low(er) wattage hot water heating elements?
The standard hot water heating element seems to be 1500W for small tanks. Does anyone know of lower wattage ones being available? Our trailer only has a 30 amp connection and I find in the hot summer ...
Forum Discussion
Chris Bryant wrote:
A 240 volt element will draw 1/4 of its rated wattage at 120 volts, so a 240 volt 2000 watt element would draw 500 watts, and a 240 volt 1500 watt element would draw under 400.
The math there has me stumped.
Wouldn't a 240V element run exactly half the wattage at half (120V) the voltage?
Or are they non-linear because of the resistance change do to heating of the element or something?
