Best Gas Water Heater Reviews (Guide 2017)

The best gas water heaters, regardless of their efficiency, ultimately outlast their shelf-life. So, in principle, when your water heater reaches the end of its life expectancy, you are left with the challenge of selecting a replacement.

As consumers prepare for each year, new energy-efficient regulations associated with gas water heaters are continuously being introduced. Therefore, it is advised you do your homework before making any purchase. For the most part, it’s sensible to consult a professional plumber or a manufacturer to become aware of new regulations. With many top gas water heaters, initially, you could potentially pay a higher price. However, consumers save money overall over the years.

Gas water heater reviews, therefore, present an ideal opportunity to contemplate which water heaters are the best on the market to suit all situations. With any replacement gas water heater after expiration, this article enables you to make wise choices.

gas water heater reviews
  • Rheem G100-200
  • Capacity: 100 gal
  • BTUs: 199,900
  • Recovery rate: 194 gal/h
  • Weight: 780 lbs
  • Dimensions: 30.2" x 30.2" x 66.1"
  • Warranty: 3-year for tank and 1-year for parts
  • Other: low profile automatic flue damper, multi-flue tank design
top rated gas water heaters
  • Rheem PROG50-42N
  • Capacity: 50 gal
  • BTUs: 42,000
  • Recovery rate: 32.4 to 42.4 gal/h
  • Weight: 160 lbs
  • Dimensions: 21" x 21" x 65"
  • Warranty: 6-year for tank, 6-year for parts
  • Other: air/fuel shut-off device, low venting length, R-Tech anode rod, self-diagnostic system, low NOx design
best gas heater
  • A.O. Smith XCG-50
  • Capacity: 50 gal
  • BTUs: 40,000
  • Recovery rate: 41 gal/h
  • Weight: 148 lbs
  • Dimensions: 21" x 21" x 60.75"
  • Warranty: 10-year for tank, 6-year for parts
  • Other: self-powered electronic gas valve, internal microprocessor, Dynaclean diffuser dip tube
gas water heater comparison
  • A.O. Smith GPVX-75L
  • Capacity: 75 gal
  • BTUs: 76,000
  • Recovery rate: 80.4 gal/h
  • Weight: 292 lbs
  • Dimensions: 26" x 26" x 70.6"
  • Warranty: 6-year for tank, 6-year for parts
  • Other: 3-position rotatable blower outlet, horizontal and vertical vent runs up to 180', electronic gas control, tamper-resistant brass drain valve
Rheem PROG40-38N gas water heater
  • Rheem PROG40-38N
  • Capacity: 40 gal
  • BTUs: 38,000
  • Recovery rate: 30.3 to 50.5 gal/h
  • Weight: 130 lbs
  • Dimensions: 20" x 20" x 50"
  • Warranty: 6-year for tank, 6-year for parts
  • Other: low Knox design, R-Tech anode rod, EverKleen system, enhanced flow brass drain valve, air/fuel shut-off
buying a gas water heater
  • Reliance 6-40-NOCT
  • Capacity: 40 gal
  • BTUs: 35,500
  • Recovery rate: 36 gal/h
  • Weight: 150 lbs
  • Dimensions: 20" x 20" x 62"
  • Warranty: 6-year for tank, 6-year for parts
  • Other: 2" insulation, aluminum anode rod, stainless steel flame arrestor, door mounted manual reset temperature cut off

Top 6 Gas Water Heaters

A.O. Smith XCG-50 ProMax Gas Water Heater

best gas water heaterThe ProMax family featured in these gas water heater reviews offers widespread benefits for families that are eligible for gas utility rebates. These top gas water heaters feature a two-pipe combustion structure that pulls uncontaminated air from outside the household and eradicates any qualms about poor indoor ventilation.

The internal microprocessor offers superior functional parameters and precise detectors provide a quick heating response for performance enhancement. The intelligent control logic uses a thermopile to generate enough power to run the electronic gas control system without any demands from external power sources. Additionally, the electronic gas control features an LED status indicator to oversee all system functions and service analytics.

The eco-friendly patented gas burner contains non-CFC foam insulation, exterior heat traps, and a built-in combustion chamber that combines to produce a high-energy factor for optimal savings on operating costs. Purchasing this design lessens NOx emissions by up to 33%, in conjunction to conforming with Low-NOx emission conditions under 40 ng/J.

The exterior Blue Diamond glass coating delivers corrosion resistance, in combination with an enhanced flow brass drain valve which uses a female host fixture to permit quick and easy draining during routine maintenance.

