Wiktionary
alt. An apparatus, usually fuel burning, electric or solar powered, in which water is heated to be used directly as domestic hot water or process hot water (but not for supplying space heating, calorifiers etc, for which a boiler or furnace is used). n. An apparatus, usually fuel burning, electric or solar powered, in which water is heated to be used directly as domestic hot water or process hot water (but not for supplying space heating, calorifiers etc, for which a boiler or furnace is used).
Usage examples of "hot water heater".
The hot water heater came on behind me, the familiar sound somehow reassuring.
Sent me a goddamned note saying the fire was their fault, some kind of bullshit about trying to fix the hot water heater.
The methoxide and oil mixture is stirred for an hour while being kept at a moderate temperature of 130 degrees Fahrenheit, which is the temperature of hot water straight out of your average hot water heater.