This thread has me thinking about what supply we actually have. Residential power but unknown supply wattage. I can run two 1pk ACs, electric instant water heater, well pump, washing machine and electric oven all at the same time without tripping the breaker. Add a commercial sewing machine and then the breaker will trip. Since I can run all of these appliances at the same time, I never though much about it. Now I am curious.