With our gas water heater ratings, you can cut through all the sales hype and find value. We have researched the manufacturers' data and combined that information with our years of service experience in the hvac industry to provide our unique rating system. It truly is like taking a repairman with you while you shop. These reviews are for units that burn natural or propane gas to heat a tank of water (at least 30 gallons) for domestic consumption. They are commonly called whole house storage water heaters. We have given you our top picks followed by a complete list of manufacturers and reviews of their products.

AMERICAN ★ ★ ★ ☆ ☆

This brand is from AO SMITH and is sold in home improvement/hardware stores. The POWERFLEX models are direct vent units with built-in heat traps. They use basic tank technology and the guarantee is not as good as some of the other brands. The POLARIS range offers condensing models with a factory provided tempering valve and self diagnostic controls. They are available in two sizes (34 or 50 gallon) but the guarantee on parts other than the tank is not as good as other brands. americanwaterheater.com

AMERICAN STANDARD ★ ★ ★ ☆ ☆

This brand offers basic units with glass lined tanks. They are self cleaning and have factory installed heat traps to reduce the heat loss in the home's water pipes. They are basic atmospheric combustion units but they are backed by a good warranty. waterheating.com

AO SMITH ★ ★ ★ ★ ☆

The CONSERVATIONIST series has an auto sediment cleaning system but the warranty on the tank is not as good as many brands. The VERTEX POWER DIRECT VENT and VERTEX POWER-VENT are high efficiency gas fired models that are backed by a very good warranty. They have advanced electronic controls but use basic enameled tank technology. hotwater.com

AQUAMAX ★ ☆ ☆ ☆ ☆

This brand is a part of RHEEM AUSTRALIA PTY and is made and sold in Australia. The gas fired stainless steel models are available in three sizes and are backed by a decent warranty. aquamax.com.au

ARISTON ★ ☆ ☆ ☆ ☆

The SGA CA models are basic gas fired heaters while the SGA FB are sealed combustion models. The OPTIMA CA/FF has electronic controls. Their website does not have a stated guarantee for their products and they use basic technologies. ariston .com

ATTACK ★ ☆ ☆ ☆ ☆

These water heaters are made in Slovakia and are sold throughout Europe. They feature basic atmospheric units that are wall-hung. They use basic ceramic lined tank technology and their website does not have a stated guarantee for their products. attack.sk

BANDINI ★ ☆ ☆ ☆ ☆

This brand is made in Italy and sold in Europe, Asia, North Africa, & the Middle East. The water heaters are available in four sizes and use standard tank technology. The warranty on the brand is not very good when compared to others. bandiniwaterheaters.com

BENCHMARK ★ ☆ ☆ ☆ ☆

These water heaters are made and sold in India. They are available in atmospheric or forced draft models with electronic controls and use basic glass lined tank technology. Their website is not much help and does not have a stated guarantee on their products. benchmarkagencies.com

BEST ★ ☆ ☆ ☆ ☆

This brand is made and sold in Canada. They offer both atmospheric and power vented gas models in various sizes. The warranty on the units is not as good as many brands. gemcoinc.com

BRADFORD WHITE ★ ★ ☆ ☆ ☆

They offer a variety of models including atmospheric or direct vent gas water heaters. They use basic glass-lined tank technology but are backed by a decent guarantee. bradfordwhite.com

CAL-O-REX ★ ☆ ☆ ☆ ☆

This brand is made and sold in Mexico. They offer water heaters with basic tank technology but the warranty on the tanks is not very good when compared to other brands. calorex.com.mx

CLASIC ★ ☆ ☆ ☆ ☆

This brand offers units with basic technology. They are available in a variety of sizes but their website is not much help. clasic.com.pe

COTERM ★ ☆ ☆ ☆ ☆

The GTF gas water heaters have sealed combustion for energy savings and are available in five sizes to match the needs of the home. They use basic tank technology and their website is not much help. coterm.it

