-star category for warranty protection.
Exterior Construction (Louvered vs Wire)
One notable highlight of the Aire-Flo design is the use of heavy-gauge, pre-painted steel louvered panels. This provides significantly better protection for the sensitive aluminum fins of the condenser coil against hail, lawn equipment, and debris compared to the open-wire guards often found on other budget-tier units.
Aire-Flo Model Comparison
Basic Series: 4HP14L
Why choose it: An affordable, reliable solution for homeowners or builders who need a basic heat pump with professional-grade coil protection via louvered panels. Trade-offs: Limited to single-stage performance, lacks a sound blanket for quiet operation, and offers no unit replacement warranty.
Aireforce
★ ☆ ☆ ☆ ☆
For the 2026 season, Aireforce has updated its lineup to meet new environmental standards using R454B refrigerant. As a private label brand for the BLUE HAWK buying group, these units are manufactured by Nortek Global HVAC. While they offer a solid entry-level choice for budget-conscious homeowners, they lack the high-end inverter technology and extensive replacement warranties found in premium national brands.
Heating Efficiency (HSPH)
The Aireforce 2026 lineup offers standard efficiency levels. The FSH4BE base model delivers a 7.5 HSPH2 rating, while the FSH4BF series steps up slightly to 7.8 HSPH2. These ratings are sufficient for mild to moderate climates but may result in higher operating costs in extreme northern winters compared to high-efficiency alternatives.
Compressor Technology
Aireforce utilizes reliable Copeland Scroll technology. The FSH4BE is a traditional single-stage unit, while the FSH4BF "Brilliance" series features two-stage operation for improved humidity control and quieter performance. Both models are built for durability, though they do not currently offer a fully modulating variable-speed central ducted option.
Unit Replacement Warranty
The brand provides a standard 10-year parts and compressor warranty upon registration. However, the "Quality Pledge" only provides a 1-year unit replacement guarantee if the compressor fails. Because this falls significantly short of the 10-year or lifetime replacement options offered by competitors, Aireforce receives a 1-star rating in this category.
Exterior Construction (Louvered vs Wire)
A notable advantage of the FSH series is the heavy-duty louvered steel cabinet. This construction is superior to wire-frame guards as it provides physical protection for the aluminum fins against hail, lawn debris, and pets. All units are finished with a salt-spray tested, corrosion-resistant powder coating.
Aireforce Model Comparison
Basic Series: FSH4BE
Why choose it: An affordable, straightforward R454B solution with a rugged louvered jacket and a dependable single-stage scroll compressor. Trade-offs: Standard 1-year unit replacement pledge and no advanced sound reduction features.
Premium Series: FSH4BF
Why choose it: Includes a two-stage compressor for better efficiency and a factory-installed sound blanket for quieter operation. Trade-offs: Still limited to a 1-year unit replacement warranty and lacks a variable-speed condenser fan.
Airtemp
★ ☆ ☆ ☆ ☆
Airtemp continues to position itself as a value-driven brand for the 2026 season, primarily catering to homeowners seeking straightforward, budget-conscious HVAC solutions. While they have successfully transitioned their core lineup to meet 2026 SEER2 and Low-GWP refrigerant requirements, the brand maintains a limited product depth compared to premium competitors. Airtemp is an ideal choice for property managers or those prioritizing low upfront costs over high-end performance features or long-term replacement guarantees.
Heating Efficiency (HSPH)
Airtemp's ducted heat pump lineup for 2026 focuses on meeting federal minimums. The entry-level VSH3BE series delivers a standard 7.5 HSPH2, while the VSH1BF series reaches up to 9.0 HSPH in specific matches. These ratings are suitable for southern and moderate climates but lack the advanced vapor-injection technology required for high-efficiency heating in extreme cold zones.
Compressor Technology
Airtemp relies heavily on proven scroll compressor technology. The "Basic" tier utilizes reliable single-stage compressors, while the "Premium" VSH1BF series steps up to two-stage operation in its larger 5-ton capacity models. This provides a balance of simplicity and improved load matching for larger homes, though the brand does not currently offer a variable-speed "Ultimate" ducted central model.
Unit Replacement Warranty
Airtemp provides a "1-Year Replacement Pledge." If the compressor or major component fails within the first year of ownership, the brand will replace the entire outdoor unit. While this protects against "lemons" out of the box, it is significantly less robust than the 10-year or lifetime replacement guarantees found in 3-to-5-star brands, leading to its 1-star rating.
Exterior Construction (Louvered vs Wire)
Construction remains a strong suit for Airtemp's durability. The units feature galvanized steel cabinets with a 1.5 mil polyester urethane finish that excels in salt spray tests. Most models utilize a full metal wrapper (louvered) design, which offers superior protection for the Micro-Channel coils against hail, lawnmowers, and debris compared to open wire grilles.
Airtemp Model Comparison
Basic Series: VSH3BE
Why choose it: Excellent for those on a strict budget or for rental properties. It meets all 2026 efficiency mandates and features a durable louvered cabinet and a composite base pan to reduce rust and vibration noise.
Trade-offs: Features single-stage operation only, which can lead to more frequent cycling and less precise humidity control during the summer months.
Premium Series: VSH1BF
Why choose it: A step up in efficiency (up to 9.0 HSPH) that includes a factory-installed compressor sound blanket. The 5-ton model utilizes a two-stage compressor for better efficiency during mild weather.
Trade-offs: Still lacks a variable-speed option for the "Ultimate" category, and the 1-year replacement pledge remains standard across the entire lineup.
Allied
★ ☆ ☆ ☆ ☆
For the 2026 season, Allied has updated its core offerings to comply with low-GWP R-454B refrigerant standards. The brand's 2026 strategy focuses on a direct transition from entry-level single-stage performance to high-efficiency variable-speed technology via the Pro Series. While Allied units provide professional-grade durability and "Omniguard" protection, the brand remains in our 1-star category because their warranty does not include the unit replacement coverage that has become a benchmark for premium consumer protection.
Heating Efficiency (HSPH)
Allied’s 2026 lineup offers reliable heating capabilities, with the flagship Pro Series reaching an 8.5 HSPF2 rating. This provides high efficiency for most climates, though it falls short of the extreme-efficiency ratings found in some specialized cold-climate competitors.
Compressor Technology
Allied has moved away from two-stage options for 2026, choosing instead to offer either simple single-stage scroll compressors or advanced variable-speed inverter technology. The variable-speed systems provide superior comfort by modulating their output to match the home's exact needs, resulting in more consistent temperatures and quieter operation.
Unit Replacement Warranty
The primary drawback for Allied is its conservative warranty. While they provide a solid 10-year parts and compressor warranty upon registration, they do not offer a "Unit Replacement" guarantee. If a compressor fails during the warranty period, only the part is replaced, rather than the entire outdoor unit.
Exterior Construction
Allied continues to prioritize physical durability with heavy-duty louvered steel cabinet panels. This "Omniguard" construction provides superior protection for the condenser coils against environmental hazards like hail and lawn debris compared to the open-wire guards used by many budget brands.
Allied Model Comparison
Basic Series: 4HP17L
Why choose it: A durable, single-stage entry point for the 2026 refrigerant standards, featuring a reliable scroll compressor and full louvered protection. Trade-offs: Fixed-speed operation is less efficient and louder than modulating alternatives, with no unit replacement protection.
Ultimate Series: 7HP19V
Why choose it: The top-tier 2026 choice for Allied, featuring full variable-speed control for both the compressor and the fan. It offers the quietest operation and highest efficiency levels in the brand's catalog. Trade-offs: Higher initial cost and limited by the same 10-year standard warranty as the base models.
Amana
★ ★ ★ ★ ★
Amana has successfully pivoted its 2026 lineup to address the low-GWP refrigerant transition using R-32. The brand continues to differentiate itself through industry-leading warranty terms, offering a blend of traditional high-durability vertical discharge units and ultra-efficient, space-saving side discharge technology. As a member of the Daikin group, Amana systems leverage global inverter innovation while maintaining their "Assembled in the USA" heritage at the Daikin Texas Technology Park.
Heating Efficiency (HSPH)
Amana’s 2026 fleet is engineered for high performance under the HSPF2 standard. The Basic ALZS5B and Premium ALZT7C provide solid efficiency for temperate climates, while the flagship AZV9S S-Series achieves a top-tier 10.0 HSPF2. This high-efficiency rating makes the S-Series an ideal candidate for cold-climate regions where maintaining heating capacity at low ambient temperatures is critical.
Compressor Technology
The 2026 lineup offers three distinct mechanical tiers: the Basic series utilizes a reliable single-stage scroll; the Premium ALZT7C moves to a Two-Stage Ultra-Tech compressor for enhanced humidity control; and the Ultimate AZV9S utilizes a sophisticated variable-speed inverter. The inverter technology allows the system to modulate its output precisely, matching the home's real-time demand and eliminating energy-wasting cycles.
Unit Replacement Warranty
Amana remains the market leader in consumer protection. The Premium ALZT7C features a 10-year Unit Replacement guarantee, while the Ultimate AZV9S is backed by a Lifetime Unit Replacement guarantee. Under these terms, if the compressor fails during the coverage period for the original registered owner, Amana provides a complete new outdoor unit rather than just a replacement part.
Exterior Construction (Louvered vs Wire)
Amana continues to use heavy-gauge galvanized steel louvered coil panels on its traditional vertical discharge models (ALZS5B and ALZT7C), providing the best protection against hail and debris. However, the Ultimate AZV9S S-Series features a modern side-discharge "slim" chassis; this design foregoes traditional louvers in favor of a compact footprint and specialized "Blue Fin" anti-corrosion coil coating to ensure long-term durability in a different form factor.
Amana Model Comparison
Basic Series: ALZS5B
Why choose it: A reliable, entry-level R-32 system that features a traditional louvered steel cabinet for maximum physical coil protection. Trade-offs: Does not include a Unit Replacement warranty and features the lowest heating efficiency (7.8 HSPF2) in the brand's 2026 catalog.
Premium Series: ALZT7C
Why choose it: The ideal choice for homeowners wanting a traditional two-stage system. It offers a 10-year Unit Replacement warranty and is equipped with ComfortBridge™ technology for simplified smart home integration. Trade-offs: The vertical discharge "cube" design requires a larger footprint and more clearance than side-discharge alternatives.
Ultimate Series: AZV9S S-Series
Why choose it: Amana’s most advanced 2026 model, featuring a slim side-discharge design, whisper-quiet inverter operation, and a Lifetime Unit Replacement guarantee. Trade-offs: Higher initial cost and lacks the traditional louvered panel construction of the vertical units, though it compensates with specialized coil coatings.
American Standard
★★☆☆☆
American Standard enters the 2026 season with a focus on its transition to R-454B refrigerant, maintaining its reputation for high-build quality and technical reliability. While the brand is often cited for its legendary Spine Fin™ coils and Duration™ compressors, its 2026 market position is challenged by conservative warranty structures. Despite being a premium brand in terms of engineering and "dealer-only" exclusivity, the lack of a unit replacement guarantee keeps its star rating lower than competitors who offer more aggressive consumer protections.
Heating Efficiency (HSPH)
For 2026, American Standard offers balanced heating efficiency. While the Platinum series reaches up to 10.5 HSPH2, the workhorse Gold 16 series sits at a standard 8.1 HSPH2, making the top-tier variable speed units the clear choice for cold-climate performance.
Compressor Technology
The lineup moves from single-stage reliability in the Silver tier to the highly-regarded two-stage Duration™ compressor in the Gold 16. The Ultimate tier utilizes AccuComfort™ variable-speed technology, which modulates capacity to maintain precise temperature and humidity levels.
Unit Replacement Warranty
As per the 2026 audit, American Standard does not currently offer a "No-Hassle" or "Unit Replacement" guarantee for its heat pump line. While the Platinum series offers an extended 12-year compressor warranty, the absence of a full unit replacement clause results in a 2-star rating under the current criteria.
Exterior Construction
Construction remains a brand strength. American Standard units feature louvered steel cabinets and the proprietary all-aluminum Spine Fin™ coil, which offers a significantly higher surface area for heat transfer and better resistance to environmental corrosion than standard plate-fin designs.
American Standard Model Comparison
Basic Series: Silver 15
Why choose it: Durable entry-level performance featuring the same louvered protection and Spine Fin™ coil as the higher tiers. Trade-offs: Single-stage operation means it is either 100% on or off, leading to less precise humidity control.
Premium Series: Gold 16
Why choose it: Offers two-stage heating and cooling, which allows the unit to run at 70% capacity most of the time for improved comfort and lower noise. Trade-offs: HSPH2 rating of 8.1 is modest for a premium-labeled model in 2026.
Ultimate Series: Platinum 20
Why choose it: True variable-speed performance and AccuLink™ communicating technology for the highest level of home comfort and efficiency. Trade-offs: Significant upfront cost and limited by a warranty that lacks a unit replacement guarantee.
Ameristar
★☆☆☆☆
Ameristar has updated its lineup for 2026 to include the A5HP5 series, facilitating a full transition to R-454B refrigerant to meet new environmental regulations while maintaining its position as a budget-friendly value brand.
Heating Efficiency (HSPH)
The A5HP5 series delivers a standard efficiency rating of 8.1 HSPF2. While this meets regional minimum requirements, it is designed for moderate climates rather than extreme cold-weather performance.
Compressor Technology
This model features a reliable single-stage scroll compressor. It operates at 100% capacity whenever it is running, providing a straightforward mechanical design that is easier and less expensive to service than complex variable-speed systems.
Unit Replacement Warranty
As a value-tier brand, Ameristar offers a standard 10-year parts warranty but does not include a unit replacement "no-hassle" pledge. If the compressor fails, only the component is replaced, not the entire outdoor unit.
Exterior Construction
The unit utilizes a stamped/slotted steel cabinet or wire mesh guard rather than a premium wrap-around louvered design. This provides standard protection while keeping the entry-level price point low.
Ameristar Model Comparison
Basic Series: A5HP5
Why choose it: It is one of the most affordable ways to install a brand-new, Low-GWP compliant system backed by the engineering resources of Trane Technologies. Trade-offs: Higher operational noise levels and lower efficiency ratings compared to premium multi-stage units.
Arcoaire
★★★★☆
Arcoaire, part of the International Comfort Products (ICP) family under Carrier, has successfully transitioned its ducted lineup to R-454B (Puron Advance) for 2026. This brand is a top-tier choice for homeowners seeking a "No Hassle Replacement" warranty that provides a new outdoor unit in the event of a major failure. The 2026 catalog distinguishes itself by offering multiple variable-speed "Ultimate" models, including the ultra-high efficiency Ion 23, providing professional-grade performance through a specialized dealer network.
Heating Efficiency (HSPH)
Arcoaire’s 2026 R-454B heat pumps are highly efficient, with the flagship Ion 23 (H5H3V) reaching an industry-leading 12.0 HSPF2. The Ion 20 (H5H0V) follows with 9.5 HSPF2, while the mid-range two-stage models achieve 8.5 HSPF2. Even the budget-friendly Performance series meets Energy Star requirements on select sizes with a standard 7.8 HSPF2.
Compressor Technology
The 2026 lineup features three performance tiers. The Ultimate category consists of the Ion 23 and Ion 20, both utilizing inverter-driven variable-speed compressors with SmartSense™ technology to modulate between 20% and 100% capacity. The Premium category features the Ion 18, which uses a reliable two-stage scroll compressor. The Basic series relies on a dependable single-stage scroll compressor.
Unit Replacement Warranty
Arcoaire’s "No Hassle Replacement" limited warranty is a significant market differentiator. On all Ion series models (including the variable-speed and two-stage units), the manufacturer provides a one-time replacement of the entire outdoor unit if the compressor or coil fails within the first 10 years. The Performance series excludes this benefit, carrying a standard 10-year parts warranty with registration.
