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10 bestHigh Efficiency Water Heaterof December 2024

112M consumers helped this year.

1

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

9.8

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2

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

9.6

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3

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

9.4

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4

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

9.2

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5

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

9.0

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

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T-H3-DV-P Indoor Tankless High Efficiency Condensing Water Heater (LP)

T-H3-DV-P Indoor Tankless High Efficiency Condensing Water Heater (LP)

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

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

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Carivia Hot Water Recirculating Pump,115V Circulation Pump,3-Speed Control Recirculation Pump with NPT 1'' Flanges for Solar Water Heater Boiler Circulating Heating

Carivia Hot Water Recirculating Pump,115V Circulation Pump,3-Speed Control Recirculation Pump with NPT 1'' Flanges for Solar Water Heater Boiler Circulating Heating

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6

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

8.7

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10% off

7

Ranein 65,000 BTU RV Tankless Water Heater, High Altitude Available, 12V, CSA Certificated, with Black Door and Multi-function Controller, On Demand Instant Hot Water Heater, Compatible with all RVs
Ranein 65,000 BTU RV Tankless Water Heater, High Altitude Available, 12V, CSA Certificated, with Black Door and Multi-function Controller, On Demand Instant Hot Water Heater, Compatible with all RVs

Ranein

8.5

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8

ThermoDrain TDH3320B-DR-PEX high performance drain water heat recovery unit - factory installed PEX fittings
ThermoDrain TDH3320B-DR-PEX high performance drain water heat recovery unit - factory installed PEX fittings

ThermoDrain

8.2

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9

Tankless Water Heater, Camplux Constant Propane Water Heater, 3.18 GPM On Demand Water Heater, Instant Hot Water Heater, Indoor, Black
Tankless Water Heater, Camplux Constant Propane Water Heater, 3.18 GPM On Demand Water Heater, Instant Hot Water Heater, Indoor, Black

CAMPLUX ENJOY OUTDOOR LIFE

8.0

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10

1000W Immersion Heater, Gesail Bucket Water Heater with Heating Element, Submersible Heater with Thermostat and Auto Shutoff Protection, Perfect for Home Travel and Winter Job
1000W Immersion Heater, Gesail Bucket Water Heater with Heating Element, Submersible Heater with Thermostat and Auto Shutoff Protection, Perfect for Home Travel and Winter Job

GESAIL

7.7

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