Learn all about your furnace pilot light — where it is, what it does, and how to troubleshoot the most common issue.

Why Are There So Many Types of Furnaces? Most American homes rely on a furnace to provide warmth in cold weather. And because ...

One significant area of research has been the injection of natural gas (NG ... due to its quenching effects on flame temperatures, which can destabilize the furnace operation at high injection ...