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7 ThermoMate products rated

ThermoMate tankless water heaters compared (2026)

Every ThermoMate product we review, sorted by rating. The ThermoMate 14 kW Electric, 240V leads with 7.9/10.

Category
Rating

7 products

7.9/10
ThermoMate 14 kW Electric, 240V
3.4 GPM · 14 kW · 240 VThermoMate 14 kW Electric, 240V$249.99 on Sep 30, 2026, may have changedSpec-based rating
7.8/10
ThermoMate CZ422LP Propane Indoor
5 GPM · 113,000 BTU/h · 120 VThermoMate CZ422LP Propane Indoor$399.99 on Sep 30, 2026, may have changedSpec-based rating
7.7/10
ThermoMate Condensing Natural Gas
5.28 GPM · 114,000 BTU/h · 120 VThermoMate Condensing Natural Gas$559.99 on Sep 30, 2026, may have changedSpec-based rating
7.6/10
ThermoMate Condensing Propane
5.28 GPM · 114,000 BTU/h · 120 VThermoMate Condensing Propane$559.99 on Sep 30, 2026, may have changedSpec-based rating
6.8/10
ThermoMate 3" Vent Pipe Kit
ThermoMate 3" Vent Pipe Kit$249.99 on Sep 30, 2026, may have changedSpec-based rating
6.8/10
ThermoMate CZ422NG Natural Gas Indoor
5 GPM · 113,000 BTU/h · 120 VThermoMate CZ422NG Natural Gas Indoor$399.99 on Sep 30, 2026, may have changed161 buyer reviews
6.2/10
ThermoMate 27 kW Electric
6.6 GPM · 27 kW · 240 VThermoMate 27 kW Electric$446.49 on Sep 30, 2026, may have changed36 buyer reviews

Product images: Amazon listings

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All tankless water heater brands →Rheem →Rinnai →Ranein →Stiebel Eltron →Noritz →Westinghouse →APUS →EcoSmart →Bosch →CAMPLUX →MIZUDO →Vancepic →VELPAX →WINTEMP →Eccotemp →GASLAND →LiberLive →Novieex →Takagi →VEVOR →