These reviews are for geothermal systems that combine the compressor section and blower section into one compact package that is connected to the home's duct system. 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 HvacRepairgGuy. If the card is red, then, the brand is not recommended by HvacRepairGuy. With our air conditioner reviews you can cut through the sales
hype and find value. It truly is like you were taking a repairman shopping with you!
Arcoaire
★★★★☆
Arcoaire, manufactured by International Comfort Products (ICP) under the Carrier Global umbrella, has transitioned its 2026 lineup to utilize R-454B Low-GWP refrigerant. This update focuses on the HCR Ion™ Series, which replaces legacy R-410A models to meet new environmental standards while maintaining high-performance cooling and heating. These systems are engineered and built in the USA at specialized manufacturing facilities in Lewisburg, Tennessee.
Efficiency (EER/COP)
The HCR model features a Closed Loop EER of 27.0 and a COP of 4.6. Based on EER-based category enforcement, this unit is classified as a Premium geothermal system, as it falls within the 20–29 EER range.
Compressor Technology
This model utilizes an advanced variable-speed compressor. By modulating its capacity to match the home's exact needs, the compressor technology directly supports the high 27.0 EER rating and ensures consistent indoor comfort.
Warranty & Reliability
Arcoaire receives a 4-Star rating due to its 10-year parts and 10-year compressor limited warranties. It also includes a 5-year No Hassle Replacement™ limited warranty, which provides a complete unit replacement if the compressor or coil fails within the first five years.
Indoor Construction
Built for indoor longevity, these units feature heavy-gauge steel cabinets and advanced sound insulation to ensure quiet operation within the home environment.
Arcoaire Model Comparison
Premium: HCR Ion™ (R-454B)
Why choose it: Delivers high-efficiency performance with a 27.0 EER and full compliance with 2026 Low-GWP refrigerant standards. Trade-offs: While highly efficient, it does not reach the 30+ EER threshold required for the Ultimate category.
Bosch
★★★☆☆
Bosch has proactively transitioned its 2026 geothermal lineup to the Low-GWP refrigerant R-454B, with the Greensource RP and CDi SM series serving as their flagship residential solutions. These specific models were selected for their balanced approach to modern environmental standards and high-efficiency performance in existing footprints.
Efficiency (EER/COP)
The Bosch lineup delivers strong performance across two tiers. The Greensource RP Series achieves a 29.7 EER (Premium), while the Greensource CDi SM pushes efficiency into the Ultimate category with an EER of 30.5. Both systems maintain high COP ratings, ensuring efficient heating even in colder climates.
Compressor Technology
Both the RP and SM models utilize two-stage scroll compressor technology. This design supports their high EER ratings by allowing the systems to operate at 65-70% capacity during mild weather, significantly reducing energy consumption and noise while providing more consistent humidity control.
Warranty & Reliability
Bosch provides a solid 10-year limited warranty on both parts and the compressor. However, because the brand does not currently offer a dedicated unit replacement guarantee for equipment failure, it receives a 3-star rating under the 2026.3 criteria.
Indoor Construction
Built for indoor longevity, these units feature heavy-gauge steel cabinets and advanced sound insulation to ensure quiet operation within the home environment.
Bosch Model Comparison
Premium: Greensource RP Series (R-454B)
Why choose it: Exceptional Premium-tier EER efficiency and full Low-GWP compliance with R-454B at a more accessible price point than the SM series. Trade-offs: Lacks a unit replacement warranty compared to some competitors in the same tier.
Ultimate Series (30+ EER): Greensource CDi SM (R-454B)
Why choose it: Maximum efficiency levels exceeding 30 EER and enhanced noise dampening through optimized internal components. Trade-offs: Higher initial investment cost and slightly larger footprint for certain tonnage sizes.
Bryant Geothermal
★★★☆☆
Bryant has updated its flagship geothermal line to the Evolution™ GCA, utilizing Puron Advance™ (R-454B) to meet 2026 Low-GWP requirements. While often perceived as a "premium" alternative to its sister brand Carrier, our data update confirms that Bryant’s specialized "Red Shield" unit replacement warranty does not extend to its geothermal equipment, placing it in our budget-friendly 'Premium' category.
