Which ever one you purchased. They are all rated different, if your talking 50gal
well most are around 4500watts. But somewhere on the tank or the paper work that you got with the heater,tells you what wattage of the elements is.
If you can't find it, you should be able to see who the MFG of the heater is and model#,
you can go online to the mfg website and find info on the heater.
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The wattage of a water heater can vary depending on its size and type. On average, residential water heaters range from 4500 watts to 9000 watts. It's important to check the specifications of your specific water heater model to determine its wattage.
To calculate the amperage, use the formula: Amps = Watts / Volts. In this case, it would be 2400 watts / 240 volts = 10 amps. Therefore, the water heater would draw 10 amps of current.
An immersion heater typically uses around 1500-2000 watts of power when heating water. The exact wattage can vary depending on the size and type of the immersion heater.
The GE water heater SE50M12AA01 is a 5500 watts or 5.5 Kilowatts water tank. The amperage on such a tank is I = W/E. Amps = Watts/Volts. Since most hot water tanks in North America use a voltage of 240, the amps will be 22.9 amps. It must be fed with a #10 conductor from a 30 amp breaker.
To calculate the current for a single-phase water heater, you can use the formula: Current (A) = Power (W) / Voltage (V). Determine the power rating of the water heater in watts and the voltage it operates at (usually 120V or 240V in residential settings), then divide the power by the voltage to find the current in amperes (A).
The average size water tank is 4500 watts. The generator's supply will be large enough to operate the water tank. Larger tanks over 5000 watts will not heat correctly.