I have over 17 years in residential and have seen this a time or two mainly in older kit circuits but as a young apprentice was exlained that it wasn't kosher.So as I was trained I moved on to doing things the way I was taught.I'm starting a 3700 Sq ft house and I'm going to have 4 circuits on the far side of the house,so would I just run 2 12-3 runs from the panel to the far side of the house. I know not to put the same wires on the same phase and to put on a 2 pole breaker.What my concerns are what kind of problems might I encounter by doing this as long as I don't overload the circuit.
