Derived from the Latin word fornax, meaning oven, a furnace is a large heating appliance designed to evenly distribute heat throughout a building. Furnaces accomplish this by burning fuel internally ...

A draft hood used to effectively ventilate the area around older “gravity vent” furnaces. Because current furnaces lack this feature, the condition described below results in some unburned gas ...

A time may come when the majority of U.S. homeowners use heat pumps to heat and cool their homes, but we’re not there yet. According to Elements, in 2020 more than half of U.S. homes had forced-air ...