Exterior Construction
The 2026 units feature a durable, high-gloss baked-on powder coat finish over galvanized steel. For protection, they utilize a high-density wire hail guard grille with protective corner posts rather than traditional louvered panels. This design provides robust protection against debris while allowing for significantly easier coil cleaning and maintenance.
Arcoaire Model Comparison
Ultimate Series: Ion 23 (H5H3V)
Why choose it: This is the brand's most advanced variable-speed system, reaching up to 12.0 HSPF2 and operating at whisper-quiet levels as low as 55 dB. It offers the maximum 10-year No Hassle Replacement pledge and superior heating in cold climates.
Trade-offs: Highest initial cost and requires the Ion System Control communicating thermostat to access its full range of modulation.
Premium Series: Ion 18 (H5H8T)
Why choose it: A high-performance two-stage model that balances efficiency (8.5 HSPF2) and comfort. It still qualifies for the full 10-year No Hassle Replacement warranty and uses a variable-speed fan motor for improved airflow management.
Trade-offs: Lacks the ultra-precise modulation of the variable-speed Ultimate models, resulting in slightly larger temperature swings.
Basic Series: Performance 16 (N5H5S)
Why choose it: A simple, single-stage workhorse using R-454B. It is budget-friendly, easy for technicians to service, and compatible with most standard 24v thermostats.
Trade-offs: Does not include the "No Hassle" unit replacement pledge and has a louder operating sound level of 70 dB.
Armstrong Air
★★☆☆☆
Arcoaire, part of the International Comfort Products (ICP) family under Carrier, has successfully transitioned its ducted lineup to R-454B (Puron Advance) for 2026. This brand is a top-tier choice for homeowners seeking a "No Hassle Replacement" warranty that provides a new outdoor unit in the event of a major failure. The 2026 catalog distinguishes itself by offering multiple variable-speed "Ultimate" models, including the ultra-high efficiency Ion 23, providing professional-grade performance through a specialized dealer network.
Heating Efficiency (HSPH)
Armstrong Air’s 2026 R-454B lineup offers reliable heating performance, with the flagship A7HP19V reaching a high 9.5 HSPF2 efficiency rating. The entry-level A7HP14F meets standard 2026 mandates with an 8.2 HSPF2. These ratings provide solid operational savings, though they sit below the industry-leading efficiency peaks of some competing ICP-family brands.
Compressor Technology
The 2026 lineup features two primary performance tiers. The Ultimate category consists of the Pro Series™ A7HP19V, which utilizes a true inverter-driven variable-speed compressor for precise modulation. The Basic series relies on the A7HP14F, a dependable single-stage scroll compressor. Notably, the brand does not offer a model that qualifies for the HvacRepairGuy premium category as it lacks a traditional two-stage R-454B model.
Unit Replacement Warranty
Unlike the Arcoaire brand which offers "No Hassle Replacement," Armstrong Air maintains a more conservative 10-year parts and compressor warranty (registration required). They do not offer a unit replacement pledge; if a compressor fails, only the part is provided, which results in a lower 2-star rating compared to brands with full unit replacement terms.
Exterior Construction
Construction is a highlight for the brand, utilizing heavy-duty galvanized steel with a louvered panel design. This construction provides superior physical protection for the condenser coils against hail, lawn equipment, and debris. All units feature the Omniguard® Total Corrosion Protection system to extend the life of the aluminum fins.
Armstrong Air Model Comparison
Ultimate Series: Pro Series™ A7HP19V
Why choose it: This is the brand's most advanced inverter system, offering smooth temperature ramps and quiet operation via its variable-speed compressor. It is ideal for homeowners seeking the highest comfort levels available in the Armstrong lineup.
Trade-offs: Higher upfront investment and lacks a unit replacement guarantee despite its "Pro Series" designation.
Basic Series: A7HP14F
Why choose it: A rugged and affordable single-stage workhorse utilizing R-454B. It features the same high-quality louvered cabinet protection as the premium models and is easy for technicians to service.
Trade-offs: Fixed-speed operation results in more frequent cycling and lacks the "Ultimate" series' ability to fine-tune humidity and temperature.
Bosch
★★☆☆☆
For the 2026 season, Bosch has updated its Inverter Ducted Split (IDS) family to utilize Low-GWP refrigerants (R-454B), maintaining its reputation for high-efficiency inverter technology in a non-communicating platform. While Bosch is a pioneer in making variable-speed technology accessible for replacement applications, they remain a 2-star brand in our audit because they do not offer a "No-Hassle" Unit Replacement pledge. Their warranty is a standard parts-only 10-year term, which lags behind the replacement guarantees offered by competitors at similar price points.
Heating Efficiency (HSPH)
Bosch units are strong performers in heating, with the 2026 IDS Premium models reaching up to 10.5 HSPF2. Even the IDS Light series provides a robust 9.0 HSPF2, making the entire lineup a viable option for homeowners looking to reduce energy consumption in colder climates.
Compressor Technology
Bosch exclusively utilizes inverter-driven variable speed compressors across their entire 2026 ducted lineup. By modulating the compressor speed, these units can match the heating or cooling load of the home precisely. Notably, they lack a "Premium" two-stage offering, as Bosch skips traditional stepped capacity in favor of full inverter modulation.
Unit Replacement Warranty
Bosch provides a solid 10-year limited warranty on the compressor and functional parts (registration required). However, they earned a lower star rating because they do not include a Unit Replacement warranty. If a compressor fails, Bosch provides the replacement part, but they do not provide a completely new outdoor unit as seen in "cardgreen" or "cardyellow" brands.
Exterior Construction
Bosch units feature a compact, vertical-discharge design with a wire coil guard. While the high-quality powder-coat finish is durable, the wire mesh provides significantly less protection against physical impacts like hail or lawnmower-thrown debris compared to heavy-duty louvered steel cabinets.
Bosch Model Comparison
Ultimate Series: IDS Premium (BOVA-60)
Why choose it: Offers the highest efficiency and best humidity control in the Bosch lineup, featuring a variable-speed fan motor and a sound-dampening compressor blanket for whisper-quiet operation. Trade-offs: The highest upfront cost in the brand and lacks a unit replacement guarantee despite the "Ultimate" label.
Basic Series: IDS Light (BOVA-36)
Why choose it: Provides the comfort of variable-speed inverter technology at a price point closer to many competitors' single-stage models. Trade-offs: Uses a standard PSC fan motor rather than the more efficient ECM fan, leading to slightly higher noise levels and lower overall SEER2 ratings.
Broan
★ ★ ★ ☆ ☆
For the 2026 season, Broan has successfully transitioned its ducted lineup to Low-GWP refrigerants like R-454B. Following Rheem Manufacturing's acquisition of Nortek Global HVAC (formerly Nordyne) in late 2024, these units are now part of the Rheem family and continue to be manufactured in Saltillo, Mexico. Broan remains a reliable choice for homeowners seeking robust construction and the "Comfort Pledge" warranty, which provides for a full unit replacement in the event of a compressor failure. While a strong value proposition, it earns a 3-star rating as its replacement terms do not reach the 12-year or lifetime durations found in top-tier brands.
Heating Efficiency (HSPH)
Broan's 2026 heat pumps deliver solid efficiency across all performance tiers. The Basic FSH1BE series starts at a respectable 8.5 HSPF2, while the Ultimate FSH1BG inverter-driven models reach up to 10 HSPF2, providing high-performance heating capable of maintaining comfort even as outdoor temperatures drop.
Compressor Technology
The brand utilizes a clear three-tier technology path for the 2026 audit. The Basic series employs reliable single-stage scroll compressors. The Premium FSH1BF series steps up to two-stage technology with Coresense™ diagnostics for improved humidity control and efficiency. The Ultimate FSH1BG series features advanced inverter-driven variable-speed technology, allowing the system to modulate capacity precisely to match the home's real-time demand.
Unit Replacement Warranty
Broan qualifies for a 3-star rating by including a 10-year "Comfort Pledge" on registered equipment. If the compressor fails within the first 10 years, the manufacturer replaces the entire outdoor unit rather than just the failed part. While this offers significant peace of mind, it falls short of the "Ultimate" tier's 12-year or lifetime requirements.
Exterior Construction
A hallmark of the Broan design is its exterior durability. All 2026 models feature heavy-duty louvered steel panels that provide superior physical protection for the condenser coil against hail and lawn debris. Additionally, the use of all-aluminum coils helps prevent formicary corrosion, ensuring long-term reliability in various environments.
Broan Model Comparison
Ultimate Series: FSH1BG (Inverter)
Why choose it: Features industry-leading inverter technology for ultra-quiet operation and the highest efficiency in the Broan lineup. It can communicate with the rest of the home's HVAC system to maximize comfort and energy savings. Trade-offs: Higher initial cost and requires a compatible communicating thermostat to utilize its full modulation range.
Premium Series: FSH1BF (Two-Stage)
Why choose it: Provides a middle ground with two stages of operation, allowing the unit to run at lower speeds during mild weather for quieter performance and better dehumidification. Includes a factory-installed compressor sound blanket. Trade-offs: Not as quiet or efficient as the variable-speed Ultimate models.
Basic Series: FSH1BE (Single-Stage)
Why choose it: An affordable, reliable solution for the 2026 refrigerant standards that features a swept-wing fan blade for enhanced sound control and a durable louvered jacket. Trade-offs: Fixed-speed operation results in more frequent cycling and less precise temperature control compared to multi-stage units.
Brock
★★☆☆☆
For the 2026 season, Brock has updated its ducted lineup to comply with the low-GWP transition, utilizing R-454B refrigerant. Headquartered in Canada and serving the North American market, Brock positions itself as a sturdy, mid-market choice. While the equipment is built for reliability, the brand maintains a 2-star rating because its standard 2026 warranty package lacks the "No-Hassle" unit replacement guarantees that have become the benchmark for higher-rated brands in our database.
Heating Efficiency (HSPH)
Brock’s 2026 heat pumps deliver a steady heating efficiency, with most models in the Basic and Premium series reaching an HSPF2 of 8.2. While reliable for standard installations, they lack the high-efficiency cold-climate ratings found in inverter-driven systems from competing brands.
Compressor Technology
Brock utilizes a focused technology tiering for 2026. The Basic series features reliable single-stage scroll compressors, while the Premium series employs two-stage technology to provide better indoor temperature stability and improved humidity control during the cooling season. At this time, the brand does not offer a variable-speed inverter model for the Ultimate tier.
Unit Replacement Warranty
Brock provides a standard 10-year parts and compressor warranty upon registration. However, they do not offer a Unit Replacement pledge. If a compressor or coil fails, the warranty covers only the replacement part itself; it does not provide a complete new outdoor unit, which limits their rating compared to brands with "No-Hassle" terms.
Exterior Construction
The 2026 Brock units are housed in heavy-duty galvanized steel cabinets with a professional-grade powder coat finish. They utilize a high-density wire guard system to protect the condenser coils. This design favors maximum airflow and easy maintenance (cleaning) but provides less defense against hail and side impacts than full louvered steel panels.
Brock Model Comparison
Premium Series: BROPH16NB
Why choose it: The two-stage compressor allows the unit to run at a lower capacity during milder weather, increasing comfort and reducing energy consumption. Trade-offs: Does not include a factory-installed sound blanket, making it louder than premium models from other manufacturers.
Basic Series: BROPH14NB
Why choose it: A straightforward and cost-effective solution for homeowners moving to the R-454B standard. It offers reliable single-stage operation that is easy for any technician to service. Trade-offs: Fixed-speed operation can lead to more noticeable temperature swings and higher noise levels during startup.
Bryant
★★★★☆
Bryant has standardized its 2026 lineup for the R-454B (Puron Advance™) transition, maintaining broad availability across the USA and Canada. The brand is highly regarded for its robust construction and the "Red Shield" unit replacement warranty on its top-tier Evolution models. However, the 4-star rating reflects the exclusion of this premium replacement protection from the Preferred and Legacy tiers, which only receive standard parts coverage.
Heating Efficiency (HSPH)
The 2026 lineup is led by the Evolution™ Extreme 23, achieving a high 10.5 HSPF2 rating. The Preferred™ Series (248TAN) offers a competitive 8.5 HSPF2 for mid-tier applications, while the Legacy™ Line (235SAN) provides a solid 8.1 HSPF2. All models are designed to meet current North American efficiency standards while utilizing lower-GWP refrigerants.
Compressor Technology
Bryant’s 2026 models are clearly segmented by technology: the Ultimate tier features a fully variable-speed inverter for maximum precision. The Premium Preferred™ (248TAN) utilizes a two-stage scroll compressor, offering superior humidity control and consistent temperatures. The Basic Legacy™ (235SAN) employs a dependable single-stage scroll compressor for cost-effective reliability.
Unit Replacement Warranty
Bryant’s 4-star rating is anchored by the Red Shield™ 10-year Unit Replacement Limited Warranty. This provides a one-time replacement of the entire outdoor unit if the compressor fails within 10 years (registration required). This high-level protection is exclusive to the Evolution series; the Preferred and Legacy lines carry a standard 10-year parts-only warranty.
Exterior Construction
The Evolution and Preferred models feature the DuraGuard™ Plus system, which uses heavy-gauge louvered steel panels to protect the condensing coil from hail and debris. The Legacy series utilizes the standard DuraGuard system with a dense wire coil guard, offering basic protection while keeping the initial cost lower for budget-conscious homeowners.
Bryant Model Comparison
Ultimate Series: Evolution™ Extreme 23 (293VAN)
Why choose it: This flagship variable-speed model is the premier choice for the R-454B era, offering ultra-quiet operation and the 10-year Red Shield unit replacement warranty. Trade-offs: Higher upfront cost and requires the Evolution™ Connex™ control and professional dealer installation.
Premium Series: Preferred™ Series (248TAN)
Why choose it: A high-performance two-stage system that offers excellent dehumidification and the superior louvered DuraGuard™ Plus cabinet. It strikes a balance between advanced comfort and affordability. Trade-offs: Does not include the unit replacement warranty; limited to standard 10-year parts coverage.
Basic Series: Legacy™ Line (235SAN)
Why choose it: Bryant's most affordable R-454B model, featuring a simple single-stage design that is easy to service and maintain. It remains a reliable choice for standard heating and cooling needs. Trade-offs: Uses a wire guard instead of louvered panels and lacks the two-stage or variable-speed comfort benefits.
Carrier
★ ★ ★ ★ ☆
For the 2026 season, Carrier has fully transitioned its primary residential lineup to Puron Advance™ (R-454B). The brand maintains a strong 4-star rating due to its technological leadership and the robust 10-year Unit Replacement pledge offered on the Infinity series. While manufacturing remains heavily centered in the USA for high-tier models like the Infinity 23 and Performance 18, the entry-level Comfort 16 is manufactured in Monterrey, Mexico, and utilizes a more basic wire-grille protection system rather than heavy-duty louvered panels.
HSPF2 Efficiency
Carrier's 2026 performance is headlined by the Infinity 23, achieving up to 9.5 HSPF2. The Performance 18 and Comfort 16 provide reliable heating efficiency ranging from 8.1 to 8.5 HSPF2, ensuring compliance with the latest North American energy standards.
Compressor Tech
The lineup follows a strict hierarchy: the Infinity 23 uses a variable-speed inverter for precise 25-100% capacity modulation, the Performance 18 uses a two-stage scroll compressor for humidity control, and the Comfort 16 relies on a dependable single-stage scroll.
