The first modern oil furnace with a high-voltage system for self lighting was unveiled in 1918. By the mid-1920s, demand for ...

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

Gas furnaces are better in cold climates because they can heat your space quicker than electric furnaces. Gas furnaces usually have the edge when it comes to fuel cost, but electric furnaces are ...