One common setup is to have a heat pump. Depending upon the region and climate, a home may have a separate furnace and air conditioner heat pump instead. Having separate dedicated heating and cooling units are common in harsher colder climates such as Minnesota. Having just a traditional heat pump system would likely allow you to freeze while the heat pump continues to waste electricity trying achieve a warmer interior temperature. Heat pumps are simply an exchanger or transferer of warm air.  In summer time, the refrigerant in the interior coils absorb warm air from inside the home and transfers it to the coils in the outside condenser unit.

Make-up Air - Contractor for air conditioning, heating and ventilation work for the residential, commercial and industrial sectors