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10 Best gas water heaters of 2025
Save up to 19% off
Best Choice1
Clicked 1,408 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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wattage:N/A
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maximum pressure:N/A
9.9Exceptional
Our Rating
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Value for Money2
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
Key specs-
special features:Anti-scalding, anti-freeze protection
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maximum flow rate:N/A
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heat output:N/A
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wattage:17 Watt-hours
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maximum pressure:N/A
9.7Exceptional
Our Rating
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3
RaneinRanein Propane Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
9.6Exceptional
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4
Ranein2025 GEN II Ranein Propane Gas Tankless Water Heater Max 3.6 GPM, 80,000 BTU Indoor On Demand Instant Hot Water Heater with LED Temperature Control Panel, Vent Pipe
9.5Excellent
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5
NessxaNatural Gas Tankless Water Heater, 14L Instant Hot Water Heater with Fahrenheit Digital Display, Indoor Installation Up to 3.7GPM, 95540BTU
10% Off9.4Excellent
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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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7
forimoTankless Water Heater Natural Gas,4.21GPM 16L Indoor,Instant Hot Gas Water Heater, with Fahrenheit Digital Display,Multi-Protection (Black)
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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wattage:N/A
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maximum pressure:3.6 PSI
9.2Excellent
Our Rating
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8
LiberLiveNatural Gas Tankless Water Heater, Indoor Max 4.2 GPM, 102,000 BTU On Demand Instant Hot Water Heater Natural Gas with LED Temperature Control Panel, 1/2" NPT Connector Size, CSA Certified, Gray
9.0Excellent
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9
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
19% Off8.9Very 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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wattage:10 KW
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maximum pressure:3.0 PSI
8.8Very Good
Our Rating
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