I put two heat pumps in this house so I have distinct zones and don't have to heat or cool the entire house. And for winter there is an auxiliary heater to add to what the pump itself generates. It works fine, it's the price of power that kills us here. I resolved last year to examine the rates every 12 months and move companies if I can find a better rate. My bills dropped considerably when I left that company that I'd been using since I moved into this house. Should have made the change a long time ago.