10 bestIndoor Tankless Electric Hot Water Heatersof March 2026

Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White

5% off

EcoSMART

9.6

Tankless Water Heater Electric 18kW 240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display Easy Installation, for Residential Whole House Shower, 76A GRAY

thermomate

9.5

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

18% off

thermomate

9.3

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

5% off

Rheem

9.1

OtherRelated productsUp to 7% off

Rheem 11kW 240V Tankless Electric Water Heater

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

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

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

RINNAI V Series He Tankless Hot Water Heater: Indoor Installation

Rinnai

8.8

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

Stiebel Eltron

8.6

CAMPLUX Hot Water Heater 15L (4 Gallons), On-Demand Water Heater Electric Water Heaters with Cord Plug 1.44kW at 120 Volts

20% off

CAMPLUX ENJOY OUTDOOR LIFE

8.3

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

10% off

VEVOR

8.0

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

6% off

Rheem

7.8