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10 bestGas Water Heatersof December 2025

112M consumers helped this year.

1

RINNAI RXP199iN Condensing Tankless Water Heater RXP199 Features 0.96 UEF with 199k BTU and Pump.
RINNAI RXP199iN Condensing Tankless Water Heater RXP199 Features 0.96 UEF with 199k BTU and Pump.

Rinnai

9.9

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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

9.8

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3

Suburban Manufacturing Suburban Co 5238A Sw6D W/H 6 Gal Dsi
Suburban Manufacturing Suburban Co 5238A Sw6D W/H 6 Gal Dsi

Suburban

9.6

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10% off

4

Tankless Water Heater Propane, 4.21GPM 16L Indoor,Instant Hot Propane Gas Water Heater,Constant Propane Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)
Tankless Water Heater Propane, 4.21GPM 16L Indoor,Instant Hot Propane Gas Water Heater,Constant Propane Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)

DWALE

9.4

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5

Tankless Water Heater Propane, Camplux 3.18 GPM Instant Hot Water Heater with Fahrenheit Digital Display, Residential Propane Gas Water Heater for 2-3 Persons Bathroom Indoor Use, White
Tankless Water Heater Propane, Camplux 3.18 GPM Instant Hot Water Heater with Fahrenheit Digital Display, Residential Propane Gas Water Heater for 2-3 Persons Bathroom Indoor Use, White

CAMPLUX ENJOY OUTDOOR LIFE

9.1

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Related productsUp to 35% off

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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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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Camplux Tankless Water Heater, 1.32 GPM Portable Propane Outdoor Camping Water Heater, 5L, AY132, White

Camplux Tankless Water Heater, 1.32 GPM Portable Propane Outdoor Camping Water Heater, 5L, AY132, White

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Camplux 5L 1.32 GPM Outdoor Portable Propane Gas Tankless Water Heater with 1.2 GPM Water Pump

Camplux 5L 1.32 GPM Outdoor Portable Propane Gas Tankless Water Heater with 1.2 GPM Water Pump

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5% off

6

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

8.8

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20% off

7

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

8.6

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8

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

8.3

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9

CAMPLUX 102,000 BTU Propane Tankless Water Heater Indoor 16L, Instant Hot Gas Water Heater CX422, White …
CAMPLUX 102,000 BTU Propane Tankless Water Heater Indoor 16L, Instant Hot Gas Water Heater CX422, White …

CAMPLUX ENJOY OUTDOOR LIFE

8.0

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10

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

CAMPLUX ENJOY OUTDOOR LIFE

7.7

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