Top 5 Best Gas Water Heaters: Editor Recommended

The 10 Best Gas Water Heaters Reviews:

1. Rinnai Indoor Tankless Hot Water Heater

Rinnai Indoor Tankless Hot Water Heater

Rinnai’s high-efficiency indoor tankless water heater models offer the most advanced technology with comfort and value. Unlike tank heaters which accumulate rusty sediments, this V65iN compact tankless water heater has a longer lifespan since water is heated on demand only which saves on energy costs. Rinnai products provide peace of mind with warranties that surpass the competition.

Highlighted Features:

  • Space-saving design conserves energy as it heats only when necessary
  • High-performance up to 6.5 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively

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2. MAREY GA24CSANG 8.34GPM, High Efficienty

MAREY GA24CSANG 8.34GPM, High Efficienty

Whole house indoor solution for 3 or more multiple points of use, Marey’s unit has a maximum input rating of 170,000 BTU/hr and will provide a flow rate of up to 8.34GPM output. This model is ideal for any any size home, apartment, cabin and small commercial usage.

In addition to state of the art design, the unit comes with a computerized safety system, over-heating protction, flame failure protection and anti-freeze protection. CSA certified for the US and Canada market. Special features: 1. Designed to effectively supply endless and on demand hot water for 3 or more multiple points of use.

2. The unit has no pilot light and consumes no gas when the heater is not being used. 3. Multiple built in safety features: Overheating Protection, Anti-block protection, Flame-failure protection and Anti-freeze protection. 4. Oxygen Free Heat Exchanger 5. Screen Touch precise temperature control.

6. Compact design allows installation in almost anywhere at home 7. Must be installed by a professional plumber or electrician to ensure safety and quality./ 8. CSA Certified 9. Stainless Steel Venting Exhaust. 10. Operated by 120 VAC voltage, shows imported PCB with precise temperature control.

Highlighted Features:

  • CSA Certified
  • LED Touch Screen Computerized Safety
  • Flow activation
  • Oxygen free copper heat exchanger
  • Stainless Steel Venting Exhaust
  • Anti-Freeze Protection
  • UL listed
  • DOE

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3. Rinnai RL94EN RRL94eN, 9.8 GPM, Outdoor Installation

Rinnai RL94EN RRL94eN, 9.8 GPM, Outdoor Installation

Rinnai’s high-efficiency outdoor models offer the most advanced technology in non-condensing tankless water heaters. Unlike tank heaters which accumulate rusty sediments, this RL94eN compact water heater has a longer lifespan since water runs continuously through pipes. Enjoy the endless hot water and added energy savings with the addition of Wi-Fi monitoring and recirculation technology for faster and more efficient hot water delivery right out of the faucet!

Highlighted Features:

  • High-performance 9.8 GPM hot water flow rate for a powerful, constant stream
  • 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, parts, and labor respectively

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4. MAREY GA24CSALP 8.34GPM, High Efficienty, CSA Certified

MAREY GA24CSALP 8.34GPM, High Efficienty, CSA Certified

Whole house indoor solution for 3 or more multiple points of use, Marey’s unit has a maximum input rating of 170,000 BTU/hr and will provide a flow rate of up to 8.34GPM output. This model is ideal for any any size home, apartment, cabin and small commercial usage. In addition to state of the art design, the unit comes with a computerized safety system, over-heating protction, flame failure protection and anti-freeze protection.

CSA certified for the US and Canada market. Special features: 1. Designed to effectively supply endless and on demand hot water for 3 or more multiple points of use. 2. The unit has no pilot light and consumes no gas when the heater is not being used. 3. Multiple built in safety features: Overheating Protection, Anti-block protection, Flame-failure protection and Anti-freeze protection.

4. Oxygen Free Heat Exchanger 5. Screen Touch precise temperature control. 6. Compact design allows installation in almost anywhere at home 7. Must be installed by a professional plumber or electrician to ensure safety and quality./ 8. CSA Certified 9. Stainless Steel Venting Exhaust. 10. Operated by 120 VAC voltage, shows imported PCB with precise temperature control.

