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10 bestHouse Water Heatersof December 2025

112M consumers helped this year.

1

Senville 1500W Space Heater for Indoor Use, Electric, Ceramic, Remote, Digital Thermostat, Overheat Protection, Vertical & Horizontal Operation
Senville 1500W Space Heater for Indoor Use, Electric, Ceramic, Remote, Digital Thermostat, Overheat Protection, Vertical & Horizontal Operation

Senville

9.7

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18% off

2

Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey

Rheem

9.4

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3

Tankless Water Heater Electric 27kW 208~240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display for Residential Whole House Shower, 114A GRAY
Tankless Water Heater Electric 27kW 208~240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display for Residential Whole House Shower, 114A GRAY

thermomate

9.2

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4

ALECOIL 100,000 BTU Hydronic Hot Water Hanging Unit Heater with Water Temperature Control Switch HHA100 Water to Air Heat Exchanger with Fan for Outdoor Wood Furnaces, Garage, and Greenhouse Heating
ALECOIL 100,000 BTU Hydronic Hot Water Hanging Unit Heater with Water Temperature Control Switch HHA100 Water to Air Heat Exchanger with Fan for Outdoor Wood Furnaces, Garage, and Greenhouse Heating

Alecoilca

8.9

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5

ALECOIL 50,000 BTU Hydronic Hot Water Hanging Unit Heater with Water Temperature Control Switch HHA50 Water to Air Heat Exchanger with Fan for Outdoor Wood Furnaces, Garage and Warehouse Heating
ALECOIL 50,000 BTU Hydronic Hot Water Hanging Unit Heater with Water Temperature Control Switch HHA50 Water to Air Heat Exchanger with Fan for Outdoor Wood Furnaces, Garage and Warehouse Heating

Alecoilca

8.7

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Related productsUp to 35% off

CAMPLUX Residential Tankless Water Heater 27kW 240V, Instant Hot Water Heaters, Self-modulating Technology, Multipoint Use Electric Water Heater with Digital Display, for Whole House Shower, Black

CAMPLUX Residential Tankless Water Heater 27kW 240V, Instant Hot Water Heaters, Self-modulating Technology, Multipoint Use Electric Water Heater with Digital Display, for Whole House Shower, Black

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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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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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Titan Tankless N-210 Whole House Water Heater System

Titan Tankless N-210 Whole House Water Heater System

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20% off

6

Ranein Electric Tankless Water Heater, 18kW 240V on Demand Instant Endless Water Heater with LED Temperature Display for Residential Whole House Shower, Space Saving
Ranein Electric Tankless Water Heater, 18kW 240V on Demand Instant Endless Water Heater with LED Temperature Display for Residential Whole House Shower, Space Saving

Ranein

8.4

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20% off

7

Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

Rheem

8.1

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8

Natural Gas Tankless Water Heater, MIZUDO 7.5 GPM, 170,000 BTU, CSA Certified, Indoor Installation Instant Hot Water Heater for Residential Whole House
Natural Gas Tankless Water Heater, MIZUDO 7.5 GPM, 170,000 BTU, CSA Certified, Indoor Installation Instant Hot Water Heater for Residential Whole House

MIZUDO

7.8

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10% off

9

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

7.6

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10

Thermomate Mini Tank Electric Water Heater ES150 1.3 Gallons Point of Use Water Heater for Instant Hot Water Under Kitchen Sink 120V 1440W
Thermomate Mini Tank Electric Water Heater ES150 1.3 Gallons Point of Use Water Heater for Instant Hot Water Under Kitchen Sink 120V 1440W

thermomate

7.3

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