How many amps does a 50 gallon water heater draw?

Home Alliance Tech Expert

Most 50-gallon electric water heaters use 4500 watts. With a 240-volt electric circuit, this is equal to 18.75 amps. In other words, a 50-gallon water heater won't flip a 20 amp circuit breaker, but it will make the breaker work at nearly full capacity (95%) -something most breakers aren't designed to handle well.

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