Highlighted Features:

  • CSA Certified
  • LED Touch Screen Computerized Safety
  • Flow activation
  • Oxygen free copper heat exchanger
  • Stainless Steel Venting Exhaust
  • Anti-Freeze Protection
  • UL Listed
  • DOE

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5. Rinnai RU199iN RRU199iN, 11 GPM, RU199in

Rinnai RU199iN RRU199iN, 11 GPM, RU199in

Rinnai’s super high-efficiency plus condensing indoor tankless water heater models offer the most advanced technology with SENSEI. Unlike tank heaters which accumulate rusty sediments, this RU199iN compact tankless water heater has a longer lifespan since water runs continuously through pipes. Pair with an external pump and enjoy on-demand recirculation technology for faster and more efficient hot water delivery right out of the faucet!

Highlighted Features:

  • Up to 11 GPM hot water flow rate (varies by groundwater temp)
  • Circ-Logic technology allows you to set recirculation patterns that coincide with your typical habits. Hot water is available when you need it!
  • Residential Factory Warranty – 120 months (heat exchanger), 12 months (labor), 60 months (parts)

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6. Tankless Water Heater Natrual Gas On Demand Instant

Tankless Water Heater Natrual Gas On Demand Instant

FOGATTI tankless hot water heater installed indoors will save space in your home because it is compact and quiet and you hardly notice it there. It allows installation in non-traditional spaces such as attics, crawl spaces and even closets. It includes the following protections: Auto cut off the gas when the machine is off; Anti-dry burning protection; Over-heat protection; High water pressure protection; Anti-freezing protection; Anti Backflow of wind.

Highlighted Features:

  • The tankless natural gas water heater indoor heats water instantly with 145,000 BTU, enjoy a comfortable shower without waiting, save your valuable time, energy and water. The capacity is up to 3.7 GPM, making it a high efficiency instant water heater for multiple points of use.
  • The Fogatti natural gas tankless hot water heater is able to meet all of your hot water needs. No longer do you need to choose between a comfy shower, dish wash and laundry. The tankless hot water heater deliveries endless hot water and keeps everyone happy.
  • The Fogatti indoor tankless water heater uses standard 3/4″ NPT water fittings and 3″ Vent Pipe for convenient and quick installation. Plus, using natural gas tank and advanced venting technology enable more location options inside the house: Kitchen, Bathroom, Garage, Basement, Attic and etc.
  •  CSA certified in the United states and Canada. The tankless natural gas water heater indoor features multi safety protections: Overheat protection, Flame Failure Protection, Low Water Flow Protection, High Water Pressure Protection, Dry combustion Production and Anti-freeze Protection.
  • Compact design, the Fogatti tankless water heater is only the size of a small suitcase, and the wall-mount design frees up valuable floor space within your home. The burner is manufactured using the latest European technology, high efficiency and energy saving. And the Heat Exchanger is made of oxygen-free copper, highly efficient and durable.

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7. MAREY GA5FLP Gas Flow Activated Tankless Water Heater

MAREY GA5FLP Gas Flow Activated Tankless Water Heater

Save space and energy costs with the Marey Liquid Propane Gas Tankless Water Heater. Designed for indoor use, this water heater is best suited for apartments, cabins, and tiny homes. At 1.32 gallons per minute, the cordless water heater is activated by water flow rather than water pressure, with a minimum activation rate of 0.65 GPM. The heater is powered by (2) D batteries (not included).

There is no electrical connection required, making the cordless water heater a great option for backup power during outages. Control the temperature all year with the convenient summer/winter switch. The heater includes several safety sensors, including automatic ignition and cut-off, anti-dry combustion, flameout protection, twin solenoid valves, and more.

The heater only uses natural gas when water is flowing, using up to 60 percent less electricity than traditional tank water heaters. The installation process is very easy, and the tank works well with low levels of water pressure. With its eco-friendly and user-friendly design, the Marey 5-Liter Liquid Propane Gas Tankless Water Heater is a great option for apartment living, camping, and more.

