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How many amperes use an electric heater?
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).
How many amps will a 10 kw electric heater operating at 480 volts?
Volts times amps equals watts, so the question is - what times 480 makes 10,000, and the answer is 10,000 divided by 480. That is 10,000 divided by 500 and then increased by 4% which is 20.8 amps.
what is better 120 volt or 240 volt water heater?
Both work just as well. The only difference is what the supply voltage is at hand. Heaters are rated in watts. Your electric bill is rated in watts consumed per hour. Watts = Amps x Volts. An example, 500 watt heater at 120 volts will equal 4.16 amps. The same heater at 240 volts will equal 2.08 amps. As you can see if the voltage goes up the current goes down but the wattage total is always the same. That is the reason that you are billed on wattage, and not on what the service voltage or the current draw of the service is.
Why do you only have 110 power to your electric water heater?
There are small water heaters that run on 110 volts. However if yours is a large 240 volt heater and you only have 110 volts going to it, then it is fused and one on the fuses has blown in the service panel.
Why does my gas water heater need to be hooked up to a 30 amp breaker with 220 volts?
A gas water heater doesn't use electricity to heat water like an electric water heater does. The electrical connection is typically for powering the ignition system or other electronic components on the gas water heater. The 30 amp breaker with 220 volts is required to safely supply power to these components.
