10 bestTankless Gas Water Heatersof April 2025
112M consumers helped this year.
1
RINNAI RXP199iN Condensing Tankless Water Heater RXP199 Features 0.96 UEF with 199k BTU and Pump.
Rinnai
9.9
25% off
2
RINNAI RX160iN Condensing Tankless Water Heater RX160 Features 0.95 UEF with 160k BTU.
Rinnai
9.8
3
Ranein Propane Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Ranein
9.6
4
Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM, Outdoor Installation
Rinnai
9.4
15% off
5
RINNAI Ru Series Sensei Se+ Tankless Hot Water Heater: Indoor Installation
Rinnai
9.2
OtherUp to 14% off
Rinnai RUCS65IP Ultra Series Tankless Water Heater, White
Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per Minute
Rheem RTG-70XLP-1 Tankless Water Heater, Grey, Grey
Takagi T-H3M-DV-N Condensing Direct Vent Tankless Water Heater, Natural Gas
6
Rinnai RL75iN Natural Gas Tankless Water Heater, 7.5-Gallons Per Minute
Rinnai
8.9
7
Tankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)
DWALE
8.7
8
Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU
Rinnai
8.4
9
Mizudo Propane Gas Tankless Water Heater 3.6 GPM, 12L Indoor Installation Instant Hot Water Heater
MIZUDO
8.1
10
Rinnai RE140iP Non-Condensing Propane Tankless Water Heater, Up to 5.3 GPM, Indoor Installation, 140,000 BTU
Rinnai
7.9
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