A. If you use a 5 degree setback you can save between 5-10% on your annual cost to run the furnace.  The cost to install a programmable varies greatly depending on what you purchase. It may take between 5-10 years or more to get a full payback. 

A. The Heat Pump takes the heat from the home and releases it outside in the summer to cool the home. In the winter it removes the heat in the outdoor air and releases it inside to warm the home. A furnace only produces heat by burning a fuel or using electric and also moves the air inside.