Product Summary:

  • Blue Diamond glass veneer delivers superior corrosion resistance
  • This design conforms to Federal Energy Conservation Standards, in agreement with the Energy Policy and Conservation Act, (EPCA), as revised.
  • Electronic gas valves use a thermopile to produce power required to operate the electronic gas control without needing external power
  • Internal microprocessor offers superior operating parameters for accurate sensing and quicker heating responses for your shower other household water uses
  • Dynaclean diffuser dip tube helps to decrease lime and sediment accumulation


Rheem G100-200 Gas Water Heater

gas water heater reviewsThe G100-200 is a universal gas commercial heater from which the tauter the commercial retrofit, the more you will feel grateful for its compact size with multiple water connections. This model has a tank capacity of 100 gallons and was purposely manufactured to reduce aggravation during the installation of the new water heaters. These best rated gas water heaters have also been designed for applications that need large amounts of hot water.

One particular feature consists of temperature and pressure relief valves, plus an exclusive diagnostic system with glowing System Sentinel LED lights that allow users to choose between distinct system operations, sequence by sequence. Another factor is consumers have the choice to utilize 80 % thermal efficiency paralleled with maximum temperature settings of up to 180 degrees Fahrenheit.

Patented technology amalgamates universal proprietary steel formulation together with multi-flue expertise, and two coats of porcelain enamel, giving rise to a state-of-the-art heat exchanger design. Furthermore, the incorporation of meticulous burners and advanced port design are manufactured from high-quality chromium stainless steel. Each burner assembly slides-out for a quick examination during maintenance.

Product Summary:

  • 199,900 British Thermal Units (BTU)
  • Incorporation of a universal tank design
  • A compact high-quality design with multiple water connections to save space
  • Advanced patented technology comprising of a multi-flue tank design
  • The addition of a low profile automatic flue damper


Rheem PROG50-42N RH67 Gas Water Heater

top rated gas water heatersThis PROG50-42N RH67 featured in these gas water heater reviews is traditionally a tank-type water heater that uses the power of gas but is just as efficient as a high performing water heater. The self-diagnostic system incorporated with the electronic gas control also improves monitoring and maintenance. This model draws indoor air for combustion with the use of blower exhausts to flue the gases, in conjunction with the new quiet blower that reduces the high-pitched sound produced from standard water heaters using a standard 120 VAC electrical connection.

The Guardian System™ and Sensor have exclusive combustion air/fuel shut-off devices to enhance the efficiency of the system, from which the flame arrestor plate has the capacity to disable the whole water heater when faced with flammable vapor accumulation. Such mechanical components provide a maintenance free experience with no filter to clean.

This eco-friendly gas burner lessens NOx emissions, and the Professional Classic™ Power Vent gas water heater offers high-efficiency performance by using long venting lengths of up to 100 equivalent feet, constructed from PVC, ABS, or CPVC pipes, whilst the Guardian system is Energy Star® rated to provide fast recovery rates.

Product Summary:

  • Draws indoor air using the combustion chamber, and blower exhausts to process flue gases
  • High-class air/fuel shut-off device to enhance the efficiency of the system
  • Easy maintenance indicating no filter cleaning
  • Very long venting lengths equal to 100 feet
  • Rheum optimum R-Tech (registered) anode rod permits long-term water tank protection
  • This innovative Model number supplants the previous Model number 43VP50E2


A.O. Smith GPVX-75L Gas Water Heater

gas water heater comparisonThis deluxe gas water heater has a 75-gallon tank, a 76,000 BTU gas burner, and a GPVX-75L power vent, which combine to supply a high recovery rate of 80.4 gallons per hour. This vent gas water heater is incredibly versatile and can be installed anywhere in the household after venting up to 40 feet. This vent design comprises of a two-pipe combustion system that pulls clean air from the household, and reduces anxiety about poor indoor ventilation.

This advanced technology consists of a versatile power vent with a superior 3-position rotatable blower outlet that delivers additional suppleness to the operating system. In addition, the merged horizontal and vertical vent arrangement runs along a total of 180 feet with 4″ diameter venting (ABS, PVC, CPVC and polypropylene).

This model is fortified with secure sensors and an air intake snorkel to prevent flammable vapor entering the coated combustion chamber via uplifted inlet locations of combustible air, which ultimately disables the burner to prevent ignition.

Product Summary:

  • Blue Diamond glass coating provides superior corrosion resistance compared to the industry-standard glass lining
  • All models encompass an elite 3-position rotatable blower outlet that increases litheness
  • Merged horizontal and vertical vent is capable of 180 comparable feet with 4-in breadth venting (ABS, PVC, CPVC and polypropylene)
  • Contemporary electronic gas control offers more accurate temperature controls, plus LED control lights shows operational analytical information
  • Factory-fitted T&P and a heavy-duty, tamper-resilient brass drain valve are placed for service availability


Rheem PROG40-38N RH59 Gas Water Heater

Rheem PROG40-38N gas water heaterThis efficient PROG40-38N RH59 design is one of the best water heaters, and emits more hot water at low operating costs, with the superior performance of 58-62 energy factor enabling 50 to 90 gallons to pass through the system, with a fast recovery rate of 30.3 to 50.5 gallons at 90 degrees.

