ThermoMate ET180 Electric Tankless Water Heater, 18 kW 240 V
ThermoMate · 18 kW
Where to buy
| Water heater | Store | Checked | Buy | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
$/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.
Is it big enough for my house?
At full fire this heater puts about 60.8k BTU/h into the water. Enter your household and ZIP code in the sizing calculator: it works out how cold your water arrives in winter, the peak flow your showers and taps need, and whether this heater keeps up. Open the sizing calculator.
Install: needs 2 × 40 A double-pole.