Guest Blog: “Heat Pump Defrost Problems Not Only Hurt Your Wallet, They Mess With Your Home Comfort,” By Keith Graff at Gra-Tac Heating and Cooling.

By Keith Graff, Gra-Tac Heating & Cooling Thursday, February 21st, 2013 11:00 AM CST When a heat pump looks like this, the heat transfer goes away and it definitely needs to defrost or it will cost you on your electric bill and your comfort level.  The f...