Your furnace's job is keeping you warm. Get to know the parts of a furnace so it will do that job better and last a lot ...

We still design homes for heating in a cold ... adapt blower motors to those furnaces and force the air through ductwork to various areas of the building. These forced-air systems have evolved ...

Don't panic! Learn what might be causing this troubling issue, what you can do about it and when to call in a pro.