10 bestWatts Tankless Hot Water Heatersof December 2025
112M consumers helped this year.
7% off
1
Tankless Water Heater Propane, 4.21GPM 16L Indoor,Instant Hot Propane Gas Water Heater,Constant Propane Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)
DWALE
9.9
18% off
2
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey
Rheem
9.8
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
9.7
4
CAMPLUX Tankless Water Heater, 16L On Demand Propane Water Heater, Instant Hot Water Heater, Indoor, Gray
CAMPLUX ENJOY OUTDOOR LIFE
9.6
5
Tankless Water Heater Electric 14kW 240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display Easy Installation, for Residential Sink & Shower, 58A Gray
thermomate
9.4
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
Camplux 5L Portable Propane Gas Tankless Water Heater, 1.32 GPM Tankless Water Heater with 1.2 GPM Water Pump, Black
Watts LFTV15PRC 3/4 Tankless Water Heater Valve Set with Relief Valve, 3/4"
HYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass
6
Watts Premier 500800 Premier Hot Water Recirculation Pump, Blue
Watts Premier
9.2
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, Side Connections
thermomate
9.0
8
Mizudo Propane Gas Tankless Water Heater 3.6 GPM, 80,000 BTU Indoor Installation Instant Hot Water Heater
MIZUDO
8.8
14% off
9
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
Bosch
8.5
10
thermomate Mini Tank Water Heater Electric UL Listed, ES150B 1.3 Gallon Point of Use Under Sink Water Heater, 120V Corded Wall or Floor Mounted
thermomate
8.3
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