Warranty
All 2026 models include a 10-year parts and compressor warranty upon registration. The "Red Shield" 10-year Unit Replacement guarantee is reserved for the Infinity tier, ensuring a complete outdoor unit exchange if the compressor fails within the first decade.
Construction
Durability varies by model; the Infinity and Performance units feature WeatherArmor™ Ultra louvered steel panels. In contrast, the Comfort 16 (27SCA5) uses a high-density wire grille to protect the coil, prioritizing maximum airflow and lower manufacturing costs.
Ultimate Tier: Infinity 23 (27VNA3)
Manufactured: USA. The flagship R-454B variable-speed system featuring Greenspeed® Intelligence. It adapts in 1% increments to maintain perfect temperature and humidity. It is the only 2026 model in this review with the 10-year Unit Replacement warranty.
Premium Tier: Performance 18 (27TPA8)
Manufactured: USA. A high-performance two-stage heat pump that offers a significant comfort upgrade over standard units. It includes InteliSense™ technology for advanced dealer diagnostics and features the superior protection of a louvered cabinet.
Basic Tier: Comfort 16 (27SCA5)
Manufactured: Mexico. A reliable and economical 2026 entry point. While it delivers the same 10-year parts warranty as higher tiers, it lacks the unit replacement pledge and utilizes a wire grille coil guard rather than the premium louvered panels.
Century
★ ★ ☆ ☆ ☆
For 2026, Century (a MARS brand) has standardized its ducted lineup with R-454B refrigerant, headlined by the HP19V inverter system. While Century offers high-performance technology in its Ultimate tier and an impressive 12-year parts warranty upon registration, the brand lacks a "Unit Replacement" or "No-Hassle" pledge. Because they do not provide a full-unit replacement guarantee in the event of a major component failure, Century remains a 2-star rated brand focused on value and specific installation footprints.
Heating Efficiency (HSPF2)
The 2026 Century lineup offers a broad efficiency range tailored for different climates. The HP19V series delivers up to 9.0 HSPF2, making it a strong performer in cold climates with heating operation down to -5°F. The Basic HSA14 series provides a standard 7.8 HSPF2, meeting federal minimums and serving as a reliable choice for budget-conscious homeowners in moderate regions.
Compressor Technology
Century utilizes two distinct compressor platforms for its 2026 R-454B models. The Ultimate HP19V uses an inverter-driven rotary compressor that fully modulates its speed to match the home's heating load, ensuring precise temperature stability. The Basic HSA14 series relies on a traditional single-stage scroll compressor, designed for simple, full-capacity operation and ease of service.
Warranty & Unit Replacement
Century offers a competitive 12-year limited parts and compressor warranty for its residential units when registered within 60 days of purchase. However, it is important to note that Century does not offer a "Unit Replacement" pledge. If a compressor or coil fails within the warranty period, the manufacturer provides the replacement component only, rather than replacing the entire outdoor unit as seen with higher-rated brands.
Construction & Footprint
The HP19V is notable for its compact, side-discharge design, which features a footprint under 4 square feet and a height under 34 inches, making it ideal for zero-lot-line installations. Both the HP19V and HSA14 series feature heavy-duty louvered steel panels to protect the coils from external damage and are finished with a durable powder-coat paint for long-term protection in USA and Canada environments.
Century Model Comparison
Ultimate Tier: HP19V Series
Why choose it: The HP19V is an inverter-driven model that offers high efficiency (19 SEER2 / 9.0 HSPF2) and extreme weather performance. Trade-offs: Higher initial investment and lacks a unit replacement warranty despite its premium performance specifications.
Basic Tier: HSA14 Series
Why choose it: This is Century’s workhorse single-stage heat pump for the R-454B era. It features a traditional vertical discharge and louvered coil protection, offering a reliable and familiar design for standard residential replacements. Trade-offs: Lower efficiency than the HP19V and lacks the quiet, modulating comfort of variable-speed technology.
Champion
★ ★ ★ ★ ☆
As of late 2025, Champion has transitioned into the Bosch Home Comfort Group following Bosch’s acquisition of the JCI residential HVAC business. This moves Champion into a global "house of brands" while maintaining its core American production plants. For 2026, the brand remains a value leader, providing a rare Lifetime Compressor Limited Warranty on Momentum™ series models even as it transitions the entire ducted lineup to R-454B refrigerant.
HSPF2 & Efficiency
The 2026 Momentum™ HL20 achieves an impressive 9.0 HSPF2, making it one of the most efficient American-made ducted systems for cold-climate heating.
Compressor Tech
Utilizes Inverter-driven variable capacity compressors in the Ultimate tier and high-reliability Two-Stage Scroll compressors for the Premium tier models.
Warranty
Champion offers a standard 10-year parts warranty, but the Momentum™ series stands out with its Lifetime Compressor Limited Warranty for original residential owners.
Construction
Champion units utilize stamped slotted panels for coil protection and are finished with a 1,000-hour salt-spray rated powder paint for enhanced corrosion resistance.
The flagship 2026 system featuring modulating inverter performance. It includes the ShadowDrive™ sound reduction system and is fully compatible with Hx™3 communicating controls.
Premium Tier: Momentum™ HL19 (Two-Stage)
A balanced high-efficiency two-stage model. It provides superior humidity control and qualifies for the Lifetime Compressor Warranty, offering long-term protection for a major component.
Basic Tier: LX Series THE2 (Single-Stage)
Reliable and cost-effective, this 8.0 HSPF2 unit features a rugged stamped slotted cabinet and MaxAlloy™ coils designed to resist formicary corrosion in residential environments.
Coleman
★★★★☆
As of late 2025, Coleman has transitioned into the Bosch Home Comfort Group following Bosch’s acquisition of the Johnson Controls residential HVAC business. This transition includes a complete shift to R-454B refrigerant for the 2026 model year.
Heating Efficiency (HSPH)
The 2026 lineup offers improved heating performance, ranging from the entry-level TH4 at 7.5 HSPF2 to the high-efficiency Echelon HC20, which delivers up to 9.0 HSPF2 for superior cold-weather savings.
Compressor Technology
The lineup advances from reliable single-stage operation in the TH4 to high-performance two-stage technology in the HC19. The flagship HC20 utilizes a fully variable-capacity inverter compressor to provide precise temperature control and quiet operation.
Unit Replacement Warranty
The Coleman Echelon series (HC19 and HC20) is backed by a Lifetime compressor guarantee. While these models do not currently offer a unit replacement guarantee, the lifetime compressor protection qualifies the brand for a four-star rating and Green Card status.
Exterior Construction
The unit utilizes a stamped/slotted steel cabinet or wire mesh guard rather than a premium wrap-around louvered design. This provides standard protection while keeping the entry-level price point low.
Coleman Model Comparison
Basic Series: TH4
Why choose it: A straightforward and reliable single-stage solution that meets 2026 efficiency standards at a budget-friendly price. Trade-offs: Lacks the high-efficiency ratings and lifetime compressor coverage of the Echelon models.
Premium Series: HC19
Why choose it: This two-stage Echelon model offers a significant comfort upgrade and is backed by a Lifetime compressor guarantee. Trade-offs: Higher initial cost than the LX series without the full modulation of the flagship model.
Ultimate Series: HC20
Why choose it: The top-tier variable-capacity model provides the highest efficiency and best indoor temperature stability, along with a Lifetime compressor guarantee. Trade-offs: Requires a significant investment and specific communicating controls for peak performance.
Comfort-Aire
★☆☆☆☆
Comfort-Aire has transitioned its LE Series to R-454B refrigerant, focusing on a bifurcated lineup that serves budget-conscious installs and high-efficiency inverter needs, though it currently lacks a mid-tier two-stage option.
Heating Efficiency (HSPH)
Efficiency levels are split between the entry-level 7.5 HSPH2 single-stage units and the high-performance 10.0 HSPH2 inverter systems, meeting standard 2026 requirements across most regions.
Compressor Technology
The brand bypasses the "Premium" two-stage category, moving directly from a standard single-stage scroll compressor to a fully modulating inverter-driven compressor for its top-tier equipment.
Unit Replacement Warranty
Comfort-Air offers a standard 10-year parts and compressor warranty. However, because the brand does not offer a Unit Replacement Guarantee for major component failures, it receives a 1-Star rating under our 2026 criteria.
Exterior Construction
The unit utilizes a stamped/slotted steel cabinet or wire mesh guard rather than a premium wrap-around louvered design. This provides standard protection while keeping the entry-level price point low.
Comfort-Aire Model Comparison
Basic Series: HSA14S
Why choose it: An affordable, reliable option for simple replacements where R-454B compliance is the primary goal. Trade-offs: Single-stage operation leads to more frequent cycling and less precise temperature control.
Ultimate Series: HP19V
Why choose it: The flagship inverter system offers superior modulation, allowing the unit to run at very low speeds for maximum energy savings and dehumidification. Trade-offs: Significant price jump from the basic model without the added security of a unit replacement warranty found in other brands.
Comfortmaker
★ ★ ★ ☆ ☆
Comfortmaker has successfully transitioned its primary ducted lineup to R-454B (Low-GWP) refrigerant for 2026. As an International Comfort Products (ICP) brand, Comfortmaker utilizes the Ion™ communication platform for its high-efficiency models. While their top-tier units offer excellent efficiency and a robust "No-Hassle" replacement guarantee, the brand remains in the 3-star category because their warranty terms do not include the lifetime compressor coverage required for a Green Card rating.
Heating Efficiency (HSPH)
Comfortmaker’s 2026 models offer a wide range of performance, with the Basic series starting at the 7.5 HSPH2 minimum and the flagship Ion 23 reaching up to 10.5 HSPH2. This high-end efficiency makes the Ultimate series an excellent candidate for cold-climate heat pump applications.
Compressor Technology
The technology scales significantly across the tiers: the Performance series relies on single-stage operation, the Ion 18 uses a two-stage compressor for better humidity control, and the Ion 23 features a fully variable-speed inverter compressor for maximum precision and quiet operation.
Unit Replacement Warranty
Comfortmaker is assigned a 3-star rating because its Premium and Ultimate models carry a 10-year "No-Hassle" Unit Replacement Limited Warranty. If the compressor fails within the first decade, Comfortmaker provides a replacement outdoor unit rather than just a replacement part. However, without a lifetime compressor guarantee, it does not qualify for a 4 or 5-star rating.
Exterior Construction
The unit utilizes a stamped/slotted steel cabinet or wire mesh guard rather than a premium wrap-around louvered design. This provides standard protection while keeping the entry-level price point low.
Comfortmaker Model Comparison
Basic Series: Performance 14 (N5H5S)
Why choose it: A cost-effective way to adopt the new R-454B refrigerant standard while maintaining reliable heating performance. Trade-offs: Lacks the unit replacement guarantee and operates at a fixed speed, which can be louder and less efficient.
Premium Series: Ion 18 (C5H8T)
Why choose it: Features two-stage cooling and heating, providing a significant boost in home comfort and a 10-year replacement guarantee. Trade-offs: Higher upfront cost than the Performance series and requires a compatible Ion™ wall control for full functionality.
Ultimate Series: Ion 23 (C5H3V)
Why choose it: Provides industry-leading variable-speed efficiency and ultra-quiet operation, making it ideal for homeowners seeking the highest level of performance. Trade-offs: Very high initial investment; the 10-year replacement limit is shorter than the lifetime guarantees offered by some luxury-tier brands.
Concord
★☆☆☆☆
Concord has transitioned its 2026 lineup to meet new environmental standards, featuring the 7HP series designed for R-454B refrigerant. These models focus on providing a balance of reliability and affordability for the budget-conscious homeowner.
Heating Efficiency (HSPH)
Concord models typically offer heating efficiencies up to 8.5 HSPH2. While these ratings are competitive for entry-level and mid-range systems, they fall short of the ultra-high efficiency ratings found in boutique HVAC brands.
Compressor Technology
The lineup moves from reliable single-stage operation in the 7HP14F series to high-performance variable-speed inverter technology in the 7HP19V. Because the brand does not currently offer a two-stage model, it does not have a "Premium" category entry.
Unit Replacement Warranty
Concord is assigned a 1-Star rating because while they offer a standard 10-year parts and compressor warranty upon timely registration, they do not provide a Unit Replacement Guarantee. If a major component like the compressor fails, the warranty covers the part but does not replace the entire outdoor unit.
Exterior Construction
Unlike some other value brands, Concord utilizes a louvered metal panel construction. This provides superior protection for the condenser coil against mechanical damage from hail or lawn equipment compared to standard wire mesh guards.
Concord Model Comparison
Basic Series: 7HP14F
Why choose it: An affordable, no-frills R-454B compliant system that uses a proven single-stage scroll compressor for reliable heating. Trade-offs: Lacks a compressor sound blanket and has lower efficiency, leading to higher monthly operating costs and more noise.
Ultimate Series: 7HP19V
Why choose it: The top-tier R-454B model offering variable-speed operation for both the compressor and the condenser fan, maximizing comfort. Trade-offs: Significantly higher upfront cost than the Basic series without an increase in warranty longevity.
Daikin
★★★★★
Daikin has transitioned its core 2026 lineup to the "DH" series to lead the industry in the move toward Low-GWP R-32 refrigerant, offering superior environmental sustainability without sacrificing heating performance.
Heating Efficiency (HSPH)
The 2026 DH series maintains a consistent HSPF2 rating of 8.2 across its Basic, Premium, and Ultimate ducted platforms, providing reliable heat output even in decreasing ambient temperatures.
Compressor Technology
Daikin offers a complete technology tiers: the DH5SE utilizes a single-stage scroll for simplicity, the DH7TC features a two-stage Copeland UltraTech for enhanced humidity control, and the DZ9VC serves as the flagship variable-speed inverter model.
Unit Replacement Warranty
Daikin earns a 5-star rating by providing a 12-year parts warranty along with a 12-year unit replacement limited warranty, which provides a completely new outdoor unit if the compressor fails within the first twelve years.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Daikin Model Comparison
Basic Series: DH5SE
Why choose it: Features the R-32 Low-GWP refrigerant in a reliable, single-stage design that includes a high-density sound blanket and 12-year replacement protection. Trade-offs: Lacks the precision temperature management of multi-stage or inverter-driven systems.
Ultimate Series: DZ9VC
Why choose it: This flagship inverter system provides the highest comfort levels with variable-speed modulation and is fully compatible with the Daikin One+ smart ecosystem. Trade-offs: Higher initial investment and requires a dedicated communicating thermostat to unlock all performance features.
Day & Night
★★★☆☆
Day & Night has transitioned its 2026 catalog to Low-GWP R-454B (Puron Advance™) refrigerant across all tiers. The N5H5S, C5H8T, and C5H3V models were selected for this update as they represent the brand's primary shift toward meeting new environmental standards while maintaining the durable build quality for which the Ion™ and Performance series are known.
Heating Efficiency (HSPH)
Efficiency ratings for the new R-454B lineup are competitive, starting at 7.8 HSPF2 for the Basic N5H5S series and reaching up to 12.0 HSPF2 for the Ultimate variable-speed inverter models.
Compressor Technology
The updated lineup offers a clear technology ladder: the Basic N5H5S uses a reliable single-stage scroll, the Premium C5H8T features a two-stage compressor for better humidity management, and the Ultimate C5H3V utilizes a variable-speed inverter for maximum energy savings and precise temperature control.
Unit Replacement Warranty
Day & Night earns a 3-star rating because its Ion™ series models include a 10-Year No Hassle Replacement™ limited warranty. If a major component like the compressor fails within the first decade, the brand provides a one-time replacement of the entire outdoor unit. While robust, it does not reach the 4 or 5-star tiers which require lifetime or 12-year terms.
