Don't know about the breaker we are looking into buying this house. Central Air Yes. Range would be gas as well as water heater and furnance. Square footage is under a 1000 but a large garage is attached and future plans are to put a small utility room off in the one corner of the garage. Would a load study be done in a normal appriasal? Would I need to contact an electrician, or would we be able to do this ourselves?