10 bestHouse Electric Tankless Water Heaterof November 2025
112M consumers helped this year.
18% off
1
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey
Rheem
10.0
2
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
20% off
3
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
9.9
20% off
4
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Rheem
9.7
5
Stiebel Eltron Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White - 23, Gloss White
Stiebel Eltron
9.5
OtherUp to 35% off
Tankless Water Heater, GASLAND Outdoors BE158B 1.58GPM 6L Portable Gas Water Heater, Instant Propane Water Heater, Overheating Protection, Easy to Install, Use for RV Cabin Barn Camping Boat, Black
Stiebel Eltron DHC-E 8/10 Tankless Electric Water Heater, Gloss White
VEVOR Instant Water Heater, 8kw On Demand Electric Tankless Water Boiler, Digital Temperature Display & Easy Installation & 24-Hour Water Supply, for Kitchen Bathroom Shower Mall Salon ETL Listed
Ranein Electric Tankless Water Heater, 11Kw 240v, On Demand Instant Water Heater with CSA Certification, IPX4 Waterproof, LED Temperature Display for Bathroom, Self Modulating Energy Saving Save Space
6
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
7
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5
EcoSMART
9.1
8
CAMPLUX Residential Tankless Water Heater 27kW 240V, Instant Hot Water Heaters, Self-modulating Technology, Multipoint Use Electric Water Heater with Digital Display, for Whole House Shower, Black
CAMPLUX ENJOY OUTDOOR LIFE
8.9
9
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, Gray
Rheem
8.6
10
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
8.4
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