Exterior Construction
These units utilize a heavy-duty wire hail guard design. While not louvered, the dense wire grille is engineered to provide essential protection for the condensing coils while allowing for maximum airflow and easier cleaning access compared to full-panel enclosures.
Day & Night Model Comparison
Basic Series: N5H5S
Why choose it: An affordable entry into R-454B compliance that offers the core reliability Day & Night is known for. Trade-offs: The single-stage operation is less efficient and noisier during startup cycles compared to higher tiers.
Ultimate Series: C5H3V
Why choose it: The flagship variable-speed model provides the highest HSPF2 ratings and whisper-quiet operation as low as 54 decibels. Trade-offs: High initial investment and requires the Ion™ Black System Control for full functionality.
Direct Comfort
★★★★☆
Direct Comfort has shifted its 2026 lineup to utilize R-32 refrigerant, aligning with the industry's transition to Low-GWP alternatives. These specific models, the GSZH5 and GSZV9, were selected for this update because they represent the brand's pivot away from R-410A, offering better thermal conductivity and reduced environmental impact while maintaining the brand's signature louvered cabinet design.
Heating Efficiency (HSPH)
The updated R-32 models provide competitive cold-weather performance. The Basic GSZH5 achieves a 7.8 HSPF2, while the variable-speed GSZV9 reaches 8.2 HSPF2. These ratings ensure homeowners meet 2026 efficiency standards while benefiting from the superior heat-carrying capacity of R-32.
Compressor Technology
Direct Comfort's 2026 catalog focuses on two extremes. The Basic series uses a reliable single-stage scroll compressor. The Premium category has been skipped for this update as the brand does not currently offer a two-stage Low-GWP model. The Ultimate GSZV9 series utilizes a high-tech variable-speed inverter compressor for maximum comfort and modulation.
Unit Replacement Warranty
The brand earns a 4-star rating due to its Lifetime Compressor Warranty on the Ultimate series. While it includes a 10-year Unit Replacement pledge (replacing the entire outdoor unit if the compressor fails), it does not reach the 5-star threshold which requires a 12+ year term for both compressor and unit replacement.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Direct Comfort Model Comparison
Basic Series: GSZH5
Why choose it: An affordable, durable entry into Low-GWP technology with a heavy-duty cabinet. Trade-offs: Lacks the lifetime compressor warranty and offers only single-stage operation.
Ultimate Series: GSZV9
Why choose it: Features top-tier inverter technology and R-32 efficiency, backed by a lifetime compressor warranty. Trade-offs: Significantly higher upfront cost and requires specialized communicating controls.
Ducane
★☆☆☆☆
For the 2026 update, Ducane has transitioned its lineup to prioritize Low-GWP refrigerants, specifically adopting R-454B to meet modern environmental standards. We have selected the 7HP14F for the Basic category and the 7HP19V for the Ultimate category as they represent the brand's commitment to this new refrigerant technology while maintaining their reputation for value-driven reliability.
Heating Efficiency (HSPH)
The selected models offer solid performance for their tiers; the Basic 7HP14F delivers a standard 7.5 HSPF2, while the variable-speed 7HP19V reaches up to 8.5 HSPF2, providing enhanced energy savings during the heating season.
Compressor Technology
Ducane's 2026 catalog focuses on single-stage and variable-speed inverter technology. The Premium category has been skipped for this brand as Ducane does not currently offer a dedicated two-stage Low-GWP model, opting instead to move directly from single-stage value units to high-performance inverter systems.
Unit Replacement Warranty
Ducane earns a 1-Star rating due to its standard warranty terms. While it offers a dependable 10-year limited warranty on parts and the compressor (upon registration), it does not include a Unit Replacement "No Hassle" guarantee for major component failures, which is a key differentiator for higher-rated brands.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Ducane Model Comparison
Basic Series: 7HP14F
Why choose it: This model is an ideal choice for budget-conscious homeowners looking for a Low-GWP (R-454B) compliant system that meets all 2026 regulatory standards without the high cost of inverter technology. Trade-offs: Single-stage operation means less precise temperature control and higher sound levels compared to more advanced models.
Ultimate Series: 7HP19V
Why choose it: The 7HP19V features advanced Inverter-Driven technology for precise climate control and maximum efficiency, fully utilizing the environmental benefits of R-454B refrigerant. Trade-offs: Higher upfront investment and more complex electronic components compared to the Basic series.
Ecoer
★☆☆☆☆
For the 2026 season, Ecoer has streamlined its ducted heat pump lineup to focus exclusively on high-efficiency variable-speed technology using Low-GWP R-454B refrigerant. This transition centers on the TDi Pro 2 series, which integrates advanced IoT-driven predictive maintenance and "Backup Running Technology," allowing the unit to continue operating even if certain sensors fail. These models were selected to reflect Ecoer’s specific market position as a technology-first brand in the sustainable heating space.
Heating Efficiency (HSPH)
The TDi Pro 2 series provides exceptional heating performance with an HSPF2 rating of up to 10.0. These Low-GWP models are designed for all-climate operation, ensuring reliable heat output and high efficiency even during extreme winter conditions.
Compressor Technology
Ecoer does not offer traditional single-stage or two-stage models for the 2026 ducted market, effectively bypassing the Basic and Premium categories. Instead, they utilize fully modulating inverter-driven compressors that adjust capacity in real-time to match the home's heating or cooling load.
Unit Replacement Warranty
Ecoer offers a 10-year parts warranty and a 10-year labor warranty when the system is monitored via their IoT gateway. However, the brand does not provide a "Unit Replacement" or "No-Hassle" guarantee that would replace the entire outdoor unit in the event of a compressor failure. Per our 2026 rating hierarchy, the absence of this replacement term results in a 1-star rating.
Exterior Construction
The outdoor units feature a heavy-duty slotted steel panel construction. While this provides a durable cabinet and necessary airflow, it offers less physical protection for the condenser coil against hail or debris compared to heavy-duty louvered panel designs found on higher-rated brands.
Ecoer Model Comparison
Ultimate Series: TDi Pro 2
Why choose it: This is Ecoer's flagship 2026 offering, featuring full inverter modulation, R-454B refrigerant compliance, and smart IoT connectivity for real-time remote monitoring. Trade-offs: As the brand's primary ducted offering, it carries a higher upfront cost than basic systems and relies heavily on connected infrastructure for its advanced features.
Energi Air Elite Series
★ ★ ★ ★ ☆
The 2026 Energi Air Elite Series marks a definitive shift toward environmental sustainability by adopting R-32 refrigerant across its primary lineup. By selecting the AZS5B, AZT7C, and the flagship ASZV9, this update ensures homeowners receive the latest Low-GWP technology designed to meet the newest EPA standards while maintaining the high performance the Elite Series is known for.
Heating Efficiency (HSPH)
Efficiency remains a core strength for this lineup. The Ultimate ASZV9 leads with an HSPF2 of 10.0, while the Premium AZT7C and Basic AZS5B provide 8.2 and 7.8 respectively. These R-32 models offer superior thermal heat transfer, allowing for high performance even in lower ambient temperatures.
Compressor Technology
The lineup offers a complete technological ladder: the AZS5B uses a high-efficiency single-stage scroll, the AZT7C upgrades to a two-stage Copeland UltraTech for better humidity control, and the ASZV9 utilizes a fully modulating variable-speed inverter for precise temperature maintenance.
Unit Replacement Warranty
The brand earns its 4-star Green rating through the exceptional warranty on the Ultimate series. The ASZV9 includes a Lifetime Unit Replacement Limited Warranty for the original, registered homeowner. This means if the compressor fails, the entire outdoor unit is replaced, rather than just the individual part.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Energi Air Elite Series Model Comparison
Basic Series: AZS5B
Why choose it: A reliable, entry-level Low-GWP solution that meets modern efficiency standards with a durable louvered cabinet. Trade-offs: Single-stage operation leads to more frequent cycling and less precise temperature control.
Premium Series: AZT7C
Why choose it: The two-stage compressor offers a "middle ground" that provides significantly better dehumidification and quieter operation than the basic model. Trade-offs: Lacks the ultra-fine modulation found in the inverter-driven series.
Ultimate Series: ASZV9
Why choose it: Features industry-leading inverter technology and a lifetime replacement warranty, making it a "future-proof" investment for long-term homeowners. Trade-offs: High upfront equipment cost and requires a proprietary communicating thermostat for full functionality.
Evcon
★☆☆☆☆
For the 2026 season, Evcon has transitioned its residential lineup to Low-GWP R-454B refrigerant to meet new EPA standards. Following the 2025 acquisition of the Johnson Controls residential business by Bosch Home Comfort, Evcon continues to serve as a value-focused brand within this new global portfolio. The RH4 model was selected for this update as it represents the brand's shift toward multi-stage heating and cooling using environmentally compliant technology.
Heating Efficiency (HSPH)
The RH4 series delivers a heating efficiency of up to 7.5 HSPF2. While meeting current federal minimums for the 2026 season, this series is designed to provide a balance of upfront affordability and improved operational efficiency compared to older R-410A baseline systems.
Compressor Technology
The RH4 is classified as a Premium series model because it features a two-stage scroll compressor. This technology allows the unit to run at a lower capacity during mild weather for better humidity control and noise reduction, stepping up to full capacity only when extreme temperatures demand it. Because Evcon does not currently offer a variable-speed inverter model for the ducted market, the Ultimate category is skipped for this brand.
Unit Replacement Warranty
Evcon provides a standard 10-year parts and 10-year compressor limited warranty upon registration. However, because the brand does not offer a Unit Replacement pledge—where the entire outdoor unit is replaced if the compressor fails—it receives a 1-Star rating in our 2026 database.
Exterior Construction
The unit features a specialized slotted-panel steel cabinet. This design provides protection for the internal condensing coils against larger debris while maintaining high-airflow efficiency, though it offers less physical protection against hail or small objects than heavy-duty louvered designs.
Evcon Model Comparison
Premium Series: RH4 (R-454B)
Why choose it: Offers superior comfort over single-stage units by utilizing two stages of heating and cooling, all while utilizing the newest Low-GWP refrigerant. Trade-offs: Lacks the ultra-high efficiency of variable-speed inverters and uses a slotted panel rather than a full louvered cabinet.
EverRest Elite Series
★★★★★
For the 2026 season, EverRest Elite Series has successfully transitioned its entire central lineup to R-32 Low-GWP refrigerant. By adopting the same high-performance platforms found in the Energi Air Elite Series, these models offer improved thermal efficiency and a significantly lower environmental footprint compared to legacy R-410A systems. This update ensures that homeowners receive the latest in HVAC innovation while adhering to new EPA standards.
Heating Efficiency (HSPH)
The 2026 lineup delivers strong efficiency across all categories. The Basic AZS5B provides a standard 7.8 HSPF2, while the Premium AZT7C steps up to 8.2 HSPF2. The flagship Ultimate AZV9S sets the pace for the brand with a top-tier 10.0 HSPF2, making it an excellent choice for maintaining comfort in colder northern climates.
Compressor Technology
EverRest offers a clear technology progression: the Basic tier features a reliable single-stage scroll, the Premium tier utilizes a two-stage compressor for better humidity management, and the Ultimate tier employs advanced variable-speed inverter technology. This allows the system to modulate its output in small increments to match the exact heating or cooling load of the home.
Unit Replacement Warranty
EverRest Elite Series earns its 5-star rating through an exceptional warranty package. The Ultimate series leads the industry with a Lifetime Unit Replacement guarantee, meaning if the compressor ever fails for the original homeowner, the entire outdoor unit is replaced. The Premium and Basic models also include a strong 10-year Unit Replacement pledge, providing superior peace of mind compared to parts-only warranties.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
EverRest Elite Series Model Comparison
Basic Series: AZS5B
Why choose it: A durable and affordable R-32 solution that includes a 10-year unit replacement guarantee rarely found in budget-tier models. Trade-offs: Single-stage operation is less efficient and noisier during cycles than higher-tier modulating units.
Premium Series: AZT7C
Why choose it: Offers two-stage performance for enhanced indoor comfort and is backed by a Lifetime compressor warranty. Trade-offs: While very capable, it does not offer the full-range modulation of the Ultimate series inverter.
Ultimate Series: AZV9S
Why choose it: The pinnacle of the 2026 lineup, featuring ultra-quiet inverter tech, high HSPF2 ratings, and a Lifetime Unit Replacement warranty. Trade-offs: Requires a higher initial investment and specialized communicating thermostats for full functionality.
EverRest Extreme Comfort
★ ★ ★ ★ ★
For the 2026 update, EverRest Extreme Comfort has introduced the GZS and GZT series to facilitate the transition to Low-GWP R-32 refrigerants. These models were selected because they combine modern environmental compliance with the brand's industry-leading lifetime protection guarantees.
Heating Efficiency (HSPH)
The updated lineup provides excellent heating performance. The GZS5B meets standard efficiency mandates with a 7.5 HSPH2, while the Premium GZT7C reaches up to 8.2 HSPH2. The Ultimate GSZV9 leads the brand with an exceptional 10.0 HSPH2 rating, ensuring peak performance in harsh winters.
Compressor Technology
EverRest offers a precise technology ladder for every home. The Basic GZS5B features a reliable single-stage compressor. The Premium GZT7C uses a two-stage Copeland UltraTech scroll for enhanced humidity control, while the Ultimate GSZV9 utilizes a variable-speed inverter for maximum energy savings and precise temperature maintenance.
Unit Replacement Warranty
The 5-star rating is anchored by the "Total Unit Replacement" warranty. If the compressor fails on a registered GZT7C or GSZV9 model, the entire outdoor unit is replaced for the original homeowner. This lifetime protection is a hallmark of the EverRest brand's commitment to durability.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
EverRest Extreme Comfort Model Comparison
Basic Series: GZS5B
Why choose it: A modern R-32 compliant unit that offers legendary reliability and a 10-year unit replacement warranty at an entry-level price point. Trade-offs: Single-stage operation lacks the precision of higher-tier models.
Ultimate Series: GSZV9
Why choose it: Features a high-efficiency inverter-driven swing compressor and Integrated ComfortBridge Technology for unmatched home comfort and a Lifetime replacement guarantee. Trade-offs: Utilizes legacy R-410A refrigerant and requires a higher initial investment.
Franklin
★★★★☆
Franklin HVAC systems have successfully transitioned to Low-GWP R-32 refrigerant for their 2026 lineup. We have selected the GSZH5, GLZT7C, and GVZC20 models to highlight this shift. By moving to R-32, Franklin provides a more environmentally responsible cooling solution that complies with new federal regulations while maintaining the high-durability standards the brand is known for.
Heating Efficiency (HSPH)
The updated Franklin lineup offers consistent heating performance across all tiers. The Basic GSZH5 delivers a reliable 7.8 HSPF2, while the Premium GLZT7C steps up to 8.2 HSPF2. For maximum efficiency, the Ultimate GVZC20 reaches up to 10.0 HSPF (estimated 8.5+ HSPF2), providing significant energy savings in colder climates.
Compressor Technology
Franklin offers a clear technology ladder: the GSZH5 utilizes a traditional single-stage scroll compressor, the GLZT7C features a two-stage Copeland UltraTech scroll for better humidity control, and the GVZC20 uses a high-performance variable-speed inverter for precise temperature management and ultra-quiet operation.
Unit Replacement Warranty
This brand receives a 4-star rating due to its Lifetime Compressor Limited Warranty for original registered homeowners. While Franklin does not offer a full "unit replacement" pledge for these specific models, the lifetime protection on the compressor—the heart of the system—is a major value add compared to standard 10-year brands.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Franklin Model Comparison
Basic Series: GSZH5 (R-32)
Why choose it: A budget-friendly, R-32 compliant model that doesn't sacrifice build quality. It includes a louvered coil guard and a lifetime compressor warranty. Trade-offs: Single-stage operation leads to more frequent cycling and less consistent indoor humidity levels.
