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10 bestResidential Hot Water Heatersof December 2025

112M consumers helped this year.

1

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

9.8

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2

Corro-Protec™ Powered Anode Rod for Water Heater, 20-Year Warranty, Eliminates Rotten Egg/Sulfur Smell within 24 hours, Stops Corrosion and Reduces Limescale, Electrical Anode Rod Made of Titanium
Corro-Protec™ Powered Anode Rod for Water Heater, 20-Year Warranty, Eliminates Rotten Egg/Sulfur Smell within 24 hours, Stops Corrosion and Reduces Limescale, Electrical Anode Rod Made of Titanium

Corro-Protec

9.6

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3

thermomate Tank Water Heater Electric, 10 Gallon Small Point of Use Hot Water Heater, 120 Volt 1500W Compact Residential Water Heater, Adjustable Thermostat, UL Listed (ES1000)
thermomate Tank Water Heater Electric, 10 Gallon Small Point of Use Hot Water Heater, 120 Volt 1500W Compact Residential Water Heater, Adjustable Thermostat, UL Listed (ES1000)

thermomate

9.4

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4

Tankless Water Heater Electric 24kW 240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display for Residential Whole House Shower, 102A Gray
Tankless Water Heater Electric 24kW 240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display for Residential Whole House Shower, 102A Gray

thermomate

9.2

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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

8.9

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Related productsUp to 5% off

Rheem RTEX-27 240V 3 Heating Chambers Residential Tankless Water Heater

Rheem RTEX-27 240V 3 Heating Chambers Residential Tankless Water Heater

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thermomate Electric Tankless Water Heater, 11kW at 240 Volt, On Demand Instant Hot Water Heater, Self Modulating Energy Saving, Save Space, 2.15GPM at 35°F Rise, Side Connections

thermomate Electric Tankless Water Heater, 11kW at 240 Volt, On Demand Instant Hot Water Heater, Self Modulating Energy Saving, Save Space, 2.15GPM at 35°F Rise, Side Connections

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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

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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

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6

CAMPLUX Tank Water Heater Electric,18 Gallon Point of Use Instant Hot Water Heater 120v 1500W, Built-in Reliable T&P Relief Valve, Anode Rod for Hot Water Heater, UL Listed
CAMPLUX Tank Water Heater Electric,18 Gallon Point of Use Instant Hot Water Heater 120v 1500W, Built-in Reliable T&P Relief Valve, Anode Rod for Hot Water Heater, UL Listed

CAMPLUX ENJOY OUTDOOR LIFE

8.7

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20% off

7

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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17% off

8

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

8.1

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7% 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

7.9

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10

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

MIZUDO

7.6

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