Efficiency (EER/COP)
The Evolution™ GCA provides a Closed Loop EER of 27.0 and a COP of 4.4. This performance level qualifies the unit for a Premium ranking. While it lacks the 30+ EER required for an 'Ultimate' rating, it remains a highly efficient choice for the transition to more environmentally friendly refrigerants.
Compressor Technology
The GCA model features a two-stage scroll compressor. This allows the system to operate at a lower capacity during mild weather to save energy and switch to full capacity only when extreme temperatures demand it, supporting the system's overall efficiency and dehumidification performance.
Warranty & Reliability
This unit receives a 3-Star rating because it offers a standard 10-year parts and 10-year compressor warranty but lacks a unit replacement guarantee. While Bryant’s air-source units often include the Red Shield™ replacement plan, the geothermal line is restricted to a standard repair-or-replace component policy.
Indoor Construction
Built for indoor longevity, these units feature heavy-gauge steel cabinets and advanced sound insulation to ensure quiet operation within the home environment.
Bryant Model Comparison
Premium Series: Evolution™ GCA (R-454B)
Why choose it: Proven two-stage reliability and full compliance with 2026 Low-GWP standards using R-454B. Trade-offs: Lacks the unit replacement protection found in Bryant’s air-source Evolution lines.
Basic Series: Legacy™ GBA (R-454B)
Why choose it: A more affordable entry point into geothermal that still utilizes the new Low-GWP refrigerant. Trade-offs: Lower EER ratings and simplified blower technology.
Carrier Geothermal
★★★☆☆
Carrier has pivoted its geothermal lineup toward sustainability with the introduction of Puron Advance™ (R-454B). We have selected the Infinity® GCA as the primary representative for this update, as it balances Carrier's most advanced variable-speed communication logic with the industry's shift toward Low-GWP refrigerants, ensuring long-term compliance and parts availability.
Efficiency (EER/COP)
The Infinity® GCA delivers a Closed Loop EER of up to 27.0 and a COP of 4.4. Based on our 2026 enforcement logic, this places the unit firmly in the Premium category. While its Open Loop ratings are significantly higher, the Closed Loop performance provides a realistic benchmark for most residential installations.
Compressor Technology
This model utilizes a high-efficiency variable-speed compressor. This technology supports the Premium EER rating by allowing the system to scale its output down to a fraction of its capacity, maintaining precise temperature control without the energy spikes associated with frequent cycling.
Warranty & Reliability
Carrier provides a 10-year parts and 10-year compressor limited warranty upon timely registration. Because this specific line does not currently include a standard unit replacement guarantee for compressor failures, it is assigned a 3-Star rating. This reflects solid long-term protection but falls short of the "Ultimate" reliability tier.
Indoor Construction
Built for indoor longevity, these units feature heavy-gauge steel cabinets and advanced sound insulation to ensure quiet operation within the home environment.
Carrier Model Comparison
Premium Series: Infinity® GCA (R-454B)
Why choose it: Leading-edge EER efficiency and full Low-GWP compliance with Puron Advance™ refrigerant. Trade-offs: Higher upfront equipment cost and requires Infinity-specific controls for full functionality.
Ultimate Series (30+ EER): Infinity® GCA Inverter
Why choose it: Maximum efficiency via advanced inverter-driven technology, capable of exceeding 30+ EER in specific configurations. Trade-offs: Extremely sensitive to loop design and requires a certified Carrier expert for complex calibration.
CENTURY
★ ★ ★ ☆ ☆
This brand is assembled in the USA by Climatemaster for Heat Controller which is a part of MARS. The units feature intelligent controls with a gateway to display operational
and diagnostic data on a communicating thermostat. They have two stage scroll compressors as well as a variable speed fans and loop pumps for added energy savings and durable
stainless steel drain pans that eliminate the problem of rust. They offer an option where all of the water circulation components are built into the unit so it is easier to
install. The units are backed by a good guarantee but they are only sold through authorized dealers in the USA. They use R410a refrigerant which is not as environmentally
friendly as brands that use R32 and they only use standard 1 inch filters which do not do as good of a job of cleaning the air as brands that use two inch. The HE-Series models
have a 21.7 EER efficiency and are for either up flow or horizontal installation while the HZ-Series models can also be installed in down flow applications and have a 26.4 EER
efficiency. The brand does not offer models that qualify for the HvacRepairGuy basic and ultimate categories.