Premium Series: GLZT7C (R-32)
Why choose it: Features a two-stage compressor that can run at lower speeds during mild weather, providing a better balance of comfort and efficiency than basic models. Trade-offs: Higher upfront cost than the GSZH5 without the full energy savings of a variable-speed system.
Ultimate Series: GVZC20
Why choose it: The flagship choice for maximum comfort. Its variable-speed inverter technology eliminates temperature swings and operates at whisper-quiet levels. Trade-offs: Requires a high-end communicating thermostat and professional-grade installation to realize its full efficiency potential.
Fraser-Johnston
★☆☆☆☆
Following the 2025 acquisition of Johnson Controls' residential business by Bosch Home Comfort, the Fraser-Johnston brand has been revitalized with a focus on sustainable cooling technology. The 2026 catalog centers on the THE2, HL19, and HL20 models, which mark the official transition to R-454B Low-GWP refrigerant. These models were selected to showcase how the brand now integrates Bosch's emphasis on high-efficiency inverter tech into the traditional North American split-system format.
Heating Efficiency (HSPH)
The updated lineup delivers competitive heating performance across the board. The entry-level THE2 offers a 7.5 HSPF2, while the HL19 steps up to 8.1 HSPF2. The flagship HL20 Ultimate series achieves up to 9.0 HSPF2, providing high-efficiency heating even as Fraser-Johnston shifts its manufacturing standards under the new Bosch Home Comfort ownership.
Compressor Technology
Fraser-Johnston maintains a clear hierarchy of compressor stages. The THE2 utilizes a reliable single-stage scroll, while the HL19 features a two-stage compressor for improved load matching. The Ultimate HL20 utilizes an inverter-driven variable-speed compressor, reflecting the advanced modulation technology Bosch is known for globally.
Unit Replacement Warranty
Despite the high-profile acquisition by Bosch, the standard warranty for these specific residential models remains a 10-year parts and compressor limited warranty. Because these models do not currently include a "No-Hassle" unit replacement pledge for major component failures, the brand receives a 1-Star rating under our strict 2026 evaluation criteria.
Exterior Construction
Unlike many premium brands, these models utilize a heavy-duty wire-frame coil guard rather than louvered panels. While this allows for maximum airflow and easy coil cleaning, it offers less protection against physical impacts such as hail or lawn equipment compared to louvered designs.
Fraser-Johnston Model Comparison
Basic Series: THE2
Why choose it: A straightforward, cost-effective solution for homeowners moving to R-454B refrigerant who prefer simple, time-tested single-stage mechanics. Trade-offs: Higher noise levels and lacks the precise humidity control of the multi-stage HL models.
Ultimate Series: HL20
Why choose it: The best of the Bosch-acquired technology, featuring a side-discharge inverter design that is exceptionally quiet and footprint-efficient. Trade-offs: Requires a specific communicating thermostat to achieve advertised efficiency and comes with a higher price point.
Friedrich
★★★☆☆
Friedrich's 2026 ducted lineup completes the transition to Low-GWP refrigerants with the introduction of the Endeavor series utilizing R-454B. These models were selected for this update as they represent the brand's pivot away from R-410A, offering a future-proof solution that meets the latest EPA environmental standards while maintaining the heavy-duty build quality Friedrich is known for.
Heating Efficiency (HSPH)
The selected Low-GWP models offer competitive cold-weather performance. The RP14AY Basic series provides a solid 7.8 HSPF2, while the flagship FRP19AY Ultimate series delivers up to 8.5 HSPF2. These ratings ensure efficient heat extraction even as outdoor temperatures drop, reducing reliance on expensive auxiliary heat.
Compressor Technology
Friedrich utilizes advanced compressor logic in these 2026 models. The Ultimate series features a fully modulating Inverter-driven variable speed compressor for maximum precision. The Premium category is skipped for this brand update as their current R-454B catalog focuses on the versatile two-stage performance of the Classic series and the high-end modulation of the K-Series.
Unit Replacement Warranty
Friedrich earns a 3-star rating due to its "Conditional Unit Replacement" policy. When registered within 90 days and installed as a matched system, both the Basic and Ultimate models include a 10-year parts warranty and a 10-year unit replacement warranty, which provides a new outdoor unit if the compressor fails.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Friedrich Model Comparison
Basic Series: Endeavor RP14AY
Why choose it: This R-454B compliant model offers two-stage compressor technology at a value price point, providing better humidity control and efficiency than standard single-stage units. Trade-offs: It lacks the ultra-high efficiency ratings and silent operation of the variable-speed inverter models.
Ultimate Series: Endeavor FRP19AY
Why choose it: As the top-tier R-454B option, it features an inverter-driven variable speed compressor that adjusts capacity in small increments to maintain a perfect temperature. Trade-offs: The sophisticated electronics and inverter drive result in a higher upfront cost compared to the Classic series.
Frigidaire
★★★☆☆
Frigidaire HVAC is entering a new era in 2026 following the acquisition of its parent company, Nortek Global HVAC, by Rheem Manufacturing. This transition coincides with the mandatory industry shift to Low-GWP R-454B refrigerant. The selected FSH4BE and FSH4BF models represent the brand's commitment to eco-friendly heating solutions under this new corporate umbrella, combining Frigidaire's established residential designs with the advanced R&D resources of Rheem.
Heating Efficiency (HSPH)
The Low-GWP Frigidaire models provide solid heating efficiency, with the Basic series offering 7.5 HSPF2 and the Premium FSH4BF reaching up to 8.1 HSPF2. These ratings ensure compliance with modern energy standards while delivering consistent warmth in varied climates.
Compressor Technology
The 2026 selection includes both single-stage scroll compressors for the Basic tier and the Copeland UltraTech two-stage compressor for the Premium tier. Note that the Ultimate category has been omitted for this brand as the current R-454B product roadmap prioritizes these core single and two-stage platforms over a residential variable-speed inverter at this time.
Unit Replacement Warranty
Frigidaire earns a 3-Star rating primarily due to its "Quality Pledge." This warranty provides a full unit replacement if the compressor fails within the first 10 years of ownership. While this offers excellent peace of mind, it does not reach the 4 or 5-star tiers which require a Lifetime compressor warranty or extended 12-year terms.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Frigidaire Model Comparison
Basic Series: FSH4BE
Why choose it: This model offers a cost-effective entry point into Low-GWP R-454B technology without sacrificing the durable louvered construction Frigidaire is known for. Trade-offs: As a single-stage system, it lacks the ability to modulate capacity, which can lead to larger temperature swings compared to multi-stage units.
Premium Series: FSH4BF
Why choose it: Utilizing two-stage technology, the FSH4BF provides enhanced dehumidification and more consistent indoor temperatures by running at a lower capacity during milder weather. Trade-offs: It carries a higher upfront cost than the Basic series and requires a compatible two-stage thermostat to utilize its full efficiency potential.
Fujitsu
★☆☆☆☆
For the 2026 update, Fujitsu’s central ducted lineup focuses on the WP and FOP series, which have been updated to meet new Low-GWP refrigerant standards. These models represent Fujitsu’s traditional North American ducted platform. While the FOP15 and FOP18 offer advanced multi-stage performance, the brand remains a 1-star rated brand because their warranty does not include a unit replacement guarantee if the compressor fails, which has become an industry standard for premium labels.
Heating Efficiency (HSPH)
The 2026 lineup offers tiered performance for varied climates. The Ultimate FOP18 achieves up to 9.0 HSPH2, while the Premium FOP15 provides a solid 8.5 HSPH2. Even the entry-level WP14 series meets 2026 standards with 7.5 HSPH2, ensuring efficiency regardless of the budget tier selected.
Compressor Technology
Fujitsu offers a complete technology ladder for their ducted systems. The Basic WP14 uses a reliable single-stage scroll. The Premium FOP15 features a two-stage compressor that provides enhanced comfort and humidity control. The Ultimate FOP18 utilizes a fully modulating variable-speed inverter for maximum precision and quiet operation.
Unit Replacement Warranty
Fujitsu provides a standard 10-year parts and compressor warranty. However, they do not offer a "Unit Replacement" guarantee—a policy where a failed compressor results in a new outdoor unit rather than just a replacement part. This limitation is why the brand is not recommended as a top pick by HvacRepairGuy.
Exterior Construction
A major benefit of the Fujitsu ducted line is the heavy-duty louvered steel cabinet. This construction is superior to wire mesh guards as it physically protects the delicate condenser coils from hail, lawn equipment, and debris.
Fujitsu Model Comparison
Basic Series: WP14
Why choose it: A reliable, single-stage R-454B/R-32 compliant unit in a rugged louvered cabinet. Trade-offs: Simple on/off operation leads to higher noise levels and less precise climate control. Note that these value-tier units are manufactured in Mexico.
Premium Series: FOP15
Why choose it: This two-stage model provides a significant step up in comfort by running at a lower capacity during mild weather, reducing starts and stops. These units are proudly manufactured in the USA. Trade-offs: More expensive than the basic tier without the full modulation of an inverter.
Ultimate Series: FOP18
Why choose it: The flagship variable-speed inverter system. It offers the highest efficiency and the quietest performance in the ducted lineup and is manufactured in the USA. Trade-offs: Higher upfront cost and requires specialized installation for full efficiency benefits.
GE
★☆☆☆☆
GE Appliances Air & Water has pivoted its 2026 ducted strategy to emphasize Low-GWP R-454B refrigerant across its primary residential tiers. These updates leverage GE's global engineering network to provide high-efficiency inverter options (NS21H) and reliable single-stage systems (NS17H) that comply with the latest environmental mandates while maintaining compatibility with standard 24V thermostats.
Heating Efficiency (HSPH)
The updated R-454B models maintain strong performance metrics, with the Basic NS17H series achieving an 8.1 HSPF2. The Ultimate NS21H inverter series offers a significant leap in cold-climate capability, delivering up to a 10.5 HSPF2 rating.
Compressor Technology
GE's current lineup transitions directly from fixed-speed single-stage compressors to high-performance variable-speed inverter technology. As the brand does not offer a dedicated two-stage R-454B model, the Premium category has been omitted from this comparison.
Unit Replacement Warranty
GE provides a standard 10-year parts and compressor warranty upon registration. However, unlike some premium competitors, GE does not offer a unit replacement pledge (lemon law) for major component failures. This lack of a replacement guarantee limits the brand to a 1-star rating in this category.
Exterior Construction
The outdoor units utilize a slotted steel panel cabinet design. While these panels provide essential airflow and a modern aesthetic, they offer less rigid physical protection for the internal condensing coils compared to traditional heavy-duty louvered cabinets.
GE Model Comparison
Basic Series: NS17H (R-454B)
Why choose it: A straightforward, budget-conscious solution for meeting 2026 refrigerant standards with a trusted American brand name. Trade-offs: Fixed-speed operation and slotted cabinet design offer lower protection and comfort control than the inverter series.
Ultimate Series: NS21H (R-454B)
Why choose it: Features advanced inverter technology for precise temperature maintenance and maximum energy savings using eco-friendly R-454B. Trade-offs: Higher initial investment and reliance on a global manufacturing supply chain for specialized components.
Gibson
★☆☆☆☆
Gibson's 2026 lineup completes the transition to R-454B refrigerant. Now a part of the Rheem Manufacturing family following their acquisition of Nortek Global HVAC, Gibson focuses on the WSH3BE and FT4BG series. These models provide a future-proof path for homeowners seeking reliable comfort that complies with the latest Low-GWP (Global Warming Potential) environmental standards.
Heating Efficiency (HSPH)
The selected Low-GWP models deliver competitive efficiency, with the Basic WSH3BE series reaching 7.5 HSPH2 and the Ultimate FT4BG inverter series achieving up to 10.0 HSPH2. These ratings ensure steady performance in moderate climates while maintaining lower operational costs than older R-410A units.
Compressor Technology
Gibson utilizes single-stage compressors for their entry-level units and advanced Variable-Speed (Inverter) technology for their Ultimate series. Under Rheem's leadership, the brand continues to emphasize simplified mechanical designs, skipping the 2-stage "Premium" category in the current central split catalog.
Unit Replacement Warranty
Despite the acquisition by Rheem, Gibson maintains its 1-Star rating due to its specific warranty structure. While they offer a solid 10-year parts warranty upon registration, their "Quality Pledge" only provides a 1-year unit replacement guarantee—a shorter window than the 10-year or lifetime terms offered by premium-tier brands.
Exterior Construction
Gibson units are manufactured in Saltillo, Mexico, and are built with a "Servicer-Friendly Jacket" that utilizes a heavy-duty wire grille. This design allows for easier cleaning of the coils and maximum airflow, though it provides less physical protection against hail or small debris compared to full louvered steel panels.
Gibson Model Comparison
Basic Series: WSH3BE
Why choose it: A practical, R-454B compliant solution for homeowners prioritizing low upfront costs and proven single-stage reliability. Trade-offs: Lacks the precision temperature control of higher-tier units and uses a wire grille rather than a louvered cabinet.
Ultimate Series: FT4BG
Why choose it: Features high-efficiency inverter technology and Low-GWP refrigerant for maximum energy savings and superior dehumidification. Trade-offs: Significantly higher initial investment and restricted to a 1-year unit replacement pledge.
GMC
★☆☆☆☆
For the 2026 catalog, GMC has streamlined its lineup to focus on a single, essential Low-GWP model: the VLZS4B. This model was selected as it is the primary R-32 compliant heat pump offered by the brand, representing their core transition to environmentally responsible refrigerants while maintaining a focus on straightforward, reliable heating and cooling.
Heating Efficiency (HSPH)
The VLZS4B provides a standard efficiency rating with an HSPH2 of 7.8. This meets federal requirements for 2026 and ensures reliable performance for homeowners seeking a traditional, cost-effective R-32 heat pump system.
Compressor Technology
GMC currently focuses exclusively on single-stage technology. The Premium (Two-Stage) and Ultimate (Variable-Speed) categories have been skipped for this brand as GMC does not offer multi-stage or inverter models in their current Low-GWP lineup.
Unit Replacement Warranty
This brand is assigned a 1-Star rating. While it includes a standard 10-year parts limited warranty, it does not offer a lifetime compressor warranty or a unit replacement limited warranty, placing it in the baseline tier for long-term protection coverage.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
GMC Model Comparison
Basic Series: VLZS4B
Why choose it: This model is a durable, budget-friendly choice for those needing to comply with Low-GWP R-32 regulations without the complexity of advanced electronics. Trade-offs: As a single-stage unit, it lack the high-efficiency ratings and quieter operation found in multi-stage or inverter systems.
Goodman
★★★★★
Goodman’s 2026 catalog marks a decisive shift toward environmental responsibility by prioritizing Low-GWP refrigerants like R-454B and R-32. These models, specifically the GSZH5, GLZT7C, and GSZV9, were selected because they represent the brand's new standard for sustainable home climate control without sacrificing the high-value warranty protection Goodman is known for.
Heating Efficiency (HSPH)
The updated Low-GWP lineup delivers strong efficiency across all tiers. The Basic GSZH5 offers a solid 7.8 HSPF2, while the Premium GLZT7C and Ultimate GSZV9 push performance further with ratings of 8.1 and 8.2 HSPF2 respectively, ensuring lower utility bills during peak heating months.
Compressor Technology
This lineup covers the full spectrum of modern compressor tech. The Basic series utilizes a reliable single-stage compressor, the Premium GLZT7C features a high-efficiency two-stage compressor for better humidity control, and the Ultimate GSZV9 employs a variable-speed inverter for precise temperature management and maximum energy savings.
