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10 bestElectric Tankless Hot Water Heaterof October 2025

112M consumers helped this year.

1

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

10.0

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6% 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

10.0

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3

Rheem 11kW 240V Tankless Electric Water Heater
Rheem 11kW 240V Tankless Electric Water Heater

Rheem

9.9

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10% off

4

Ranein Electric Tankless Water Heater, 11Kw 240v,Instant Hot Water Heater with LED Temperature Display, Energy Saving, Save Space
Ranein Electric Tankless Water Heater, 11Kw 240v,Instant Hot Water Heater with LED Temperature Display, Energy Saving, Save Space

Ranein

9.7

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5

VEVOR Instant Water Heater, 18kw Electric Tankless Water Boiler, Digital Temperature Display & Easy Installation & 24-Hour Water Supply, for Kitchen Bathroom Shower Mall Salon Shampoo ETL Listed
VEVOR Instant Water Heater, 18kw Electric Tankless Water Boiler, Digital Temperature Display & Easy Installation & 24-Hour Water Supply, for Kitchen Bathroom Shower Mall Salon Shampoo ETL Listed

VEVOR

9.6

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Related productsUp to 15% 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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EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

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Stiebel Eltron 200066 DHX 12-2 Plus Point-of-Use Tankless Electronic Water Heater, 240V, 12000 Watts

Stiebel Eltron 200066 DHX 12-2 Plus Point-of-Use Tankless Electronic Water Heater, 240V, 12000 Watts

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Marey ECO150 Electric Tankless Water Heater, 14.5kW 240V, Smart Technology, Unlimited On-Demand Hot Water Heater

Marey ECO150 Electric Tankless Water Heater, 14.5kW 240V, Smart Technology, Unlimited On-Demand Hot Water Heater

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6

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

Rheem

9.4

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7

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
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

thermomate

9.3

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8

CAMPLUX Tankless Electric Water Heaters 18kW, On Demand Hot Water Heater Electric with Digital Display 240V for Shower, White
CAMPLUX Tankless Electric Water Heaters 18kW, On Demand Hot Water Heater Electric with Digital Display 240V for Shower, White

CAMPLUX ENJOY OUTDOOR LIFE

9.1

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10% off

9

Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, Gray
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, Gray

Rheem

8.9

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10

Stiebel Eltron Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White - 23, Gloss White
Stiebel Eltron Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White - 23, Gloss White

Stiebel Eltron

8.8

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