cingles
Apr 21, 2008, 09:52 AM
What is the difference between a heat pump and a furnace air conditioning unit?
hvac1000
Apr 21, 2008, 11:03 AM
A air conditioner only cools the air but a heat pump not only cools the air in the summer but provides heat in the winter. This changeover is accomplished by a valve that changes the direction of the refrigerant flow in the outside unit.