Fortunately for us my brother can do anything electrical and he installed us 3 dedicated circuits to the breaker box. One for each of the 1500watt power supplies. You can imagine our electricity bill though. :( In the winter, we don't vent the heat outside, we run it through the house so at least the heating bill is the minimum charge and we get a little bit of a trade off. Biggggggg difference though in them making $100 last December and about $7 a day this December. Please come back Mr. Bull!