A furnace heat exchanger keeps dangerous gases out of the air circulating in the building. It's a must-have on any furnace that burns gas or oil.

Boilers and furnaces use fuel or electricity to heat a building, but they work differently. Here's what you need to know about them.

What are the benefits of a furnace tune-up? Your furnace is a complex piece of machinery, and to keep it functioning properly through the coldest winter months when you depend on it most, it needs ...

Keeping your furnace clean is important in order to have it run properly in winter (or year-round if you have whole-house air conditioning). A clean furnace will burn less fuel -- thus saving you ...

We are retired and our interest income from bank CDs is not what it used to be. I thought about replacing our gas furnace to lower our utility bills. What is the most efficient design available? Many, ...

Juan has been a home inspector for 10 years and runs a successful home inspection company in Richmond, VA. He loves inspecting homes, but his real passion is educating home owners and newer inspectors ...