10 bestElectric Tankless Hot Water Heaterof June 2026
112M consumers helped this year.
1
Stiebel Eltron Tankless Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White
Stiebel Eltron
9.9
18% off
2
Tankless Water Heater Electric, ThermoMate 14kW at 240 Volt, On Demand Instant Hot Water Heater for Shower, Self-Modulating Save Energy, Save Space, 2.66GPM at 35°F Rise ET140
thermomate
9.8
6% off
3
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Rheem
9.7
6% off
4
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey
Rheem
9.6
7% off
5
Rheem RTEX-27 240V 3 Heating Chambers Residential Tankless Water Heater
Rheem
9.4
OtherUp to 6% off
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, Gray
Atmor 29kW Tankless Water Heater Electric 240 Volt 5.4GPM, Self-Modulating Tech Multi-Application for Whole House, Hot Water on Demand, Digital Temperature Display 2023 Upgraded version Light Gray
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
Eemax HA013240 240V 13 kW Electric Tankless Water Heater
6
EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating Technology
EcoSMART
9.1
7
Rheem 8kW 240V Tankless Electric Water Heater
Rheem
8.9
17% off
8
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
EcoSMART
8.6
9
Rheem 11kW 240V Tankless Electric Water Heater
Rheem
8.3
10
EcoSmart ECOS 18 Tankless Electric Water Heater, 18 Kw at 240 Volts, 75 Amps with Patented Self Modulating Technology
Ecosmart US
8.1
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