I've got a dedicated 20amp circuit to mine, with a 15 min. spring-wound timer for the heater. If a guy has 2 circuits to the unit, then there shouldn't be a problem with 2 cables, should there? BTW, Nobody makes 12-5 MC cable that I know of. AFC makes "home run cable" that comes in 6 and 8 conductor configurations, but generally MC is available in 2, 3, or 4 conductor.
