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10 Best gas water heaters of 2025
Save up to 11% off
Best Choice1
Clicked 1,176 times in the last monthRinnaiNEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 11.1 GPM, 199,000 BTU
Key specs-
special features:Indoor/outdoor install
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maximum flow rate:11.1 GPM
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heat output:N/A
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maximum temperature:N/A
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maximum pressure:N/A
9.9Exceptional
Our Rating
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Value for Money2
FOGATTIFOGATTI Natural Gas Tankless Water Heater - Outdoor Installation Up to 8.1 GPM, Gray Instant Hot Water Heater - Instagas Comfort 180S Series
9.8Exceptional
Our Rating
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3
RaneinRanein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Key specs-
special features:Dry Combustion Protection, Flame Failure Protection
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maximum flow rate:3.6 Gallons Per Minute
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heat output:80,000 BTU
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maximum temperature:149 Degrees Fahrenheit
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maximum pressure:N/A
9.7Exceptional
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4
forimoTankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)
Key specs-
special features:Steady Temperature Control
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maximum flow rate:4.74 GPM
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heat output:68000 BTU/hour
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maximum temperature:167 F
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maximum pressure:3.6 PSI
9.4Excellent
Our Rating
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5
NessxaTankless Water Heater Propane with Digital Display, 3.66 GPM 14L Portable Instant Hot Gas Water Heater with Overheating Protection for Indoor and Camping,85300 BTU
9.3Excellent
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AmzgachfktchOutdoor Propane Tankless Water Heater - 6L 1.58 GPM Portable Gas Water Heater with Handle & Overheating Protection, Instant Hot Water for RV Cabin Camping Boat Barn
11% Off9.2Excellent
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7
OrbekNatural Gas Tankless Water Heater - ORBEK 100,000 BTU Up to 4.3 GPM Indoor Installation - CSA Certified On-Demand Instant Hot Water Heater 3/4" NPT Connector Size
9.0Excellent
Our Rating
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8
forimoForimo Tankless Water Heater NG-4.21GPM-16L, Indoor, Instant Hot Gas, Black, Modern Style
Key specs-
special features:Steady Temperature Control
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maximum flow rate:4.21 gallons/min
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heat output:68000 BTU/hour
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maximum temperature:167 F
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maximum pressure:3.6 PSI
8.9Very Good
Our Rating
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9
VELPAXNatural Gas Tankless Water Heater,5.26GPM 20L Outdoor,Instant Hot Natural Gas Water Heater with Fahrenheit Digital Display,Multi-Protection
8.8Very Good
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10
CAMPLUX ENJOY OUTDOOR LIFECAMPLUX Tankless Water Heater Outdoor, 1.32 GPM Portable Propane Camping Water Heater, 5L, AY132, White
Key specs-
special features:Flame Failure Protection
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maximum flow rate:1.32 GPM
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heat output:10 Kilowatts
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maximum temperature:114.8 F
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maximum pressure:3.0 PSI
8.7Very Good
Our Rating
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