DUX ★ ☆ ☆ ☆ ☆

This brand is a part of GWA INTERNATIONAL LTD and is available in Australia. The PRODIGY units are gas fired and are available in two sizes but use basic tank technology. When compared with other brands, their warranty is not very good. dux.com.au

ELCO ★ ★ ★ ☆ ☆

The THISION WH uses a THISON L condensing modulating boiler with a stainless steel storage tank. The guarantee on the units is not very good when compared to other brands. elco.co.uk

ESKABE ★ ☆ ☆ ☆ ☆

These units are made and sold in Argentina. They offer three sizes of gas fired water heaters that feature atmospheric combustion which is the most inefficient. The warranty on the units is not as good as many other brands. eskabe.com.ar

GIANT ★ ★ ☆ ☆ ☆

These units are made and sold in Canada. They offer a variety of models including atmospheric, power vent, and direct vent units for flexibility in installation. The brand is backed by a good guarantee. giantinc.com

GSW ★ ★ ★ ★ ☆

This brand is owned by AO SMITH and is sold in Canada. The FLAMEGUARD gas model has a piezo ignitor for the pilot. The ENVIROSENSE models are high efficiency condensing water heaters with electronic controls but they use basic glass lined tanks. gsw-wh.com

HEAT WAVE ★ ☆ ☆ ☆ ☆

These water heaters are made and sold in Mexico by MACON INDUSTRIES. They are basic standing pilot units with glass lined tanks and their guarantee is not very good. heatwave.com.mx

HEIZER ★ ☆ ☆ ☆ ☆

This brand is made in Italy. The GAN series features basic wall hung gas water heaters while the GAFF series units use sealed combustion. All of the models use basic glass-lined tank technology and their warranties are not very good. heizer.it

HTP ★ ★ ★ ★ ★

This brand is from HEAT TRANSFER PRODUCTS. The PHOENIX LIGHT DUTY is a condensing gas-fired water heater with an AFUE of up to 96%. It has a stainless steel tank and electronic control as well as a modulating burner for energy savings. It is available in three tank sizes (55, 80, and 119 gallons). It has a side hot water outlet and bottom cold water inlet. It is a high capacity unit that is suitable for large homes or where whirlpool tubs are used and is backed by a very good guarantee. htproducts.com

JOANNES ★ ☆ ☆ ☆ ☆

This brand is sold in Italy and is a part of FINTERM. The SAL series is available in three sizes and features units with atmospheric combustion while the SAL S series offers five sizes of the more efficient sealed combustion water heaters. Their website is not much help and does not have a stated guarantee for the units. joannes.it

JOHN WOOD ★ ★ ★ ★ ☆

These units are made by GSW which is owned by AO SMITH and are available in POWER VENT or POWER DIRECT VENT models. The ENVIROSENSE models are high efficiency condensing water heaters that are backed by a pretty good warranty. johnwoodwaterheaters.com

KENMORE ★ ★ ★ ☆ ☆

This brand offers a wide variety of units that can be purchased at SEARS stores. The KENMORE ELITE 50 gallon 12 year gas model features electronic ignition and LCD controls. They use basic tank technology with a powered anode for corrosion prevention but they are backed by a good guarantee. All of the units feature their "ROTO-SWIRL" cold water inlet dip tube. This helps to minimize sediment buildup in the tank. kenmore.com

LOCHINVAR ★ ★ ☆ ☆ ☆

This brand is available in a wide selection of models but they use traditional glass-lined tank technology. The units are available in standard atmospheric combustion models as well as direct vent, power vented, and manufactured home models. lochinvar.com

LONGVIE ★ ☆ ☆ ☆ ☆

This brand offers basic water heaters that use atmospheric combustion. They offer a variety of models but their website is not much help and does not have a stated warranty policy. longvie.com

MARTIRI ★ ☆ ☆ ☆ ☆

This brand is made and sold in Argentina. They offer basic units with atmospheric combustion and enameled tank technology. Their website does not have a stated guarantee for the products. martiri.com.ar

