a device that transfers heat from a colder area to a hotter area by using mechanical energy, as in a refrigerator. WHAT DOES THIS MEAN FOR ME? Heat pumps can supply heat, cooling, and hot water. Your climate and site will determine the type of heat pump most appropriate for your home.
It's an air conditioner that also runs in reverse and has a defroster to prevent the ice buildup that happens when it's doing that