Highlighted Features:

  • Save energy using less gas during the warm months with the Marey Tankless Liquid Propane Gas Water Heater; Color: White; Weight: 10.14 pounds
  • Tankless water heater starts with pulse ignition powered by (2) D batteries (not included); No cords necessary
  • Multiple safety sensors, such as auto cut-off, automatic ignition, anti-dry combustion, over-pressure, overheating, flameout protection, and twin solenoid valves
  • Ideal for indoor use in apartments, cabins, and tiny homes; Control your temperature year-round with the convenient summer/winter switch; Not recommended for elevations above 2,000 feet
  • 1.32-GPM heater is activated by water flow rather than water pressure; Minimum activation rate: 0.65 GPM; Maximum input rating: 34,120 BTUs; Minimum temperature: 6.80 to 66 degrees Fahrenheit; Water connection location/size: Bottom/0.5-inch NPT

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8. Natural Gas Tankless Water Heater

Natural Gas Tankless Water Heater

The Fogatti natural gas tankless hot water heater is able to meet all of your hot water needs. No longer do you need to choose between a comfy shower, dish wash and laundry. Gas tankless hot water heaters deliveries endless hot water and keeps everyone happy.

The tankless natural gas water heater heats water instantly with 170,000 BTU, enjoy a comfortable shower without waiting, save your valuable time, energy and water. The capacity is up to 4.2 GPM @ 67℉ Temperature Rise(Equivalent to 6.2 GPM with a 45℉ temp Rise). Perfect for households of 3-4.

Highlighted Features:

  • The tankless natural gas water heater heats water instantly with 170,000 BTU, enjoy a comfortable shower without waiting, save your valuable time, energy and water. The capacity is up to 4.2 GPM @ 67℉ Temperature Rise(Equivalent to 6.2 GPM with a 45℉ temp Rise). Perfect for households of 3-4.
  • The Fogatti natural gas tankless hot water heater is able to meet all of your hot water needs. No longer do you need to choose between a comfy shower, dish wash and laundry. Gas tankless hot water heaters deliveries endless hot water and keeps everyone happy.
  • The Fogatti indoor tankless water heater uses standard 3/4″ NPT water fittings and 3″ Vent Pipe for convenient and quick installation. Also compatible with standard gas pipes making it easier to replace a traditional tank. Plus, advanced venting technology enables more location options: Kitchen, Garage, Basement, Attic and etc.
  • CSA certified in the United states and Canada. The tankless natural gas water heater features multi safety protections: Overheat protection, Flame Failure Protection, Low Water Flow Protection, High Water Pressure Protection, Dry combustion Production and Anti-freeze Protection.
  • Compact design, the Fogatti tankless water heater is only the size of a small suitcase, and the wall-mount design frees up valuable floor space within your home. The burner is manufactured using the latest European technology, high efficiency and energy saving. And the Heat Exchanger is made of oxygen-free copper, highly efficient and durable, it heats water only when you need it and saves on energy costs from day one.

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9. Rinnai RL94IN RRL94iN, 9.8 GPM, Indoor Installation

Rinnai RL94IN RRL94iN, 9.8 GPM, Indoor Installation

Rinnai’s high-efficiency indoor models offer the most advanced technology in non-condensing tankless water heaters. Unlike tank heaters which accumulate rusty sediments, this RL94iN compact water heater has a longer lifespan since water runs continuously through pipes. Enjoy the endless hot water and added energy savings with the addition of Wi-Fi monitoring and recirculation technology for faster and more efficient hot water delivery right out of the faucet!

Highlighted Features:

  • Optimal Water Pressure: High-performance 9.8 GPM hot water flow rate for a powerful, constant stream
  • 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, parts, and labor respectively

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10. Noritz NRC66DVNG Indoor Condensing Direct

Noritz NRC66DVNG Indoor Condensing Direct

The NORITZ NRC66DV is a fully condensing tankless water heater with an advanced heat exchanger design and built-in controller. With flow rates up to 6.5 gallons per minute the NRC66DV delivers the highest flow rates in its category and can be vented using 3″ Schedule 40/80 PVC, PP or CPVC.  Various adapters and terminations are available to allow for a wide array of venting options.

This unit ships complete with a 6′ power cord.  IK-WV-200-1-XX-LF valve kit (required for installation) is sold separately. Common companion items include rain cap (PRC-1), atmospheric conversion kit (SVCK-3) and horizontal termination/intake PVT-HL.

Highlighted Features:

  • Endless hot water
  • Can be vented with Schedule 40 PVC Pipe and Fitting
  • High Efficiency
  • Low Nox
  • Remote thermostat & 6′ power cord included

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