ravenswing
May 7, 2009, 05:21 PM
I am installing a new 240v single phase water heater with a two wire connection(red and black). I have a 30amp two-pole breaker, and I need to know if 12-2 Romex is sufficient or do I need to up the size to 10-2 ?
View Full Version : Wiring new water heater to breaker box