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10 bestNatural Gas Water Heatersof November 2025

112M consumers helped this year.

1

Rinnai i060CN Condensing Gas Boiler, Natural Gas (60K BTU)
Rinnai i060CN Condensing Gas Boiler, Natural Gas (60K BTU)

Rinnai

9.8

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2

Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU
Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU

Rinnai

9.6

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3

RINNAI Ru Series Sensei Se+ Tankless Hot Water Heater: Indoor Installation
RINNAI Ru Series Sensei Se+ Tankless Hot Water Heater: Indoor Installation

Rinnai

9.3

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4

RINNAI Ru Series Sensei Se+ Tankless Hot Water Heater: Indoor Installation
RINNAI Ru Series Sensei Se+ Tankless Hot Water Heater: Indoor Installation

Rinnai

9.0

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20% off

5

Ranein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Ranein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater

Ranein

8.8

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Related productsUp to 35% off

Tankless Water Heater Natural Gas, Camplux 5.28 GPM On Demand Instant Hot Water Heater for Whole House, Indoor

Tankless Water Heater Natural Gas, Camplux 5.28 GPM On Demand Instant Hot Water Heater for Whole House, Indoor

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Onsen - 14L Direct Vent Tankless Natural Gas Water Heater - Electronic Ignition - Hot Water On Demand - for Indoor Residential Use - with LED Screen & Display Panel - 120v

Onsen - 14L Direct Vent Tankless Natural Gas Water Heater - Electronic Ignition - Hot Water On Demand - for Indoor Residential Use - with LED Screen & Display Panel - 120v

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Tankless Water Heater, GASLAND Outdoors BE158B 1.58GPM 6L Portable Gas Water Heater, Instant Propane Water Heater, Overheating Protection, Easy to Install, Use for RV Cabin Barn Camping Boat, Black

Tankless Water Heater, GASLAND Outdoors BE158B 1.58GPM 6L Portable Gas Water Heater, Instant Propane Water Heater, Overheating Protection, Easy to Install, Use for RV Cabin Barn Camping Boat, Black

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GASLAND 2.64 GPM Indoor Natural Gas Tankless Water Heater, 68,000 BTU Residential On Demand Gas Water Heater, 120 Volt Multiple Points of Use Water Heater

GASLAND 2.64 GPM Indoor Natural Gas Tankless Water Heater, 68,000 BTU Residential On Demand Gas Water Heater, 120 Volt Multiple Points of Use Water Heater

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6

Rinnai RL75iN Natural Gas Tankless Water Heater, 7.5-Gallons Per Minute
Rinnai RL75iN Natural Gas Tankless Water Heater, 7.5-Gallons Per Minute

Rinnai

8.5

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7

Rinnai RU130iN Condensing Tankless Hot Water Heater, 7 GPM, Natural Gas, Indoor Installation
Rinnai RU130iN Condensing Tankless Hot Water Heater, 7 GPM, Natural Gas, Indoor Installation

Rinnai

8.2

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5% off

8

FOGATTI Propane Gas Tankless Water Heater, Indoor 13L, 4.0 GPM, 90,000 BTU Instant Hot Water Heater, InstaGas Classic 90 Series
FOGATTI Propane Gas Tankless Water Heater, Indoor 13L, 4.0 GPM, 90,000 BTU Instant Hot Water Heater, InstaGas Classic 90 Series

FOGATTI

7.9

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9

Rinnai V53DeN Tankless Hot Water Heater, 5.3 GPM, Natural Gas, Outdoor Installation
Rinnai V53DeN Tankless Hot Water Heater, 5.3 GPM, Natural Gas, Outdoor Installation

Rinnai

7.6

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10

Mizudo Natural Gas Tankless Water Heater 3.6 GPM, 80,000 BTU Indoor Installation Instant Hot Water Heater
Mizudo Natural Gas Tankless Water Heater 3.6 GPM, 80,000 BTU Indoor Installation Instant Hot Water Heater

MIZUDO

7.3

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