A. A lot of people are in the same boat as you because natural gas prices, especially in the Midwest, have soared in the last few years. One way we've helped customers cope is with Trane's Hybrid Heat system. It's a high-efficiency natural gas furnace combined with a high-efficiency electric heat pump. It's often referred to as a "dual fuel" system.

A. In mild weather the HP can provide all the necessary heat down to about 30-35 degrees, below that it would need some kind of backup heat source to provide the additional heat necessary to meet the load of the home down to 0 degrees.