CLIMATEMASTER
★ ★ ★ ☆ ☆
This brand is a member of Nibe Group and the units are available through dealers in the USA & Canada but they only have an average guarantee when compared to other brands.
All of the units have a stainless steel drain pan, and coated air coils for durability as well as micro-channel aluminum coils that resist corrosion. They use R410a
refrigerant which is not as environmentally friendly as R32. The TRILOGY 45 series units are variable capacity units with an inverter compressor, variable speed fan and a
variable speed loop circulation pump for added energy savings and an industry leading 45 EER efficiency. They also feature advanced iGate controls for system monitoring and
diagnostics that are Wi-Fi enabled. They offer models with full time domestic hot water production (QE) as well as units without (VE). The TRANQUILITY range offers premium
single or two stage units but do not have dedicated full time domestic hot water generation. The Tranquility 20 TS models are their most basic (low-priced) units but they
still have a 21.9 EER efficiency with most of the features found on the premium models from other brands.
COMFORT-AIRE
★ ★ ★ ☆ ☆
This brand is assembled in the USA by Climatemaster for Heat Controller which is a part of MARS. The units feature intelligent controls with a gateway to display operational
and diagnostic data on a communicating thermostat. They have two stage scroll compressors as well as a variable speed fan and loop pump for added energy savings and durable
stainless steel drain pans that eliminate the problem of rust. They offer an option where all of the water circulation components are built into the unit so it is easier to
install. The units are backed by a good guarantee but they are only sold through authorized dealers in the USA. They use R410a refrigerant which is not as environmentally
friendly as brands that use R32 and they only use standard 1 inch filters which do not do as good of a job of cleaning the air as brands that use two inch. The HE-Series
models have a 21.7 EER efficiency and are for either up flow or horizontal installation while the HZ-Series models can also be installed in down flow applications and have a
26.4 EER efficiency. The brand does not offer models that qualify for the HvacRepairGuy basic and ultimate categories.
COMFORTMAKER
★ ★ ★ ★ ☆
This brand is from Carrier and is only available through authorized dealers in the USA and Canada. The units feature corrosion resistant coils and two inch MERV8 filters to clean
the home's air. They offer an optional domestic hot water package and are backed by a good guarantee but they use R410a refrigerant which is not as earth friendly as brands
that use R32. The Performance Series HB models are premium units with a single stage compressor and constant torque blower motor. They have a 21.7 EER efficiency while the
QuietComfort Series HP models have a two stage compressor, variable speed blower motor, and a 24.5 EER efficiency rating. The HP models have a compressor blanket for quieter
operation and a five year No Hassle guarantee where the entire unit is replaced if the compressor or coils fail within five years of installation. The brand does not offer models
that qualify for the HvacRepairGuy basic and ultimate categories.
DAY & NIGHT
★ ★ ★ ★ ☆
This brand is from Carrier and is only available through authorized dealers in the USA and Canada. The units feature corrosion resistant coils and two inch MERV8 filters to clean
the home's air. They offer an optional domestic hot water package and are backed by a good guarantee but they use R410a refrigerant which is not as earth friendly as brands
that use R32. The Performance Series HB models are premium units with a single stage compressor and constant torque blower motor. They have a 21.7 EER efficiency while the
QuietComfort Series HP models have a two stage compressor, variable speed blower motor, and a 24.5 EER efficiency rating. The HP models have a compressor blanket for quieter
operation and a five year No Hassle guarantee where the entire unit is replaced if the compressor or coils fail within five years of installation. The brand does not offer models
that qualify for the HvacRepairGuy basic and ultimate categories.
