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View Full Version : How many amps for a hot waterheater

travis29
Jan 1, 2010, 07:30 PM
I am changing my natural gas hot water heater to electric I need to know how many amp c/b I need and size wire.
stanfortyman
Jan 1, 2010, 07:45 PM
Typically #10CU and a 2-pole 30A breaker. This will cover 99% of the full sized residential hot water heaters out there.