The Guardian system and sensor comes with an exclusive air/fuel shut-off valve to increase the productivity of the whole system, offering low maintenance with no need to clean the filterThis eco-friendly gas burner is incredibly easy to light where no matches are required, in addition to lessening NOx emissions and meeting legal requirements of under 40 ng/J.

Also, the EverKleen™ patented system prevents lime and sediment building up in the pipes, contains a low lead levels, temperature and pressure valves to choose between a variety of sequence settings, coupled with a superior flow brass drain valve for increased flow efficiency. Lastly, the PROG40-38N RH59 high-class R-Tech (resistored) anode rod offers a longer life expectancy for tank protection.

Product Summary:

  • This eco-friendly Knox design gas burner design decreases NOx emission and meeting legal requirements of under 40 ng/J
  • Rheum cutting-edge R-Tech (registered) anode rod offers long life expectancy and ultimate tank protection
  • This first-class EverKleen patented system prevents the build-up of lime and sediment build-up
  • Superior-flow brass drain valve consisting of low lead compliant
  • This new Model is in replacement of an older model known as 22V40F1


Reliance 6-40-NOCT Gas Water Heater

buying a gas water heaterThis 6-40-NOCT 40-gallon natural gas heater has a 0.62 energy factor, a fast recovery rate at 90 degrees rise gallons/hours 36, and 35,500 BTU for a faster recovery rate. This natural gas water heater is ideal for a family of four, and the exterior housing comprises of a glass lined tank, an anode rod, and PEX polymer lined heat trap nipples to protect the system against corrosion.

This luxury water heater has an electronic gas control valve offering a clear-cut temperature control for smooth operational conditions. The piezo ignitor is FVIR Approved, and permits for easygoing “one-hand” pilot ignition without the use of matches.

This eco-friendly water heater also contains Non-CFC foam insulation and meets NAECA 2015 Efficiency Standards. This combination allows for a high-energy factor and provides optimal savings on operational costs.

Product Summary:

  • Built-in and factory-installed Pex polymer lined heat trap nipples
  • Contains a 6-year regulated tank and fixtures warranty, plus a 1-year labor force warranty
  • An electronic gas control valve that permits the consumer to have a straightforward temperature controller and operational routine
  • Piezo igniter offers a simple “one-hand” pilot ignition having to use matches
  • A glass-lined tank together with anode rod that guards against corrosion
  • Eco-Friendly non-CFC foam insulation to provide optimum energy saving costs
  • Fitted PEX polymer lined heat trap nipples
  • A precise temperature and pressure relief valve for optimal operating selection


Gas vs Electric Water Heater

What is better: a gas or electric water heater? The most popular options for standard water heaters are either a gas or electric element to heat the water. Through an analysis of water heater operating costs, gas is inevitably cheaper than electric. Depending on local utility prices, gas water heaters generally cost approximately $30 a month, whereas electric water heaters cost roughly $42 a month.

This analysis was based on heating operating costs, and natural gas is on average cheaper than electricity; however, installing a gas line adds cost, and it may take longer to appreciate any possible energy savings. Established on the price of energy savings, gas heaters typically make up the cost of electric heaters after one year. In this case, the choice of water heater depends on understanding gas vs. electric operating costs.

In comparison, electric heaters are less costly than gas heaters to buy and are typically simpler to install. Electric heaters are considered a lot safer than gas heaters because they lack the capacity to either leak or explode, and do not comprise of combustible by-products. Furthermore, electric water heaters function better than gas heaters which displace heat via venting.

Electric water heaters:

  • More expensive to operate
  • Has a life-expectancy of 12 years
  • Takes extra time to reheat water
  • Fail to work during power outage
  • More effective and efficient, with no heat loss

Gas Water Heater:

  • Reduced operational costs
  • Has a life-expectancy of 13 years
  • Takes a reduced amount of time to reheat the water
  • Works under power outage
  • Less effective and efficient, with greater heat loss

Bottom Line

Choosing the best gas water heater can be a taxing job. Choices can be centered on the ease of the installation, the number of gallons’ water tanks can hold, the energy factor, the number of people living in the household, and the initial start-up costs of gas water heaters contrasted to oil, electric or liquid water heaters.

Other factors to consider are temperature and pressure valves for great operational selection, the simplicity of ignition to prevent the use of matches, and electric gas control valves so consumers can straightforwardly use the temperature controllers for optimum operational regimens.

The materials used to build gas water heaters is vitally important. For instance, some models are eco-friendlier than others. Eco-friendly models comprise of glass-lined tanks and non-CFC foam insulation to offer superior energy saving costs.

In conclusion, after careful reflection of these gas water heater reviews, consumers can select the best option that caters for all personal needs.

Other types of water heaters include tankless water heaters and hybrid water heaters. Their reviews you can find by following the respective links.