GEOCOMFORT
★ ★ ★ ★ ★
This brand is made in the USA by Enertech Global LLC and is only sold through their dealer network. All of the units feature aluminum micro-channel air coils to eliminate
corrosion and a composite anti-microbial drain pan to inhibit mold growth. They are very quiet due to their quadruple compressor isolation system and variable speed fan
motors. They feature Copeland UltraTech compressors, appliance grade cabinets and standard domestic hot water assist to lower the home's water heating costs. The standard
warranty on the units is very good and can even be improved with the purchase of an optional 18 year extension on the coils and compressor. The Navigator YT models are
ultimate heat pumps for upflow installation with a 31.1 EER efficiency and integrated Wi-Fi control through their Epic Connected Control and it's associated myUplink app.
The control allows for energy usage monitoring from anywhere as well as water temperatures and faults in the system. The Element VS/VT premium models are more compact for
upflow installation in tight spaces and has a 27.2 EER rating. The Element ZS/ZT premium heat pumps are compact horizontal units that are available with either single or
two stage compressors and a 29.8 EER efficiency. The premium Compass CT models provide hot water for radiant floor heating systems as well as standard air heating and
cooling. They have two stage compressors with a 27.3 EER efficiency. The Compass XT models are premium heat pumps with a 24.9 EER efficiency. The brand uses basic one inch
filters which is not as good at cleaning the air as many other brands and they do not offer a model that qualifies for the HvacRepairGuy basic category for the price
conscious market.
GEOCOOL
★ ★ ★ ☆ ☆
This brand is a part of MR COOL and is available through dealers in the USA. The GC-01 models feature two stage compressors with variable speed blower motors for quiet and
efficient operation. They are premium heat pumps that are available in upflow, downflow, or horizontal models and have a 20.7 EER efficiency. The units use standard one
inch filters which are not as good at cleaning the air as some of the other brands and they use R410a refrigerant which is not as environmentally friendly as R32. The units
are made in America and are backed by a good warranty.
GEOSTAR
★ ☆ ☆ ☆ ☆
These units are made by Water Furnace International and feature scroll compressors and stainless steel heat exchangers for durability. They are all basic units that have all
aluminum air coils for corrosion resistance and offer optional domestic hot water production. The units feature two stage scroll compressors with variable speed blowers
for quiet and efficient operation but they use R410a refrigerant which is not as environmentally friendly as R32. They have MERV 11 filters to clean the air but the
standard warranty on the units is well below the industry normal and they are only available through their dealer network. The Magnolia Plus heat pumps have a 15.6 EER
efficiency while the Aston & Aston Advanced Series units have a 19.6 EER. The Cypress models provide hot water for radiant floor heating as well as normal heating & cooling
with an 18.7 EER efficiency. The brand does not offer models that qualify for the HvacRepairGuy premium and ultimate categories.
HEIL
★ ★ ★ ★ ☆
This brand is from Carrier and is only available through authorized dealers in the USA and Canada. The units feature corrosion resistant coils and two inch MERV8 filters to clean
the home's air. They offer an optional domestic hot water package and are backed by a good guarantee but they use R410a refrigerant which is not as earth friendly as brands
that use R32. The Performance Series HB models are premium units with a single stage compressor and constant torque blower motor. They have a 21.7 EER efficiency while the
QuietComfort Series HP models have a two stage compressor, variable speed blower motor, and a 24.5 EER efficiency rating. The HP models have a compressor blanket for quieter
operation and a five year No Hassle guarantee where the entire unit is replaced if the compressor or coils fail within five years of installation. The brand does not offer models
that qualify for the HvacRepairGuy basic and ultimate categories.
HYDRON MODULE
★ ★ ★ ★ ★
This brand is made in the USA by Enertech Global LLC and is only sold through their dealer network. All of the units feature aluminum micro-channel air coils to eliminate
corrosion and a composite anti-microbial drain pan to inhibit mold growth. They are very quiet due to their quadruple compressor isolation system and variable speed fan
motors. They feature Copeland UltraTech compressors, appliance grade cabinets and standard domestic hot water assist to lower the home's water heating costs. The standard
warranty on the units is very good and can even be improved with the purchase of an optional 18 year extension on the coils and compressor. The Revolution2 YT models are
ultimate heat pumps for upflow installation with a 31.1 EER efficiency and integrated Wi-Fi control through their Epic Connected Control and it's associated myUplink app.
