A typical home hot water heater uses 4800 watts. The circuitry connecting to the tanks is a 20 amp breaker with #12 wire for the connection. The tank draws 20 amps. W = A x V = 20 x 240 = 4800 watts....
Do you mean how many watts are used to make hot water?
It varies, but a typical home electric hot water heater consumes about 4,500 watts.
Industrial hot water heaters might use 20,000 watts or...
About 60 gallons , if it is new. This amount will diminish over time because of sediment build up and corrosion. And while using hot water continuously the temperature of the water will decrease as...