10 Best Natural Gas Water Heaters 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 645 products, scanning 2770 reviews, spending more than 36 hours of research and speaking with our test users, we think the Rinnai V65IN Tankless Water Heater is the one of the Best Natural Gas Water Heater on the market.

# Image Name Brand Price
1
⭐Best Choice
Rinnai V65IN Tankless Water Heater
Rinnai V65IN Tankless Water Heater, Large, V65iN-Natural Gas/6.5 GPM Check price Rinnai $$$$$ Check price
2
Best under $500
Camplux Tankless Water Heater Natural Gas
Camplux Tankless Water Heater Natural Gas,3.18 GPM High Efficiency Instant Hot Water Heater with Celsius Digital Display,Residential Natural Gas Water Heater for 2-3 Persons Bathroom Indoor Use,Black Check price CAMPLUX ENJOY OUTDOOR LIFE $$$$$ Check price
3 Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation Check price Rinnai $$$$$ Check price
4
💲Best value for the money
Marey Power Gas 10L 2.7  GPM Natural Gas Digital Panel
Marey Power Gas 10L 2.7 GPM Natural Gas Digital Panel Tankless Water Heater Check price MAREY $$$$$ Check price
5 Eccotemp i12-NG Tankless Water Heater Eccotemp i12-NG Tankless Water Heater Check price Eccotemp $$$$$ Check price
6 A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 gal Check price A. O. Smith $$$$$ Check price
7 CAMPLUX ENJOY OUTDOOR LIFE CM264-NG Natural Gas Residential Water Heater CAMPLUX ENJOY OUTDOOR LIFE CM264-NG Natural Gas Residential Water Heater Check price CAMPLUX ENJOY OUTDOOR LIFE $$$$$ Check price
8
Best under $50
Ridgeyard Digital Display Natural Gas Tankless Instant Hot Water Heater
Ridgeyard Digital Display Natural Gas Tankless Instant Hot Water Heater Boiler Burner with Shower Head Indoor Home Bathroom Supplies (8L Natural Gas) Check price Ridgeyard $$$$$ Check price
9 Rheem RTG-84XLN-1 Tankless Water Heater Rheem RTG-84XLN-1 Tankless Water Heater, Grey Check price Rheem $$$$$ Check price
10
👑Premium Pick
Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater
Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe Check price Rinnai $$$$$ Check price

Rinnai V65IN Tankless Water Heater – Best Overall Natural Gas Water Heater

Rinnai V65IN Tankless Water Heater
  • Endless hot water for your entire home
  • V65iN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
  • Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
  • 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)

Camplux Tankless Water Heater Natural Gas – Best under $500

Camplux Tankless Water Heater Natural Gas
  • Sleek,Modern,Compact Design -Trendy and modern design with unique black glassy front panel featuring an easy to use LED touchscreen controls with Celsius Digital & Display.The compact size - (L)14.4 x (W)4.7 x (H)25.4 inch tankless water heater saves more space than traditional tanks.
  • On-Demand Tankless Water Heater-High water capacity range 0.8 - 4.8 GPM, Camplux high efficiency 3.18 GPM natural gas tankless water heater delivers 3.18 gallons per minute of on-demand endless hot water ensures instant hot water for 2-3 persons home comfortable shower.
  • Multiple Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety. Fully automatic temperature controls with an energy saving mode and child lock technology.
  • Convenient, Easy Installation -Uses standard 1/2" NPT water fittings and comes with 2.3 inch horizontal venting pipe allowing for convenient and quick installation,great for whole home,small cabins and remote apartments use. You can take Camplux customized wall thimble-WT236 for perfect indoor use.
  • Considerate Customer Service- Here at Camplux, customer service is everything! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.

Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation

Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation
  • Endless hot water for your entire home
  • V65eN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Outdoor Installation Only
  • Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
  • 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)

Marey Power Gas 10L 2.7 GPM Natural Gas Digital Panel – Best Budget Natural Gas Water Heater

Marey Power Gas 10L 2.7  GPM Natural Gas Digital Panel
  • Digital Temperature Display
  • Compact design saves space and allows for easy installation just about anywhere
  • Does not require electricity (operates with 2 D Cell battery)
  • Only uses gas while water is flowing
  • Saves water and up to 60% less electricity than conventional tank water heater, making it cost effective and

Eccotemp i12-NG Tankless Water Heater

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 needed, reducing energy consumption
  • 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
  • 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)
  • Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation

A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater

A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater
  • Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
  • Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
  • Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
  • Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
  • Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

CAMPLUX ENJOY OUTDOOR LIFE CM264-NG Natural Gas Residential Water Heater

CAMPLUX ENJOY OUTDOOR LIFE CM264-NG Natural Gas Residential Water Heater
  • [Ease to Use] For whole home on demand indoor use with safe, efficient power ventilation , perfect for any small homes, cabins or apartments.
  • [Modern Design] Exclusive color digital temperature display for easy to read.
  • [Saving More Energy] Eco and Full gas switch for energy saving and get ideal hot water temperature.
  • [More Safety] Flame-out protection, anti-freezing protection, over-heating protection, air flow pressure switch protection to ensure the safety.
  • [Controls Water Temperature Easily ] Uses standard 1/2" NPT water fittings and is equipped with easy to use manual water temperature controls.

Ridgeyard Digital Display Natural Gas Tankless Instant Hot Water Heater – Best under $50

Ridgeyard Digital Display Natural Gas Tankless Instant Hot Water Heater
  • Ion flame inspection : to automatically shut down gas power under unrexpectable flameout.
  • Over water pressure protection function : to automatically decrease pressure under excessive high water pressure
  • Magnificent thin-shaped appearance,Controller design:both cold water and warm water can be properly
  • Low water-pressured startup : the water control linkage valve makes the heater start up under low pressure
  • High efficient energy saving : the heater exchanger and main burner adopt mostly advanced energy-save

Rheem RTG-84XLN-1 Tankless Water Heater

Rheem RTG-84XLN-1 Tankless Water Heater
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use outdoors with freeze protection up to -30 degrees
  • Fuel Type: Natural Gas

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater – Premium Pick

Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater
  • INDOOR installation only. Fuel Type: NATURAL GAS.
  • Concentric or PVC venting option
  • Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor
  • The space-saving design allows Indoor Installation type
  • Ultra low NOx emissions
  • 199,000 max BTU

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