I am installing an outdoor heater that is 3000 watt, 12.5 amp, 240 v. What size breaker and wire should be used?
1 Answer
To just answer your question, You will need #12 AWG wire which is good for 20 Amps and a 20 Amp breaker. If you add more information about the location and the heater, we might be able to help out with the installation.