ThermoMate water heater prices
15 ThermoMate water heaters compared across stores: tankless by price per GPM, heat pump tanks by price per gallon.
Gas Tankless Water Heaters
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| Water heater | Store | Checked | Buy | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ThermoMate CZ264NG Indoor Tankless Water Heater, 2.9 GPM, Natural Gas ThermoMateNatural gas | 75k BTU | 2.7 | 2.9 | -- | ThermoMate (official store) | $260 | $95 | today | View deal |
| ThermoMate CZ422LP Indoor Tankless Water Heater, 4.4 GPM, Propane ThermoMatePropane | 113k BTU | 4.1 | 4.4 | -- | ThermoMate (official store) | $400 | $97 | today | View deal |
| ThermoMate CZ422NG Indoor Tankless Water Heater, 4.4 GPM, Natural Gas ThermoMateNatural gas | 113k BTU | 4.1 | 4.4 | -- | ThermoMate (official store) | $400 | $97 | today | View deal |
| ThermoMate CZ360LP Indoor Tankless Water Heater, 4.05 GPM, Propane ThermoMatePropane | 98.5k BTU | 3.6 | 4.05 | -- | ThermoMate (official store) | $360 | $100 | today | View deal |
| ThermoMate CZ360NG Indoor Tankless Water Heater, 4.05 GPM, Natural Gas ThermoMateNatural gas | 98.5k BTU | 3.6 | 4.05 | -- | ThermoMate (official store) | $370 | $103 | today | View deal |
| ThermoMate CZ750NG Indoor Tankless Water Heater, 8 GPM, Natural Gas ThermoMateNatural gas | 199k BTU | 7.2 | 8 @33° | 0.81 | ThermoMate (official store) | $740 | $103 | today | View deal |
| ThermoMate CZ264LP Indoor Tankless Water Heater, 2.9 GPM, Propane ThermoMatePropane | 75k BTU | 2.7 | 2.9 | -- | ThermoMate (official store) | $300 | $110 | today | View deal |
| ThermoMate CZ480LP Indoor Tankless Water Heater, 5.28 GPM, Propane ThermoMatePropaneCondensing | 114k BTU | 4.6 | 5.28 | 0.91 | ThermoMate (official store) | $560 | $121 | today | View deal |
| ThermoMate CZ480NG Indoor Tankless Water Heater, 5.28 GPM, Natural Gas ThermoMateNatural gasCondensing | 114k BTU | 4.4 | 5.28 | 0.86 | ThermoMate (official store) | $560 | $129 | today | View deal |
$/GPM is the price divided by the hot water flow the heater delivers at a 45 °F temperature rise, worked out from its gas input and UEF. "Box GPM" is the maker's own maximum, often quoted at a much smaller rise, so it is shown but not ranked on. Your rise depends on your incoming water: the sizing calculator works it out from your ZIP.
Electric Tankless Water Heaters
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All brands
| Water heater | Store | Checked | Buy | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| ThermoMate ET270 Electric Tankless Water Heater, 27 kW 240 V ThermoMate | 27 kW | 114 A | 4.1 | 5.27 @35° | -- | ThermoMate (official store) | $430 | $106 | today | View deal |
| ThermoMate ET360 Electric Tankless Water Heater, 36 kW 240 V ThermoMate | 36 kW | 150 A | 5.4 | 7.03 @35° | -- | ThermoMate (official store) | $600 | $111 | today | View deal |
| ThermoMate ET180 Electric Tankless Water Heater, 18 kW 240 V ThermoMate | 18 kW | 76 A | 2.7 | 4.58 | -- | ThermoMate (official store) | $330 | $122 | today | View deal |
| ThermoMate ET110 Electric Tankless Water Heater, 11 kW 240 V ThermoMate | 11 kW | 46 A | 1.7 | 2.68 | -- | ThermoMate (official store) | $230 | $139 | today | View deal |
| ThermoMate ET045 Electric Tankless Water Heater, 4.5 kW 120 V ThermoMatePoint of use | 4.5 kW | 38 A | 0.7 | 1 | -- | ThermoMate (official store) | $140 | $207 | today | View deal |
| ThermoMate ET035 Electric Tankless Water Heater, 3.5 kW 120 V ThermoMatePoint of use | 3.5 kW | 29 A | 0.5 | -- | -- | ThermoMate (official store) | $130 | $247 | today | View deal |
$/GPM is the price divided by the hot water flow the heater delivers at a 45 °F temperature rise, worked out from its kW rating. "Box GPM" is the maker's own maximum, often quoted at a much smaller rise, so it is shown but not ranked on. Your rise depends on your incoming water: the sizing calculator works it out from your ZIP.