Unit Replacement Warranty
Goodman earns a 5-Star rating due to its industry-leading protection. While parts carry a standard 10-year warranty, the Premium and Ultimate models feature a Lifetime Compressor Limited Warranty and a 10-Year Unit Replacement Limited Warranty. Because these units provide long-term security against major component failures, they sit at the top of our rating scale.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Goodman Model Comparison
Basic Series: GSZH5
Why choose it: An excellent value-oriented choice that meets 2026 Low-GWP standards while providing reliable single-stage heating and cooling. Trade-offs: Operates at a single speed, which can lead to slightly more temperature fluctuation compared to multi-stage units.
Premium Series: GLZT7C
Why choose it: The two-stage compressor offers a significant step up in comfort, allowing the unit to run at a lower speed for longer periods to improve dehumidification and efficiency. Trade-offs: Higher cost than the basic model and requires a two-stage compatible thermostat.
Ultimate Series: GSZV9
Why choose it: The pinnacle of Goodman technology, featuring a variable-speed inverter and ComfortBridge technology for ultimate efficiency and quiet operation. Trade-offs: Highest initial cost and the complexity of inverter electronics may lead to higher out-of-warranty repair costs.
GrandAire
★☆☆☆☆
GrandAire's 2026 lineup focuses on environmental compliance by transitioning to R-454B refrigerant across its ducted heat pump series. This update prioritizes the W5H5S and W5H8T models to ensure homeowners meet the latest EPA Low-GWP standards while maintaining the brand's reputation for budget-friendly reliability.
Heating Efficiency (HSPH)
The selected Low-GWP models offer competitive efficiency for the value tier, with the Basic W5H5S reaching up to 7.8 HSPF2 and the Premium W5H8T achieving up to 8.1 HSPF2. These ratings ensure steady performance during shoulder seasons and moderate winter conditions.
Compressor Technology
GrandAire provides a clear step-up in technology between tiers. The Basic series utilizes a reliable single-stage scroll compressor, while the Premium W5H8T features a two-stage scroll compressor for improved humidity control and quieter operation. Note: The "Ultimate" category is currently omitted as the brand focuses on single and two-stage R-454B platforms.
Unit Replacement Warranty
GrandAire offers a 10-year parts and compressor warranty. However, the "GrandAire Advantage" Unit Replacement coverage is limited to 1 year for major component failures. Under the 2026 Rating Logic, this 1-year replacement term results in a 1-Star rating.
Exterior Construction
These units utilize a dense wire coil guard. While this design allows for very easy cleaning of the outdoor coil, it provides less protection against physical impacts (such as hail or lawn debris) compared to the louvered steel panels found on higher-priced HVAC brands.
GrandAire Model Comparison
Basic Series: W5H5S
Why choose it: An ideal entry-level choice for those seeking full R-454B compliance at the lowest possible price point. Trade-offs: Single-stage operation lacks the precise climate control of higher-tier models, and the wire grille offers minimal protection for the coil fins.
Premium Series: W5H8T
Why choose it: Features a two-stage compressor that allows the unit to run at lower speeds during mild weather, increasing efficiency and comfort while meeting modern Low-GWP requirements. Trade-offs: Higher upfront cost than the Basic series and does not include the full inverter-driven modulation found in high-end systems.
Guardian
★☆☆☆☆
Following the strategic acquisition of Johnson Controls’ residential business by Bosch Home Comfort, the Guardian brand has centered its 2026 lineup on the RH4 series. These models represent the brand's shift to Low-GWP R-454B refrigerant, balancing the need for regulatory compliance with an entry-level price point for value-conscious homeowners.
Heating Efficiency (HSPH)
The RH4 series offers a baseline heating efficiency of 7.5 HSPF2. This rating meets the current federal minimums for modern installations, making it an appropriate choice for moderate climates, though it may lack the advanced cold-climate performance seen in Bosch's higher-tier inverter-driven systems.
Compressor Technology
The RH4 is categorized as a "Premium" model within the Guardian lineup due to its two-stage scroll compressor. This technology allows the unit to run at a lower, more efficient capacity during mild days to improve dehumidification and ramp up to full capacity during peak summer or winter conditions. Note that "Ultimate" variable-speed configurations are not currently offered under the Guardian label.
Unit Replacement Warranty
Guardian equipment is backed by a standard 10-year parts and compressor limited warranty upon registration. However, unlike some competitors, it does not include a Unit Replacement pledge. Because a major failure results only in a part replacement rather than a full outdoor unit exchange, it receives a 1-Star rating in our evaluation.
Exterior Construction
The unit features an extruded slotted panel cabinet design. While this provides a structured frame, it is important to note that slotted panels provide less physical protection for the condensing coils compared to heavy-duty louvered panels, leaving the coil slightly more exposed to fine debris and potential impact damage.
Guardian Model Comparison
Premium Series: RH4
Why choose it: Updated for R-454B refrigerant, this model provides two stages of heating and cooling to improve indoor comfort and consistency over basic single-stage systems. Trade-offs: The slotted panel construction offers reduced coil protection compared to premium louvered alternatives.
Heil
★★★☆☆
Heil's 2026 Ion™ series has transitioned to R-454B refrigerant, a Low-GWP solution that reduces environmental impact while maintaining solid performance. We have selected the H5H6S, H5H8T, and H5H3V to highlight this shift. While these models offer modern technology and a communicating platform, they are categorized as a budget pick due to their specific warranty terms and exterior construction.
Heating Efficiency (HSPH)
The 2026 Low-GWP lineup provides competitive heating performance, with the Basic Ion 16 reaching 7.8 HSPF2 and the flagship Ultimate H5H3V delivering an impressive 10.5 HSPF2 for reliable winter operation.
Compressor Technology
Heil provides a clear tiered progression: the Basic series uses a single-stage compressor, the Premium series features a two-stage scroll for improved comfort, and the Ultimate series utilizes a variable-speed inverter for precise temperature control.
Unit Replacement Warranty
Heil earns a 3-Star rating because its "No Hassle Replacement™" limited warranty is capped at 10 years for the top-tier models and 5 years for the entry-tier. This does not meet the "Lifetime" or "12-year" requirements necessary for a Green Card rating.
Exterior Construction
These units utilize a heavy-duty wire grille design rather than louvered panels. While this maximizes airflow, it provides less physical protection for the condensing coils against hail or lawn debris compared to louvered steel cabinets.
Heil Model Comparison
Basic Series: Ion 16 H5H6S
Why choose it: A reliable, communicating single-stage system that meets the new 2026 refrigerant standards. Trade-offs: Limited to a 5-year unit replacement warranty and lacks multi-stage comfort.
Premium Series: Ion 18 H5H8T
Why choose it: Offers two-stage operation for enhanced efficiency and a full 10-year replacement guarantee. Trade-offs: Lacks the precision of the variable-speed inverter found in the Ultimate tier.
Ultimate Series: Ion 23 H5H3V
Why choose it: Features high-efficiency variable-speed technology and the quietest operation in the lineup. Trade-offs: Higher upfront cost and does not offer the lifetime warranty protection of competitive premium brands.
Innovair
★☆☆☆☆
Innovair has aggressively transitioned its ducted lineup to R-454B refrigerant with the 2026 GT4 Series. These models were selected for this update because they meet the latest EPA low-GWP requirements while providing advanced inverter technology at a competitive price point compared to traditional North American manufacturers.
Heating Efficiency (HSPH)
The selected Low-GWP GT4 models deliver high-performance heating with ratings reaching up to 9.4 HSPF2. This efficiency is maintained even in cold climates, with certain system pairings maintaining full heat output at significantly low outdoor temperatures.
Compressor Technology
The GT4 Series utilizes "Ultimate" category variable-speed inverter compressors that modulate power to match the precise heating or cooling load. The "Premium" category is skipped for this brand as Innovair focuses on the transition from basic single-stage units directly to full inverter-driven performance.
Unit Replacement Warranty
Innovair offers a standard 10-year parts and compressor warranty upon registration. However, they do not currently provide a "No-Hassle" unit replacement guarantee. Under the HvacRepairGuy rating logic, the lack of a unit replacement period results in a 1-star rating.
Exterior Construction
The GT4 unit is protected by a stamped/slotted metal cabinet. While this provides a modern aesthetic and essential protection, it is important to note that slotted panels offer slightly less physical protection against fine debris or hail impact compared to heavy-duty louvered steel cabinets.
Innovair Model Comparison
Basic Series: GOLDTEC (R-454B)
Why choose it: A practical choice for homeowners seeking a low-GWP transition with straightforward, single-stage operation. Trade-offs: Lacks the noise reduction and energy savings of the inverter models.
Ultimate Series: GT4 Series (R-454B)
Why choose it: Features 2026-ready R-454B refrigerant and a variable-speed inverter for maximum comfort and operational efficiency. Trade-offs: Stamped cabinet design is less robust than some premium competitors; relies on specialized inverter components.
KeepRite
★★★☆☆
For 2026, KeepRite has transitioned its flagship Ion™ Series to R-454B refrigerant. We have selected the C5H6S, C5H8T, and C5H3V models for this update as they represent the brand's pivot toward environmentally responsible heating and cooling, offering a 75% reduction in global warming potential compared to legacy R-410A units.
Heating Efficiency (HSPH)
The updated Low-GWP lineup offers strong heating performance across the board. The Basic series starts at 7.8 HSPF2, while the variable-speed Ultimate Ion 23 reaches up to 10.5 HSPF2, ensuring efficient warmth even during the transition to A2L refrigerants.
Compressor Technology
KeepRite provides a clear technology ladder: the Ion 16 uses a single-stage compressor for value, the Ion 18 moves to a two-stage compressor for better humidity control and efficiency, and the Ion 23 features a top-tier variable-speed inverter for precise temperature management.
Unit Replacement Warranty
KeepRite earns a 3-Star rating due to its "No Hassle Replacement" limited warranty. While parts are covered for 10 years, these specific Ion models provide a 5-to-10-year period where the entire unit is replaced if the compressor or coil fails, offering significantly better protection than standard parts-only warranties.
Exterior Construction
The unit features a durable wire grille design with protective corner posts. While it lacks full louvered panels, the heavy-gauge wire provides high-airflow efficiency and protection against large debris while remaining easy to clean during routine maintenance.
KeepRite Model Comparison
Basic Series: Ion 16 (C5H6S)
Why choose it: An entry-level Low-GWP solution that still qualifies for a 5-year unit replacement warranty. Trade-offs: Single-stage operation lacks the humidity control of the higher-tier models.
Ultimate Series: Ion 23 (C5H3V)
Why choose it: The pinnacle of KeepRite's 2026 tech, featuring an inverter compressor and a 10-year No Hassle Replacement warranty. Trade-offs: Higher initial investment and requires the Ion™ System Control to unlock all variable-speed benefits.
Lennox
★★☆☆☆
Lennox has significantly updated its 2026 residential lineup to transition toward Low-GWP refrigerants like R-454B. This update focuses on maintaining high performance across all tiers, from the budget-friendly Merit series to the ultra-high-efficiency Signature Collection. These specific models—the ML14KP1, XP21, and SL25XPV—were selected to represent the brand's shift toward environmentally compliant cooling and heating solutions that prioritize both efficiency and louvered cabinet durability.
Heating Efficiency (HSPH)
The 2026 Lennox Low-GWP models deliver strong heating performance. The basic ML14KP1 offers a reliable 7.5 HSPF2, while the flagship SL25XPV achieves up to 9.4 HSPF2. This high heating efficiency ensures that homeowners can maintain comfort even during significant temperature drops while minimizing monthly utility costs.
Compressor Technology
Lennox provides a clear step-up in technology across its categories. The Basic tier utilizes a rugged single-stage compressor, the Premium XP21 features a two-stage compressor for improved humidity control and efficiency, and the Ultimate SL25XPV uses a variable-capacity inverter for precise temperature management within 1% of the setpoint.
Unit Replacement Warranty
Lennox is assigned a 2-Star rating (Red) based on its warranty structure. While they provide a standard 10-year parts and compressor warranty, they do not offer a "Unit Replacement" or "No-Hassle" guarantee. In the event of a major failure, the specific component is replaced rather than the entire outdoor unit.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Lennox Model Comparison
Basic Series: ML14KP1
Why choose it: A reliable, entry-level option for those transitioning to Low-GWP refrigerants without the high upfront cost of advanced electronics. Trade-offs: Single-stage operation is less efficient and noisier during startup and shutdown cycles.
Premium Series: XP21
Why choose it: The two-stage compressor allows for better dehumidification and quieter operation on low-stage during milder days. Trade-offs: More expensive than the basic tier while lacking the ultra-precise modulation of an inverter system.
Ultimate Series: SL25XPV
Why choose it: This variable-speed powerhouse offers the highest efficiency and best comfort levels in the Lennox lineup, utilizing the latest Low-GWP tech. Trade-offs: Requires proprietary Lennox communicating controls and represents the highest initial investment.
Liberty
★★★★☆
Liberty's 2026 lineup represents a transition toward sustainable home comfort, featuring new R-32 compliant models like the GLZS5B and GLZT7C. These units were selected to provide homeowners with future-proof solutions that meet the latest environmental regulations while maintaining the heavy-duty reliability Liberty is known for.
Heating Efficiency (HSPH)
The selected 2026 models deliver consistent heating performance with HSPH2 ratings of 8.2. By moving to R-32 refrigerant in the Basic and Premium lines, Liberty ensures these systems operate efficiently even as older refrigerants are phased out.
Compressor Technology
Liberty offers a complete technology ladder: the GLZS5B provides reliable single-stage operation, the GLZT7C introduces two-stage Copeland® UltraTech technology for the Premium tier, and the GSZV9 remains the Ultimate choice with its high-efficiency inverter-driven variable-speed compressor.
Unit Replacement Warranty
Liberty earns a 4-Star rating thanks to the Lifetime Compressor Limited Warranty and 10-Year Unit Replacement protection available on both Premium and Ultimate models. This high level of coverage reflects the brand's confidence in their 2026 hardware updates.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Liberty Model Comparison
Basic Series: GLZS5B
Why choose it: A practical choice for R-32 compliance and solid single-stage performance at a value-oriented price point. Trade-offs: Lacks the enhanced dehumidification and noise reduction found in multi-stage systems.
Premium Series: GLZT7C
Why choose it: Features a two-stage compressor that balances efficiency and comfort, along with a Lifetime Compressor Warranty. Trade-offs: Requires a compatible communicating thermostat to utilize all ComfortBridge diagnostic features.
Ultimate Series: GSZV9
Why choose it: The flagship inverter system offering the highest precision in temperature control and maximum energy savings. Trade-offs: Higher initial cost and currently utilizes the R-410A platform while the brand completes its Ultimate-tier refrigerant transition.
Luxaire
★★★★☆
Following the acquisition of Johnson Controls' residential business by Bosch Home Comfort in 2025, Luxaire has transitioned its catalog to emphasize Low-GWP compliance. The TH4, HL19, and HL20 series represent this new era, utilizing R-454B refrigerant to meet 2026 environmental standards while benefiting from the global engineering scale of the Bosch Home Comfort Group.
Heating Efficiency (HSPH)
Luxaire's 2026 lineup offers strong heating performance across all tiers. The Basic TH4 provides a reliable 8.2 HSPF2, while the Premium HL19 delivers 8.1 HSPF2. The Ultimate HL20 leads the group with a high-efficiency rating of 9.0 HSPF2, ensuring lower operating costs during peak winter months.
Compressor Technology
The lineup follows a strict technology hierarchy: the TH4 uses a single-stage scroll for value, the HL19 features a two-stage scroll for improved humidity control, and the HL20 utilizes an advanced inverter-driven variable-speed compressor for precise temperature modulation and maximum efficiency.
