Best Rated Natural Gas Hot Water Heaters In September 2026

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In this review, we evaluate the Best Rated Natural Gas Hot Water Heaters available today. We have also included a comprehensive guide that helps you pick the best product. We hope that by going through the top 10 Best Rated Natural Gas Hot Water Heaters reviews below, you can effectively narrow down your choice and find the most appropriate one you need.

To help you in your search, we have completed this list of the Best Rated Natural Gas Hot Water Heaters.

Top Rated Best Rated Natural Gas Hot Water Heaters Of 2026

Rank	Product Name	Score
1	Eccotemp i12-NG Tankless Water Heater Buy Now	9.7 Buy Now
2	thermomate ZERO16 4.23 GPM Propane Tankeless Gas Water Heater for Outdoor, Low Pressure Buy Now	9.5 Buy Now
3	Eccotemp fvi12-NG FVI-12 Natural Gas, 3.5 GPM, High Capacity Tankless Water Heater, White Buy Now	9.1 Buy Now
4	EZ 101 Tankless Water Heater - Propane (LPG) - Portable - Battery Powered Buy Now	8.8 Buy Now
5	Rinnai V75iN High Efficiency Tankless Hot Water Heater, 7.5 GPM - Natural Gas: Buy Now	8.6 Buy Now
6	Eccotemp 45H-LP Outdoor Liquid Propane Tankless Water Heater Buy Now	8.3 Buy Now
7	Rinnai RUR Series Sensei SE+ Tankless Hot Water Heater: Indoor Installation - RUR199iN Buy Now	8.1 Buy Now
8	Eccotemp EL22i Indoor Natural Gas Tankless Water Heater Horizontal Bundle Buy Now	7.8 Buy Now
9	Noritz NRC66DVNG Indoor Condensing Direct Tankless Hot Water Heater, 6.6 GPM - Natural Buy Now	7.5 Buy Now
10	Eccotemp 45HI-NG 6.8 GPM Natural Gas Whole House Tankless Water Heater Buy Now	7.2 Buy Now

1. Eccotemp i12-NG Tankless Water Heater

• Sleek, modern design with black tempered glass front panel featuring an easy to use led display controls
• Uses standard 1/2" npt water fittings and comes with horizontal venting allowing for a convenient and quick installation
• Whole home indoor, gas powered tankless water heater, rated at 3 gpm that activates only on demand and no pilot light needed, reducing energy consumption
• Features fully automatic temperature controls with an energy saving mode and child lock technology
• Safe electronic ignition system, plugs into standard 110v electrical outlet with ul-listed cord. field tested to 5500 ft. elevation (not recommended to be used any higher)

2. thermomate ZERO16 4.23 GPM Propane Tankeless Gas Water Heater for Outdoor, Low Pressure

• Easy to install equipped with 1/2" bsp water fittings and manual water temperature controls make it easy to install and use. please verify it's the right size you need: net weight 23.4lb, size 25.6(l)x7.5(h)x15.7(w), maximum power output 109,000btu/hour (32kw).
• More safety flame-out protection, anti-freezing protection, over heating protection to ensure the family safety. automatically decrease water pressure between 0.7-138psi. the anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. high water temperature protection over185 f. shut off gas supply automa...
• Energy saving rated at 4.23 gpm, provide endless hot water on demand and only as needed, no need to preheat making it more efficient and energy saving.
• 0.7psi startup starts up with only 0.7 psi of water pressure, no need pressurizer pump anymore. outfitted with 2 magnetic water flow sensors, which allows the unit to work at super low water pressure. suit for rural areas, rv's and boats.
• Stylish design features of compact and space-saving design with minimal noise output which is portable for outdoors. it can bring an amazing hot shower for you when you are camping, to the beach, etc. besides, you can also wash your pets with this tankless water heater.

3. Eccotemp fvi12-NG FVI-12 Natural Gas, 3.5 GPM, High Capacity Tankless Water Heater, White

• 1.07 a
• Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.
• For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.
• Safe electronic ignition system, plugs into standard 120v electrical outlet with ul-listed cord.
• Uses standard 1/2" npt water fittings and is equipped with easy to use manual water temperature controls.
• Whole home indoor, gas powered tankless water heater, rated at 3.6 gpm that activates only when in use, making it an energy saver.

4. EZ 101 Tankless Water Heater - Propane (LPG) - Portable - Battery Powered

• Battey powered ignition - 2 "d" cell battteries not included
• Easy portability - only 14 lbs
• Great for use at campsites, while fishing, while hunting, or any where hot water is needed.

5. Rinnai V75iN High Efficiency Tankless Hot Water Heater, 7.5 GPM - Natural Gas:

• Residential factory warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
• Control-r 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
• Endless hot water for your entire home
• Up to 7.5 gpm hot water flow rate (varies by groundwater temp)
• V75in he high efficiency tankless hot water heater - natural gas: indoor installation only

6. Eccotemp 45H-LP Outdoor Liquid Propane Tankless Water Heater

• The outdoor installation will save space in your home and because it is compact and quiet, you will barely notice it is there.
• Whole home outdoor,propane gas powered tankless water heater, rated at 6.8 gpm that activates only when in use, making it an energy effiecient and perfrect for any home. apartment or townhome!
• The eccotemp 45h/hi series is csa certified for us and canadian use guaranteeing a safe, easy, and enjoyable installation experience.
• Comes with a temperature and pressure relief valve, a gas shut-off valve and is equipped with 3/4" npt fittings.
• No venting required for this model, making the installation process quick, easy and hassle free.

7. Rinnai RUR Series Sensei SE+ Tankless Hot Water Heater: Indoor Installation - RUR199iN

• Control-r 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
• Residential factory warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
• Up to 11 gpm hot water flow rate (varies by groundwater temp)
• Rur199in sensei se+ super high efficiency tankless hot water heater - natural gas: indoor installation only
• Endless hot water for your entire home. energy factor is 0.96

8. Eccotemp EL22i Indoor Natural Gas Tankless Water Heater Horizontal Bundle

9. Noritz NRC66DVNG Indoor Condensing Direct Tankless Hot Water Heater, 6.6 GPM - Natural

• Low nox
• Endless hot water
• High efficiency
• Can be vented with schedule 40 pvc pipe and fitting
• Remote thermostat & 6' power cord included

10. Eccotemp 45HI-NG 6.8 GPM Natural Gas Whole House Tankless Water Heater

• Whole home indoor,natural gas powered tankless water heater, rated at 6.8 gpm that activates only when in use, making it an energy effiecient and perfrect for any home. apartment or townhome!
• 4" venting is required for the indoor models. venting is available for purchase separately or you can purchase the unit and vent kit as a bundle.
• The eccotemp 45h/hi series is csa certified for us and canadian use guaranteeing a safe, easy, and enjoyable installation experience.
• Comes with a temperature and pressure relief valve, a gas shut-off valve and is equipped with 3/4" npt fittings.
• The indoor installation will save space in your home and because it is compact and quiet, you will barely notice it is there.