Finding the healthy balance between your hot water usage and your utility bills can be as easy as switching to a gas heating system. Gas heaters conserve better water and energy than electrical options, making them a cost-effective alternative. We have compiled our picks for the best gas water heaters on the market for your review.

Best Gas Water Heater FAQ

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1. What Is The Difference Between Electric And Gas Water Heaters?

2. What Tank Size Should I Choose For My Gas Water Heater?

How We Reviewed

To determine the best gas water heater, we researched various brands ranked on top selling lists and read online customer reviews and feedback forums. We then compiled a list of our picks for the best gas water heaters based on their different Features, Pros & Cons, Price, Where to Buy and Warranty for your comparison.

Overall Price Range

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Prices for gas water heaters will vary depending on the materials used in their construction, their water capacity and energy consumption, and the brand. The lowest prices we have reviewed begin at $130 and increase to $4000, but the most expensive gas heaters on the market can cost up to $20,000. It is important to remember that price is not the only contributing factor when it comes to reviewing the best gas water heaters.

What We Reviewed

  • Smith GPVX-75L ProMax SL Power Vent 7 Gas Water Heater
  • Rheem G100-80 Natural Gas Universal Commercial Water
  • Takagi T-H3S-DV-N Condensing Natural Gas Water Heater
  • Rinnai V65EP Tankless Water Heater
  • Rheem RTG-64DVLN Prestige Tankless Natural Gas Water Heater
  • Eccotemp i12-NG Tankless Water Heater
  • Bradford White Gas Water Heater #RG240T6N
  • Tengchang 18L LPG Propane Gas Hot Water Heater
  • Bosch 940 ES NG Tankless Gas Water Heater
  • Excel Tankless LPG Gas Water Heater

A.O. Smith GPVX-75L ProMax SL Power Vent 7 Gas Water Heater

A.O. Smith GPVX-75L ProMax SL Power Vent 7 Gas Water Heater with...
  • Blue Diamond glass coating provides superior corrosion resistance compared to the industry-standard glass lining
  • All models feature an exclusive 3-position rotatable blower outlet which adds flexibility
  • Combined horizontal and vertical vent runs up to 180 equivalent feet with 4-in diameter venting (ABS, PVC, CPVC and...

Features

The A.O Smith GPVX-75L ProMax Gas Water Heater is state-of-the-art, with impressive features such as an electronic gas control function to ensure precise temperatures and a blue diamond glass interior lining to protect against corrosion. It also includes an exclusive 3-position rotatable blower outlet for easy installation as well as a 6-year warranty from A.O Smith for peace of mind.

Warranty

This water heater comes with a 6-year Limited Warranty' by AO Smith.

Pros

  • Durable
  • Best corrosion protection with blue diamond glass coating
  • Electronic gas control

Cons

  • Pricey

Rheem G100-80 Natural Gas Universal Commercial Water

Rheem G100-80 Natural Gas Universal Commercial Water Heater, 100...
  • 75,000 BTU
  • Universal tank design
  • Universal space saver design

Features

Featuring a compact, space-saving design, the Rheem G100-80 Natural Gas Universal Commercial Water Heater delivers reliable performance over the course of its life. Tested by ANSI, this water heater is among the best at thermal energy efficiency, and its high temperature porcelain enamel coating provides long-lasting durability. With an easy installation process, the Rheem G100-80 guarantees fast and effective water heating throughout your household.

Warranty

The Rheem G100-80 comes with a 3-year warranty for the tank and a 1-year warranty for parts. Both warranties are only valid if a licensed technician installed the unit.

Pros

  • Great energy efficiency rating
  • Impressive design and construction
  • User-friendly controls

Cons

  • A little over-priced considering its features
black water heater

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Takagi T-H3S-DV-N Condensing Natural Gas Water Heater

Takagi T-H3S-DV-N Condensing High Efficiency Natural Gas Indoor...
  • Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
  • Computerized safety features, No pilot light to have to worry about
  • Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions

Features

The Takagi T-H3S-DV-N Condensing Natural Gas Water Heater has a family-friendly design with lead-free components and multiple safety features, such as surge protection and diagnostic codes for great freeze control and overheating management. This unit outputs 10 gallons of hot water per minute and can also connect to multiple other water heaters for multi-controller use in large buildings where a constant flow is necessary.

Warranty

The Takagi T-H3S-DV-N comes with a 1-year limited warranty by the manufacturer and is only valid if a licensed technician installed the unit.

Pros

  • Well-constructed
  • Lead-free components
  • Low-carbon footprint
  • Durable design

Cons

  • There have been a few reports of premature breakages and longevity issues

Rinnai V65EP Tankless Water Heater

Rinnai V65EP Tankless Water Heater, Large, V65eP-Propane/6.5 GPM
  • Endless hot water for your entire home
  • V65eP HE High Efficiency Tankless Hot Water Heater - Propane: Outdoor Installation Only
  • Up to 6.5 GPM hot water flow rate (varies by groundwater temp)

Features

Rinnai has a reputation for quality and reliability, and the V65EP Tankless Water Heater is no exception, with a high flow rating of 6.5 gallons per minute (GPM) and a high energy efficiency factor of 0.82. This unit will never run out of hot water regardless of your output, and the 24-hour programming function gives the user control over temperatures, so that hot water usage patterns and requirements are customizable for efficiency.

Warranty

From installation, Rinnai includes a warranty that covers 10-years for the heat exchanger, 5-years for parts, and 1-year for labor.