The control allows for energy usage monitoring from anywhere as well as water temperatures and faults in the system. The Origin VS/VT premium models are more compact for
upflow installation in tight spaces and has a 27.2 EER rating. The Origin ZS/ZT premium heat pumps are compact horizontal units that are available with either single or
two stage compressors and a 29.8 EER efficiency. The premium Revolution CT models provide hot water for radiant floor heating systems as well as standard air heating and
cooling. They have two stage compressors with a 27.3 EER efficiency. The Revolution XT models are premium heat pumps with a 24.9 EER efficiency. The brand uses basic one inch
filters which is not as good at cleaning the air as many other brands and they do not offer a model that qualifies for the HvacRepairGuy basic category for the price
conscious market.
KEEP RITE
★ ★ ★ ★ ☆
This brand is from Carrier and is only available through authorized dealers in the USA and Canada. The units feature corrosion resistant coils and two inch MERV8 filters to clean
the home's air. They offer an optional domestic hot water package and are backed by a good guarantee but they use R410a refrigerant which is not as earth friendly as brands
that use R32. The Performance Series HB models are premium units with a single stage compressor and constant torque blower motor. They have a 21.7 EER efficiency while the
QuietComfort Series HP models have a two stage compressor, variable speed blower motor, and a 24.5 EER efficiency rating. The HP models have a compressor blanket for quieter
operation and a five year No Hassle guarantee where the entire unit is replaced if the compressor or coils fail within five years of installation. The brand does not offer models
that qualify for the HvacRepairGuy basic and ultimate categories.
MIAMI HEAT PUMP
★ ★ ★ ☆ ☆
These heat pumps are made in the USA and are sold throughout North and South America. The HPX series units are basic forced air units with a stainless steel cabinet and
cupro-nickel heat exchangers for durability. They have stainless steel insulated drain pans to eliminate leaks from corrosion and sweating and offer many options including
a desuperheater for domestic hot water production. The warranty on this brand is about average for the industry and they have an online store where they can be purchased by
consumers which results in a huge cost savings. The units have a relatively low efficiency with a 17 EER, they use R410a refrigerant which is not as environmentally
friendly as R32, and they use a standard one inch disposable filter which does not do much to improve the home's air quality. The brand does not offer models that qualify for the
HvacRepairGuy premium and ultimate categories.
NORDIC
★ ★ ☆ ☆ ☆
This brand is made in Canada by Maritime Geothermal Ltd and the units are sold in North America and Europe. The R Series models are water to air units that feature two stage
scroll compressors and a variable speed fan for added comfort and efficiency. They have a stainless steel condensate drain pan for durability but the warranty is not as
good as many brands. The R Series offers basic units with a 16.3 EER rating for vertical installations while the RH models are for horizontal installation. The TF Series features
premium units with a 22.4 EER efficiency and it provides hot water for radiant heating systems as well as forced air heating and cooling. All of the units use R410a refrigerant which
is not as environmentally friendly as R32 and they only use standard one inch disposable filters which do not do much to improve the home's air quality. The brand does not offer a
model that qualifies for the HvacRepairGuy ultimate category.
NORTHERN HEAT PUMP
★ ☆ ☆ ☆ ☆
This brand is made in the USA by Northern Geo LLC and is available in the USA & Canada through its dealer network. They feature durable scroll compressors and variable speed blower
motors for quiet and efficient operation. They have standard desuperheaters for domestic hot water assist but use R410a refrigerant which is not as environmentally friendly as R32.
The brand has a complicated warranty structure and it is not as good as most of the other brands. The eSeries units feature two stage compressors and they are more compact which is
good for retrofit applications. They are basic units with an 18.5 EER efficiency while the SS Series premium models are available with either single stage or two stage compressors and
have a 24.1 EER efficiency. The brand does not offer a model that qualifies for the HvacRepairGuy ultimate category.
