10 bestHome Depot Tankless Hot Water Heaterof December 2025
112M consumers helped this year.
1
FOGATTI RV Tankless Water Heater, InstaShower 8 Plus, Gen 2, with 15 x 15 inches White Door and Remote Controller, DC 12V, Best High Altitude Performance, Ideal for RVers' Everyday Use
FOGATTI
9.9
18% off
2
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey
Rheem
9.8
20% off
3
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Rheem
9.7
10% off
4
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
9.5
5
Tankless Water Heater, Camplux Constant Propane Water Heater, 3.18 GPM On Demand Water Heater, Instant Hot Water Heater, Indoor, Black
CAMPLUX ENJOY OUTDOOR LIFE
9.3
OtherUp to 35% off
CAMPLUX Hot Water Heater 15L (4 Gallons), On-Demand Water Heater Electric Water Heaters with Cord Plug 1.44kW at 120 Volts
Mizudo Propane Gas Tankless Water Heater 3.6 GPM, 80,000 BTU Indoor Installation Instant Hot Water Heater
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
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
6
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
9.1
7
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White
EcoSMART
8.8
5% off
8
FOGATTI Natural Gas Tankless Water Heater, Indoor 4.0 GPM, 90,000 BTU Instant Hot Water Heater, Instagas Classic 90 Series
FOGATTI
8.6
9
Gleyi 6L Tankless Water Heater, 1.58 GPM Portable Tankless Water Heater, On Demand Instant Hot Water Heater with Overheating Protection, for RV Camping, Outdoor Shower
Gleyi
8.4
10
Onsen - 14L Direct Vent Tankless Propane Water Heater - Electronic Ignition - Hot Water On Demand - for Indoor Residential Tiny Home Use - with LED Screen & Display Panel - 120v
ONSEN
8.1
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