Unit Replacement Warranty
Luxaire earns a 4-Star rating due to its Lifetime Compressor Limited Warranty on the Acclimate™ Series (HL19 and HL20) when registered within 90 days. While the brand does not currently offer a specific Unit Replacement warranty for the entire outdoor section, the lifetime protection on the most critical component provides significant long-term security.
Exterior Construction
The unit features a professional-grade slotted steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Luxaire Model Comparison
Basic Series: TH4
Why choose it: A proven, budget-friendly single-stage system now updated for Low-GWP R-454B compliance, offering a reliable balance of price and performance. Trade-offs: Higher sound levels (approx 75 dBA) and lacks the precise comfort of multi-stage systems.
Ultimate Series: HL20
Why choose it: This flagship variable-speed model offers the highest efficiency and the quietest operation (as low as 54 dBA) in the Luxaire family, fully integrated with Bosch-backed technology. Trade-offs: Requires a communicating Hx™3 thermostat to unlock full variable-speed functionality, resulting in a higher total installation cost.
Mainline
★☆☆☆☆
Mainline has fully transitioned its Elite lineup to R-454B refrigerant for 2026. This update focuses on their high-performance tiers, as the brand has moved away from traditional "Basic" single-stage models in favor of multi-stage and variable-speed technology produced in specialized North American facilities.
Heating Efficiency (HSPH)
The new Low-GWP models deliver competitive efficiency, with the MLP19AY reaching up to 8.5 HSPF2. These ratings ensure steady heating performance while utilizing environmentally responsible R-454B refrigerant.
Compressor Technology
Mainline has bypassed the Basic category for this cycle. The lineup begins with the Premium MLP15AY (Two-Stage) and culminates in the Ultimate MLP19AY, which features an inverter-driven variable-speed compressor for superior comfort and quiet operation.
Unit Replacement Warranty
Mainline offers a 10-year parts warranty, but receives a 1-Star rating due to its limited 3-year unit replacement policy. This coverage is restricted to specific "sealed component" failures and does not offer the full-unit peace of mind found in 4 or 5-star rated brands.
Exterior Construction
These units utilize a heavy-duty wire grille design. While this allows for maximum airflow and easy cleaning of the condensing coils, it provides less physical protection against hail or debris compared to louvered steel panels.
Mainline Model Comparison
Premium Series: MLP15AY Elite
Why choose it: A balanced choice for those wanting Two-Stage comfort and R-454B compliance without the cost of a full inverter system. Trade-offs: Wire grille provides minimal coil protection.
Ultimate Series: MLP19AY Elite
Why choose it: Features top-tier variable-speed technology and ultra-quiet operation (as low as 58 dBA) while meeting all 2026 Low-GWP standards. Trade-offs: High initial investment and limited unit replacement warranty period.
Maytag
★★★★★
Maytag’s 2026 lineup represents a significant transition period following Rheem Manufacturing's acquisition of Nortek Global HVAC (formerly Nordyne). This update focuses exclusively on the PSH4BE and PSH4BF R-454B refrigerant models, which prioritize environmental compliance while maintaining the brand's rugged durability. These units are now produced in the Saltillo, Mexico facility as part of Rheem's global manufacturing strategy.
Heating Efficiency (HSPH)
The 2026 Low-GWP models provide solid performance for the residential market. The PSH4BE series offers a standard 7.5 HSPF2, while the PSH4BF series moves into high-efficiency territory with an 8.1 HSPF2 rating, ensuring reliable heating performance even as the industry moves away from R-410A.
Compressor Technology
The current Maytag lineup is focused on proven mechanical reliability. The Basic PSH4BE utilizes a dependable single-stage compressor, while the Premium PSH4BF features a two-stage compressor for better climate control. Please note that the "Ultimate" variable-speed category has been retired for this brand update as the iQ Drive has been discontinued in the initial R-454B rollout.
Unit Replacement Warranty
Maytag maintains a 5-star rating due to its "Dependability Promise." On the premium M1200 series (PSH4BF), the brand offers a 12-year parts warranty and a standout 12-year unit replacement warranty if the compressor fails. This remains one of the most aggressive consumer protections in the HVAC industry.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Maytag Model Comparison
Basic Series: PSH4BE
Why choose it: A durable, single-stage entry into the new Low-GWP standard that doesn't compromise on the 12-year parts warranty. Trade-offs: Lacks the multi-stage capacity needed for precise dehumidification and quieter low-speed operation.
Premium Series: PSH4BF
Why choose it: Features a two-stage compressor that allows the unit to run at lower speeds during mild weather, increasing comfort and efficiency. Trade-offs: Requires a higher initial investment than the basic model, though offset by the superior 12-year replacement promise.
MRCOOL
★★★★☆
For the 2026 update, MRCOOL has transitioned its Signature Series ducted split systems to the Low-GWP refrigerant R-454B. While MRCOOL is an American-owned company, these specific split-system components are manufactured in China to high quality-control standards. The most significant update for 2026 is the inclusion of a Limited Lifetime Compressor Warranty, making this a standout choice for long-term reliability in the budget-friendly category.
Heating Efficiency (HSPH)
The Signature Series (R-454B) maintains a consistent performance profile with an HSPF2 rating of 7.5. As a standard-efficiency system, it provides reliable heating for regions with moderate winters, though it lacks the extreme cold-climate performance of MRCOOL's side-discharge inverter lines.
Compressor Technology
This model utilizes a high-durability single-stage scroll compressor. Consistent with the brand's simplified split-system strategy, the "Premium" (two-stage) and "Ultimate" (variable-speed) categories are omitted here, as MRCOOL's inverter technology is currently reserved for their side-discharge "Hyper Heat" models which are not part of this ducted-split dataset.
Unit Replacement Warranty
This system achieves a 4-Star rating due to the Lifetime Compressor Warranty provided to the original owner. While it does not include a full unit replacement "Lemon Law" pledge for the first year of ownership, the lifetime protection on the most expensive internal component offers superior long-term security compared to the industry-standard 10-year term.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
MRCOOL Model Comparison
Basic Series: Signature Series (R-454B)
Why choose it: An excellent choice for homeowners prioritizing a strong warranty and a simple, time-tested design using the latest eco-friendly refrigerant. Trade-offs: As a single-stage system, it does not offer the precise humidity control or lower decibel levels of more expensive variable-speed systems.
Oxbox
★ ☆ ☆ ☆ ☆
For the 2026 update, Oxbox has pivoted its ducted lineup to the J5HP5 series, which utilizes the new Low-GWP R-454B refrigerant. This model was selected as the sole representative for the brand as it is currently their primary offering meeting 2026 environmental standards. Oxbox remains focused on the entry-level market, providing a simplified, cost-effective alternative to more complex systems while transitioning away from legacy R-410A equipment.
Heating Efficiency (HSPH)
The J5HP5 series provides a standard efficiency rating of 7.5 HSPH2. This meets the baseline requirements for modern heat pumps, offering reliable heating performance for homeowners in mild-to-moderate climates who prioritize lower upfront equipment costs over maximum energy savings.
Compressor Technology
Oxbox maintains a simplified mechanical design. The J5HP5 features a single-stage scroll compressor. Because Oxbox does not currently offer a 2-stage or variable-speed model in their Low-GWP ducted catalog, both the Premium and Ultimate categories are skipped for this brand update.
Unit Replacement Warranty
Oxbox provides a 10-year registered parts warranty, but their "Unit Replacement Pledge" is limited to only 1 year. This 1-year window for a full unit swap in the event of a major component failure is significantly shorter than the 10-year or lifetime coverage found in higher-rated brands, resulting in its 1-Star rating.
Exterior Construction
The J5HP5 utilizes a durable steel cabinet featuring stamped, slotted panels. While this design protects the internal components, it provides slightly less coil exposure and structural rigidity compared to the professional-grade louvered panels found on premium-tier systems.
Oxbox Model Comparison
Basic Series: J5HP5
Why choose it: A straightforward, budget-conscious choice for those needing a Low-GWP compliant heat pump without the complexity of modern electronics. Trade-offs: Limited to single-stage operation, lower efficiency floor, and a very short 1-year unit replacement window.
Payne
★☆☆☆☆
For 2026, Payne has fully transitioned its core ducted lineup to R-454B refrigerant. The PH5SAN5 and PH8TAN5 models represent the new standard for the brand, prioritizing environmental compliance and affordability in the entry-to-mid-tier market segments.
Heating Efficiency (HSPH)
The updated R-454B models offer reliable heating performance, with the single-stage PH5SAN5 reaching up to 8.1 HSPF2 and the two-stage PH8TAN5 reaching 8.5 HSPF2. These ratings ensure homeowners meet 2026 federal efficiency requirements while utilizing Low-GWP technology.
Compressor Technology
Payne offers a clear progression in technology for 2026. The Basic series uses a reliable single-stage scroll compressor, while the Premium PH8TAN5 utilizes a two-stage compressor that runs on a lower speed for enhanced dehumidification and more consistent temperatures.
Unit Replacement Warranty
Payne maintains a 1-Star rating because its warranty is limited to 10-year parts and compressor coverage. Unlike higher-tier brands, Payne does not offer a Unit Replacement warranty; if a compressor fails, the manufacturer provides the part, but not a replacement outdoor system.
Exterior Construction
These units utilize a heavy-duty galvanized steel cabinet with a tight-wire grille design. While this wire mesh provides standard protection against large debris and ensures maximum airflow for efficiency, it offers less protection against hail or small-object impacts compared to louvered panel designs.
Payne Model Comparison
Basic Series: PH5SAN5
Why choose it: An affordable entry point into Low-GWP heating and cooling that uses a simple, time-tested single-stage design. Trade-offs: Lacks the advanced sound dampening and efficiency of multi-stage systems.
Premium Series: PH8TAN5
Why choose it: Significant upgrade in comfort due to the two-stage compressor, which reduces temperature swings and operates more quietly on low-stage. Trade-offs: Higher initial cost and higher repair complexity than single-stage models.
Rheem
★★★☆☆
Rheem’s 2026 Endeavor™ Line represents a complete transition to R-454B Low-GWP refrigerant. This update focuses on the RP16AZ and RP19AY models, which utilize advanced compressor technology to meet strict EPA mandates. Rheem has eliminated single-stage "Basic" options for this series, focusing instead on high-performance multi-stage and variable-speed systems.
Heating Efficiency (HSPH)
The 2026 Low-GWP models offer significant efficiency gains. The Premium RP16AZ delivers an 8.1 HSPF2, while the flagship Ultimate RP19AY reaches up to 8.5 HSPF2. These ratings ensure high-performance heating even as the industry shifts away from R-410A.
Compressor Technology
The "Basic" category is skipped as Rheem does not offer a single-stage R-454B model in this tier. The RP16AZ serves as the Premium choice with its sophisticated three-stage/variable-lite inverter technology. The Ultimate RP19AY features a fully variable-speed scroll compressor capable of modulating from 40% to 100% capacity for maximum precision.
Unit Replacement Warranty
Rheem maintains a 3-Star rating due to its 10-year Parts Warranty and 10-year Conditional Unit Replacement. If the compressor fails within the first decade, Rheem provides a replacement outdoor unit rather than just a part swap, provided the system was registered within 60 days of installation.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Rheem Model Comparison
Premium Series: RP16AZ
Why choose it: Offers a more accessible path to high-efficiency cooling and heating with R-454B refrigerant. Its three-stage operation provides superior humidity control and quieter performance than traditional equipment. Trade-offs: Slightly lower heating efficiency (HSPF2) compared to the Ultimate series.
Ultimate Series: RP19AY
Why choose it: The pinnacle of the Endeavor Line, featuring a fully variable-speed inverter and EcoNet® smart diagnostics. It is designed for homeowners who want the highest efficiency ratings and the most consistent indoor temperatures available. Trade-offs: Highest upfront equipment cost in the Rheem catalog.
Run Tru
★☆☆☆☆
Run Tru has updated its 2026 lineup to meet new environmental standards by transitioning to R-454B Low-GWP refrigerant. As the value-focused brand in the Trane Technologies family, Run Tru offers a budget-conscious entry point into the new refrigerant standard while maintaining a simplified, American-made design.
Heating Efficiency (HSPH)
The A5HP5 model represents the top of the brand's basic tier, delivering a 15.2 SEER2 and an 8.1 HSPF2 rating. This efficiency level provides a cost-effective solution for standard heating and cooling needs while complying with the latest federal mandates.
Compressor Technology
This model features a reliable single-stage scroll compressor, designed for homeowners who prefer straightforward mechanical components over complex electronics. Because Run Tru focuses exclusively on this budget-friendly single-stage platform, the Premium and Ultimate categories are skipped for this brand update.
Unit Replacement Warranty
Run Tru is assigned a 1-Star rating because its warranty is limited to 10-year registered parts and compressor coverage. It does not include a "No-Hassle" Unit Replacement guarantee; if the compressor fails, only the part is replaced, not the entire outdoor unit.
Exterior Construction
Assembled in the USA, the unit features a galvanized steel cabinet with a durable powder-paint finish and slotted (stamped) steel panels. While functional, these slotted panels provide less physical protection for the condensing coils against hail or lawn debris compared to the louvered designs found on premium systems.
Run Tru Model Comparison
Basic Series: A5HP5
Why choose it: An ideal choice for those seeking the lowest upfront cost for an American-made system that is fully compliant with 2026 Low-GWP refrigerant regulations. Trade-offs: Limited to single-stage performance and basic slotted-panel protection with no unit replacement warranty.
Russell
★ ★ ★ ☆ ☆
The 2026 Russell by Rheem lineup has transitioned to the Vantix™ line, focusing on Low-GWP R-454B refrigerant to meet modern environmental standards. We have selected the SP15AY and SP19AY models for this update as they represent the brand's shift toward high-efficiency, EcoNet-enabled technology while phasing out legacy R-410A equipment.
Heating Efficiency (HSPH)
Russell’s Low-GWP models deliver solid heating performance, with the Premium SP15AY reaching 8.1 HSPF2 and the Ultimate SP19AY achieving up to 8.5 HSPF2. These ratings ensure efficient operation during the heating season while utilizing a more sustainable refrigerant.
Compressor Technology
The brand focuses on multi-stage performance; the Premium SP15AY utilizes a two-stage scroll compressor for better load matching, while the Ultimate SP19AY features a fully variable-speed scroll compressor and inverter drive. Note: A "Basic" single-stage category is not offered in the current 2026 residential lineup for this brand.
Unit Replacement Warranty
Russell earns a 3-Star rating primarily due to the 10-year Conditional Unit Replacement warranty provided on the Ultimate series (SP19AY). While the entire line carries a 10-year parts warranty, the lack of a lifetime compressor option or a 12-year replacement period keeps it in the yellow-card tier.
Exterior Construction
The unit features a professional-grade wire grille cabinet. This design is engineered for maximum airflow and easy service access to the condensing coils, though it offers less physical protection against small debris than a louvered panel design.
Russell Model Comparison
Premium Series: SP15AY
Why choose it: A balanced choice for those wanting two-stage comfort and R-454B compliance without the higher cost of an inverter system. Trade-offs: Uses a wire grille instead of louvered panels and lacks the advanced variable-speed efficiency of the Ultimate line.
Ultimate Series: SP19AY
Why choose it: This is Russell's top-tier EcoNet-enabled model, offering precise variable-speed cooling/heating and a 10-year unit replacement warranty. Trade-offs: Higher initial cost and requires a specific smart thermostat to utilize its full modulation range.
