Amps * Volts = Watts
So,
Watts / Volts = Amps
2000 / 240 = 8.333 Amps
You should run the circuit on a two pole 15 Amp breaker, using 14 AWG, 2 conductor (plus ground) wire, just so you have a little safety factor in the circuit size.
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A 2000 watt heater operating at 240 volts will draw approximately 8.3 amps of current. This can be calculated using the formula: Amps = Watts/Volts.
Assuming just a resistive load and no blower motor the Power Factor will be one. Therefore, watts = volts x amps. 4500 = 240 x amps. Rearranging we have amps = 4500 / 240 = 18.7
To calculate the amperage, you can use the formula: Amps = Watts / Volts. In this case, a 400-watt heater cartridge at 240 volts would draw 1.67 amps.
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.
9000 BTU/hour is equivalent to 2300 watts so the heater will draw 10 amps on 230 volts.
To calculate the amperage draw, you can use the formula P = V x I, where P is the power in watts, V is the voltage in volts, and I is the current in amps. Given that the power is 1200 watts and voltage is 120 volts, you can rearrange the formula to solve for current. Therefore, I = P / V, so the amperage draw of the heater would be 10 amps.
The amperage of an electric heater depends on its power rating in watts and the voltage it operates on. To determine the amperage, divide the wattage by the voltage (Amperes = Watts / Volts). For example, a 1500 watt electric heater running on 120 volts would use 12.5 amperes (1500 watts / 120 volts = 12.5 A).