TEMPSTAR
★ ★ ★ ★ ☆
This brand is from Carrier and is only available through authorized dealers in the USA and Canada. The units feature corrosion resistant coils and two inch MERV8 filters to clean
the home's air. They offer an optional domestic hot water package and are backed by a good guarantee but they use R410a refrigerant which is not as earth friendly as brands
that use R32. The Performance Series HB models are premium units with a single stage compressor and constant torque blower motor. They have a 21.7 EER efficiency while the
QuietComfort Series HP models have a two stage compressor, variable speed blower motor, and a 24.5 EER efficiency rating. The HP models have a compressor blanket for quieter
operation and a five year No Hassle guarantee where the entire unit is replaced if the compressor or coils fail within five years of installation. The brand does not offer models
that qualify for the HvacRepairGuy basic and ultimate categories.
TETCO
★ ★ ☆ ☆ ☆
This brand is made in the USA by Enertech Global LLC and is only sold through their dealer network. All of the units feature aluminum micro-channel air coils to eliminate
corrosion and a composite anti-microbial drain pan to inhibit mold growth. They are very quiet due to their quadruple compressor isolation system and variable speed fan
motors. They feature Copeland UltraTech compressors, appliance grade cabinets and standard domestic hot water assist to lower the home's water heating costs. The standard
warranty on the units is very good and can even be improved with the purchase of an optional 18 year extension on the coils and compressor. The ES5 YT models are
ultimate heat pumps for upflow installation with a 31.1 EER efficiency and integrated Wi-Fi control through their Epic Connected Control and it's associated myUplink app.
The control allows for energy usage monitoring from anywhere as well as water temperatures and faults in the system. The Ion VS/VT premium models are more compact for
upflow installation in tight spaces and has a 27.2 EER rating. The Ion ZS/ZT premium heat pumps are compact horizontal units that are available with either single or
two stage compressors and a 29.8 EER efficiency. The premium ES4 CT models provide hot water for radiant floor heating systems as well as standard air heating and
cooling. They have two stage compressors with a 27.3 EER efficiency. The ES4 XT models are premium heat pumps with a 24.9 EER efficiency. The brand uses basic one inch
filters which is not as good at cleaning the air as many other brands and they do not offer a model that qualifies for the HvacRepairGuy basic category for the price
conscious market.
WATERFURNACE
★ ★ ★ ★ ☆
This brand is made in the USA and is available through dealers in the USA & Canada. The units have an all aluminum air coil for corrosion prevention and variable speed blower
motors, as well as a desuperheater for assisting with the hot water needs of the home. They have advanced controls which allow for energy monitoring as well as responding to
Alexa voice commands. The units use R410a refrigerant which is not as environmentally friendly as R32 but their AlpinePure ionization system helps to improve the home's air
quality. The 7 series models are state of the art variable capacity heat pumps with an efficiency rating of up to 43.5 EER. It has a variable speed compressor as well as a
variable speed blower motor and circulator pump. They are backed by an average guarantee which does not include unit replacement in case of compressor failure. The 5 series
offers premium two stage models with a 28 EER efficiency while the 3 Series offers their most affordable models and have a 22.3 EER efficiency but their guarantee is not as
good. The SYNERGY 3D is a premium heat pump with integrated radiant heat capability and a 25.7 EER efficiency. They do not offer a model that qualifies for the HvacRepairGuy
basic category for the price conscious market.
YORK
★ ★ ★ ☆ ☆
This brand is made in the USA by WaterFurnace International and is available through York dealers in the USA & Canada. The units have an all aluminum air coil for corrosion
prevention and variable speed blower motors, as well as a desuperheater for assisting with the hot water needs of the home. They have advanced controls which allow for energy
monitoring as well as responding to Alexa voice commands. The units use R410a refrigerant which is not as environmentally friendly as R32. The YAF & YZF models are premium two
stage models with a 28 EER efficiency while the YLF models are their most affordable models and have a 22.3 EER efficiency but their guarantee is not as good. They do not offer
models that qualify for the HvacRepairGuy basic and ultimate categories.
