I don't heat or insulate here in Southern tier NY. I do use a heater fount for the waterer though. I think even a insulated coup with no heat would freeze water in this climate. The chickens fluff their feathers to trap warm air inside,you can feel heat a few inches away from them in the winter. As far as putting out enough to keep the water from freezing,I don't think that will work. JMHO Will