Ruud
★★★☆☆
Ruud has fully transitioned its Endeavor™ Line to lead the industry's shift toward Low-GWP refrigerants. For this update, we have focused on the RP15AY and UP19AY models, which utilize R-454B refrigerant. These units are engineered and assembled in North America, continuing Ruud's legacy of domestic manufacturing while meeting the rigorous 2026 EPA environmental mandates.
Heating Efficiency (HSPH)
The selected Low-GWP models provide strong heating performance across both tiers. The RP15AY (Premium) offers a reliable 8.1 HSPF2, while the UP19AY (Ultimate) achieves top-tier efficiency with ratings up to 10.0 HSPF2, ensuring consistent warmth and significant energy savings in colder climates.
Compressor Technology
Ruud's 2026 lineup is streamlined into high-performance tiers. The Premium series utilizes a reliable two-stage scroll compressor for balanced comfort and superior humidity control. The Ultimate series features a fully variable-speed inverter compressor, allowing the system to modulate capacity between 40% and 100% to match the home's heating load with extreme precision. Note: A Basic (single-stage) Low-GWP model is not currently offered in this primary 2026 selection.
Unit Replacement Warranty
Ruud earns a 3-Star rating due to its "Peace-of-Mind Performance" warranty. These models come with a 10-year parts warranty and a 10-year Conditional Unit Replacement warranty. This means if the compressor fails within the first 10 years, Ruud provides a completely new outdoor unit rather than just a replacement part.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Ruud Model Comparison
Premium Series: Endeavor RP15AY
Why choose it: This model offers the benefits of R-454B refrigerant and two-stage operation, providing a significant step up from standard systems in terms of efficiency and comfort. Trade-offs: Does not feature the fully modulating inverter technology found in the Ultra series.
Ultimate Series: Endeavor UP19AY
Why choose it: The pinnacle of the Low-GWP lineup, featuring a variable-speed inverter for maximum efficiency and whisper-quiet operation. Trade-offs: Requires a higher initial investment and full EcoNet® smart home integration for optimal performance.
Sure Comfort
★★★☆☆
Sure Comfort's 2026 Vantix™ lineup leads with the transition to R-454B refrigerant, a sustainable Low-GWP alternative. For this update, we have highlighted the SP5AY and SP19AY models, which represent the brand's pivot away from legacy refrigerants toward high-performance, environmentally compliant technology.
Heating Efficiency (HSPH)
The selected Low-GWP models provide efficient heating performance, with the SP19AY reaching up to 8.5 HSPH2. These ratings ensure that the move to eco-friendly refrigerants does not compromise the unit's ability to lower winter utility costs.
Compressor Technology
This brand focuses on multi-stage performance; the SP5AY offers Two-Stage compression for balanced comfort, while the Ultimate SP19AY features a Variable-Speed Inverter. Note that a "Basic" single-stage Low-GWP model is currently excluded from the residential split-system catalog.
Unit Replacement Warranty
Sure Comfort earns a 3-star rating by providing a 10-Year Unit Replacement warranty on these specific models. If the compressor fails within the first 10 years (with registration), the brand replaces the entire outdoor unit rather than just the component.
Exterior Construction
The unit features a modern, high-strength wire grille design. While it provides open airflow for maximum cooling efficiency and is easier to clean, it offers less physical protection against small debris compared to traditional louvered steel panels.
Sure Comfort Model Comparison
Premium Series: SP5AY
Why choose it: Offers superior humidity control and consistent temperatures via two-stage cooling and heating, all while utilizing new Low-GWP refrigerant. Trade-offs: The wire grille design leaves the coil more vulnerable to hail or yard debris than louvered alternatives.
Ultimate Series: SP19AY
Why choose it: The flagship model featuring an inverter-driven compressor for maximum efficiency and whisper-quiet operation. Trade-offs: Higher initial cost and the necessity of specialized installation for the variable-speed communication system.
Tempstar
★★★☆☆
For 2026, Tempstar has transitioned its Ion™ series to R-454B refrigerant to meet new environmental standards. These models represent the brand's shift toward low-GWP technology. While performance is high, the brand is assigned a 3-star rating because it lacks the lifetime compressor warranty or the uniform 10-year unit replacement across all tiers required for a green card status.
Heating Efficiency (HSPH)
The 2026 Ion™ models provide reliable heating efficiency. The Ion 16 offers a baseline of 7.8 HSPH2, while the variable-speed Ion 23 reaches up to 10.5 HSPH2, ensuring cost-effective operation in colder climates using the new R-454B refrigerant.
Compressor Technology
This lineup features a clear technology progression: a single-stage scroll for the Basic series, a two-stage compressor for the Premium series to improve dehumidification, and a high-efficiency variable-speed inverter for the Ultimate series.
Unit Replacement Warranty
Tempstar's rating is limited to 3 stars due to its tiered warranty structure. While the Premium and Ultimate models offer a 10-year No Hassle Replacement™ warranty, the Basic model is limited to 5 years. Without a lifetime compressor warranty or a minimum of 10 years across the entire line, it does not meet the higher-star criteria.
Exterior Construction
The units are built with a durable cabinet featuring a tight wire grille and protective corner posts. This design is engineered to maximize airflow for high-efficiency heat exchange while shielding the internal coils from heavy debris and weather-related impact.
Tempstar Model Comparison
Basic Series: Ion 16 T5H6S
Why choose it: A reliable, communicating entry-point into the 2026 R-454B standard that includes a 5-year No Hassle Replacement warranty. Trade-offs: Single-stage operation lacks the precision climate control of the higher-tier inverter units.
Ultimate Series: Ion 23 T5H3V
Why choose it: Features SmartSense™ technology for maximum efficiency and a 10-year No Hassle Replacement warranty. Trade-offs: Higher initial investment and requires the Ion™ System Control for full functionality.
Thermal Zone
★☆☆☆☆
Thermal Zone has updated its 2026 lineup to meet new EPA regulations by transitioning exclusively to R-454B Low-GWP refrigerant. The selection of the TZP14AY model for this update reflects the brand's shift toward sustainable, high-efficiency equipment that complies with the latest environmental standards while maintaining its reputation for contractor-grade reliability.
Heating Efficiency (HSPH)
The TZP14AY series achieves an HSPF2 (HSPH) rating of 7.6. This performance level ensures that the new Low-GWP models provide consistent heat output and energy savings throughout the winter, meeting the updated Department of Energy requirements for the 2026 season.
Compressor Technology
Thermal Zone focuses on the Premium category with the TZP14AY, utilizing a two-stage compressor. This allows the unit to operate at a lower capacity for enhanced dehumidification and efficiency during milder days, only using full power when temperatures drop significantly. Because the brand currently emphasizes this two-stage model for its Low-GWP transition, the Basic and Ultimate categories have been skipped.
Unit Replacement Warranty
This model is backed by a 10-year parts and compressor warranty. However, because Thermal Zone does not offer a Unit Replacement warranty (which provides a new outdoor unit in the event of a major component failure), the brand receives a 1-Star rating under our standardized evaluation logic.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Thermal Zone Model Comparison
Premium Series: TZP14AY
Why choose it: Choose this model if you want a 2026-ready system that offers better humidity control and efficiency than a basic single-stage unit without the cost complexity of a variable-speed inverter. Trade-offs: The lack of a lifetime compressor or unit replacement warranty means homeowners have less long-term protection compared to higher-rated brands.
Trane
★★☆☆☆
Trane has modernized its 2026 catalog to lead with R-454B, a sustainable Low-GWP refrigerant that significantly reduces environmental impact compared to legacy R-410A systems. The 15 Single-Stage, XR16 Two-Stage, and 20 TruComfort models were selected for this update as they represent Trane's new "Tested to the Extreme" standard for 2026, offering homeowners a future-proof investment that meets the latest federal environmental regulations.
Heating Efficiency (HSPH)
Trane's 2026 Low-GWP heat pumps deliver exceptional heating performance. The Basic 15 series achieves up to 8.5 HSPF2, while the flagship 20 TruComfort variable-speed system reaches an impressive 10.5 HSPF2. These ratings ensure high-efficiency heating even as outdoor temperatures drop, reducing reliance on backup heat sources.
Compressor Technology
Trane utilizes their legendary Climatuff™ compressors across all tiers. The Basic series features a reliable single-stage design for straightforward operation. The Premium XR16 provides a two-stage compressor for better humidity control, while the Ultimate 20 TruComfort uses a fully variable-speed inverter that adjusts in 1/10 of 1% increments for pinpoint temperature precision.
Unit Replacement Warranty
Trane receives a 2-Star rating because while they offer a strong 10-year registered parts warranty and an industry-leading 12-year compressor warranty on their Ultimate series, they do not provide a standard unit replacement (lemon law) guarantee if a major component fails. Per the 2026 logic, the lack of a unit replacement period keeps the brand in the red category.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Trane Model Comparison
Basic Series: 15 Single-Stage
Why choose it: A durable and cost-effective entry into the R-454B platform, offering high build quality and simple maintenance. Trade-offs: Single-stage operation leads to more frequent cycling and less consistent indoor humidity removal.
Premium Series: XR16
Why choose it: The two-stage compressor provides a noticeable jump in comfort by running at lower speeds during mild weather, reducing noise and energy spikes. Trade-offs: Lacks the extreme efficiency and ultra-quiet operation of the inverter-driven Ultimate models.
Ultimate Series: 20 TruComfort
Why choose it: Trane's premier Low-GWP model, featuring a variable-speed inverter for maximum energy savings and a 12-year compressor warranty. Trade-offs: Highest initial equipment cost and requires the Trane Link™ communicating system for full feature access.
Weatherking
★☆☆☆☆
The 2026 Weatherking lineup marks a significant transition to R-454B refrigerant, aligning with new environmental regulations for Low-GWP (Global Warming Potential) systems. We have selected the WP14AY and WP15AY models for this update as they represent the brand's core commitment to providing compliant, entry-level to mid-tier efficiency solutions for homeowners seeking value without sacrificing modern refrigerant standards.
Heating Efficiency (HSPH)
The selected Low-GWP models deliver reliable performance with HSPH2 ratings ranging from 7.5 on the Basic WP14AY series to 8.1 on the Premium WP15AY series. These ratings ensure steady heating performance in moderate climates while meeting 2026 efficiency mandates.
Compressor Technology
Weatherking provides a clear distinction between tiers. The Basic series utilizes reliable single-stage scroll compressors, while the Premium WP15AY upgrades to a two-stage scroll compressor for improved humidity control and quieter operation. Note: The Ultimate category is currently skipped as the brand does not offer a variable-speed inverter model in this 2026 update.
Unit Replacement Warranty
While Weatherking offers a solid 10-year parts and compressor warranty upon registration, the lack of a "Unit Replacement" provision for failed compressors results in a 1-Star rating under our strict 2026 evaluation criteria.
Exterior Construction
The unit features a professional-grade louvered steel cabinet. This design provides superior protection for the condensing coils against debris, hail, and accidental damage compared to open wire-frame guards.
Weatherking Model Comparison
Basic Series: WP14AY
Why choose it: A budget-friendly way to enter the R-454B era, offering standard 14.3 SEER2 efficiency and a rugged louvered cabinet. Trade-offs: Single-stage operation lacks the precise temperature control found in higher-tier units.
Premium Series: WP15AY
Why choose it: Features a two-stage compressor that provides enhanced comfort and higher 8.1 HSPH2 heating efficiency while maintaining R-454B compliance. Trade-offs: Higher upfront cost than the Basic series and lacks a unit replacement warranty.
Weathermaker
★☆☆☆☆
Weathermaker's 2026 lineup is defined by the transition to R-454B (Puron Advance™) refrigerant, providing a significant reduction in Global Warming Potential to meet new environmental mandates. These specific models, PH5SAN5 and PH8TAN5, were selected for this update as they represent the brand's current Low-GWP offerings, replacing legacy R-410A systems with technology designed for the 2026 regulatory landscape.
Heating Efficiency (HSPH)
The 2026 Low-GWP models maintain dependable efficiency ratings under the new M1 testing standards. The Basic PH5SAN5 series delivers up to 7.8 HSPH2, while the Premium PH8TAN5 series offers an improved 8.1 HSPH2, ensuring reliable heating performance for value-conscious applications.
Compressor Technology
The updated Weathermaker catalog follows a clear performance tiering. The Basic series utilizes a reliable single-stage scroll compressor for straightforward operation. The Premium series employs a two-stage compressor that allows the system to run at lower speeds during milder weather for improved comfort and dehumidification. Currently, there is no variable-speed Ultimate model available in this ducted residential update.
Unit Replacement Warranty
The assigned 1-Star rating reflects the brand's standard warranty structure. While providing a 10-year parts limited warranty upon registration, the "No Hassle" unit replacement pledge is limited to 1 year. Under our 2026 rating criteria, this 1-year window for a full outdoor unit replacement results in a red-tier 1-star classification.
Weathermaker Model Comparison
Basic Series: PH5SAN5
Why choose it: An affordable, entry-level solution for homeowners migrating to Low-GWP R-454B refrigerant. Trade-offs: Single-stage operation lacks the precision and noise reduction of higher-tier multi-stage units.
Premium Series: PH8TAN5
Why choose it: Offers superior indoor comfort through two-stage compressor technology while meeting all 2026 environmental standards. Trade-offs: Higher upfront cost than the basic series and lacks the full modulation of variable-speed systems.
York
★★★★☆
Following the 2025 acquisition by the Bosch Home Comfort Group, York has integrated world-class engineering resources to lead the 2026 transition to R-454B low-GWP refrigerant. This updated lineup—featuring the YH2E, YH6, and YZV—combines York’s historic American manufacturing legacy with Bosch’s global expertise in sustainable climate technology.
Heating Efficiency (HSPH)
HSPF2 ratings for the selected models range from a baseline of 7.5 on the YH2E to an impressive 9.0 on the YZV variable-speed system. These ratings reflect York’s ability to maintain high heating performance even as the industry moves away from legacy high-GWP refrigerants.
Compressor Technology
The lineup spans the full technical spectrum: the YH2E provides reliable single-stage operation, the YH6 offers two-stage capacity for better humidity management, and the Ultimate-tier YZV features a fully modulating inverter compressor for precise temperature maintenance.
Unit Replacement Warranty
While the YH2E and YH6 carry the standard 10-year parts and compressor protection, the YZV is elevated to a 4-Star rating due to its Lifetime Compressor Limited Warranty, offering significant long-term peace of mind for the primary system component.
Exterior Construction
The unit features a professional-grade cabinet made of extruded slotted panels. This heavy-gauge steel design provides robust protection for the condensing coils against hail and debris while ensuring optimal airflow and structural integrity.
York Model Comparison
Basic Series: YH2E
Why choose it: A dependable entry point into the low-GWP 2026 standard, utilizing the LX series chassis known for easy serviceability. Trade-offs: Single-stage operation lacks the nuanced comfort control of multi-stage units.
Premium Series: YH6
Why choose it: Features two-stage performance with R-454B refrigerant, providing a significant balance between energy efficiency and upfront cost. Trade-offs: Does not include the lifetime compressor protection found in the Ultimate tier.
Ultimate Series: YZV
Why choose it: Top-tier inverter technology combined with a Lifetime Compressor Warranty and high-performance low-GWP cooling/heating. Trade-offs: Higher initial investment and requires a proprietary communicating thermostat for full functionality.
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Meet the Expert: Richard Reed
HVAC Specialist & Founder of HVAC For Beginners
Richard Reed (known online as HvacRepairGuy) brings over 17 years of specialized HVAC industry experience.
Starting as an electrician in nuclear power before completing a 4-year HVAC service apprenticeship and running his own contracting business,
Richard offers a unique perspective that combines electrical expertise with deep mechanical knowledge.
His mission is to provide unbiased, "repairman's point of view" insights into energy conservation and alternative energy solutions.