MHS ★ ☆ ☆ ☆ ☆

These water heaters are made in the U.K. The TUDOR NHRE units have a standing pilot while the NHREV units are sealed combustion with spark ignition. The THISION units are high efficiency models that are available in two sizes. The warranty on the units is not very good when compared to other brands. elco.co.uk

RELIANCE ★ ★ ☆ ☆ ☆

This brand is available at hardware stores. The SELF CLEANING gas fired units are available with 9 or 12 year guarantees. Sidewall vent models are also available. reliancewaterheaters.com

RHEEM ★ ★ ★ ★ ☆

This brand is a part of the PALOMA GROUP. The CLASSIC PLUS gas fired units are available in atmospheric or power vented models and have a decent warranty. The PROFESSIONAL PRESTIGE series offers high efficiency units but they use basic tank technology. waterheating.rheem.com

RICHMOND ★ ★ ★ ☆ ☆

This brand is built by RHEEM MANUFACTURING which is a part of the PALOMA GROUP. The models are available in standing pilot models with Piezo ignitor with guarantees of 6,9, or 12 years. A power vent model and a high efficiency model is also available. richmondwaterheaters.com

RUUD ★ ★ ★ ★ ☆

This brand is a part of the PALOMA GROUP. The ACHIEVER PLUS series units use basic tank technology but have a good warranty. The PROFESSIONAL ULTRA series offers high efficiency water heaters that are backed by a pretty good warranty. ruud.com

SENORIAL ★ ☆ ☆ ☆ ☆

These water heaters are made and sold in Argentina. They are available in a variety of sizes but use atmospheric combustion and enameled tank technology. The guarantee on the units is not very good when compared to other brands. talsar.com.ar

SOLE ★ ☆ ☆ ☆ ☆

This brand is made and sold in Peru by MT INDUSTRIAL. They are very basic units that can be purchased directly from their website. sole.com.pe

SPHEREHOT ★ ☆ ☆ ☆ ☆

This brand is made and sold in India. The gas model is very basic and not very efficient. The warranty on the units is not as good as most other brands in the industry. spherehot.com

STATE ★ ★ ★ ★ ☆

The premier units have self cleaning technology and a strong warranty. They are also available in power vent and direct vent models. The brand is a part of A.O. Smith. statewaterheaters.com

US CRAFTMASTER ★ ★ ☆ ☆ ☆

This brand is made by AMERICAN WATER HEATER which is owned by AO SMITH. The POWERFLEX series gas units are high efficiency units. They have a powered anode but use basic glass tank technology. uscraftmaster.com

VAUGHN ★ ★ ★ ☆ ☆

The GC models are high efficiency models that are available in sizes from 40 to 120 gallons. They use hydrostone lining but there is better technology and they have a limited dealer network. vaughncorp.com

VULCAN ★ ☆ ☆ ☆ ☆

This brand is from RHEEM AUSTRALIA PTY LTD and is sold in Australia. The FREELOADER models are basic units in two sizes. They use basic enameled tank technology and the warranty is not as good as many other brands. vulcan.com.au

WARM STREAM ★ ☆ ☆ ☆ ☆

This brand is made and sold in India. It offers seven sizes of units that use the most basic of technology. Their website is not much help and does not have a stated warranty policy. warmstream.co.in

WESTINGHOUSE ★ ★ ★ ☆ ☆

This brand is made by HTP and offers high efficiency (97%) units in three sizes. They can be purchased online but their guarantee on most parts is not very good when compared to other brands. westinghousewaterheating.com

WHIRLPOOL ★ ★ ★ ☆ ☆

This brand offers a wide variety of gas fired units but their high-efficiency models are top of the line. They feature electronic ignition controls as well as an automatic flue damper and they are backed by a very good warranty. The units can be purchased through LOWES home improvement stores in the USA. whirlpoolwaterheaters.com

You might like these