A. You can close some vents in unused areas of the home but be aware that your insulation is the exterior walls, if you let the room get too warm or cool you will still need to overcome that in the adjoining rooms. Closing off too many vents may also cause issues with the furnace or air conditioner.

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.