Pros

  • Constant flow of hot water
  • Durable and high-quality construction
  • Decent warranty
  • Quiet operation

Cons

  • Has to be installed by a professional

Rheem RTG-64DVLN Prestige Tankless Natural Gas Water Heater

Rheem RTG-64DVLN Prestige Low NOx Indoor Direct Vent Condensing...
  • Natural Gas Tankless Water Heater
  • Direct Vent Indoor
  • 6.4 gal/min. at 35-Degree Rise

Features

The Rheem RTG-64DVLN Prestige Tankless Natural Gas Water Heater is a top performance product featuring hot-start programming to minimize temperature fluctuations and intelligent electronic controls designed to increase energy efficiency and safety. Its water saving setting can save homeowners up to 1,100 gallons of water per year, and the low flow fixture ensures instant hot water even in low demand situations.

Warranty

Rheem provides a 12-year limited warranty for the RTG-64DVLN Prestige Natural Gas Water Heater from installation.

Pros

  • High flow rate
  • Low NOx
  • Energy Star certified
  • Remote controllable
  • Compact and space-saving design

Cons

  • Small capacity; not the best for large households

Eccotemp i12-NG Tankless Water Heater

Sale
Eccotemp i12-NG Tankless Water Heater
  • Whole home indoor, gas powered tankless water heater, rated at 3 GPM that activates only on demand and no pilot light...
  • Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls
  • Features fully automatic temperature controls with an energy saving mode and child lock technology

Features

Designed for indoor, medium hot water production, Eccotemp's i12-NG Tankless Water Heater is a natural gas fired model ideal for your vacation home, apartment, cabin, RV, boat or mobile home. Boasting a modern, front panel of tempered glass, easy-to-use LED display controls and child lock technology, Eccotemp's water heater is user friendly and comes ready to install.

Warranty

This water heater comes with a 2-year limited manufacturer warranty.

Pros

  • User-friendly
  • Easy to install if you are replacing a 'tankless' water heater
  • Sleek appearance

Cons

  • Hard to install if you are replacing a 'tanked' water heater
  • Slow to heat
  • Heat exchanger will freeze over if in a cold climate

Bradford White Gas Water Heater #RG240T6N

Bradford White 40 Gallon Natural Gas Water Heater #RG240T6N
  • Bradford White ICON System
  • Advanced ScreenLok Technology Flame Arrestor Design
  • Resettable Thermal Switch

Features

The Bradford White Gas Water Heater features a built-in Piezo Igniter, which is an intelligent gas control and millivolt powered technology for optimal heating and safety. Measuring 20 x 20 x 60.5 inches and weighing 134 pounds, this maintenance-free design uses thermopile to convert heat energy from the pilot flame rather than electricity.

Warranty

Bradford offers a 6-year limited warranty for the parts of this water heater, but it does not cover labor issues.

Pros

  • Easy to install
  • User-friendly
  • Optimal performance
  • Can use sight window to check pilot light
  • No need to drain the tank when removing gas valve

Cons

  • Issues with the pilot light going out
  • Leaks

Tengchang 18L LPG Propane Gas Hot Water Heater

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Features

With a sleek, thin-shaped appearance, Tengchang's 18L LPG Propane Gas Hot Water Heater features an 'over-water' protection function to decrease pressure, manifold auto protection for your safety, and a control for the hot and cold water. This design is suitable for summer and winter, as it can heat 4.8 gallons of water per minute at a 25F degree rise with its automatic ignition and flame failure protection systems.

Warranty

Tengchang offers a 3-year warranty for parts for this water heater.

Pros

  • Fast working
  • Perfect for summer and winter
  • Compact
  • Affordable

Cons

  • Batteries not included
  • Poor customer service

Bosch 940 ES NG Tankless Gas Water Heater

Bosch 940 ES NG Tankless Water Heater, Natural Gas
  • 199,000 max input (BTU)
  • Highest capacity non-condensing model
  • 9.4 gallons per minute capacity at 35F degree rise

Features

Measuring only 12 x 18 x 31 inches and weighing 67 pounds, Bosch's 940 ES NG Tankless Gas Water Heater offers a compact, stainless steel, fast heating option for your space. This high capacity, non-condensing model has a maximum output of 199,000 BTU, and can heat up to 9.4 gallons per minute at a 35F degree rise. Its sealed combustion and dual-fan technology make it easy to install.

Warranty

Bosch offers a 1-year warranty on this water heater.

Pros

  • Instant hot water
  • Space saver
  • Reduces utility bills
  • Cost effective

Cons

  • Reports of faulty control panels
  • Poor tech support

Excel Tankless LPG Gas Water Heater

No products found.

Features

Excel's Tankless LPG Gas Water Heater boasts a compact design with a 'pure oxygen-free' copper heat exchanger for durability and thermally efficiency. Unlike all other tankless options that need at least 20 – 30 PSI, Excel's model uses ‘low water pressure start-up technology', so it only requires 2 PSI of water pressure to start, making it ideal for RV' s, campers, cabins, small apartments, and boats. This gas water heater delivers immediate hot water, which will save energy, water and your wallet.

Warranty

Excel's pure copper heat exchanger comes with a lifetime warranty, and the other parts of the water heater are covered by a 1-year warranty.

Pros

  • Fast working
  • Water consumption is only 1.6 GPM
  • Easy to install

Cons

  • Poor customer service
  • Unit becomes hot to touch

The Verdict

child with a water heater robot

via giphy

These are our picks for the best gas water heaters available on the market. After much deliberation, we believe Excel Tankless LPG Gas Water Heater is the best option. Excel's tank boasts a compact design with durability, thermally efficiency and only requires 2 PSI of water pressure to deliver immediate hot water.

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