As many contractors attest, a supply air plenum is a sheet metal box attached to a furnace or air handler’s outlet and is used as a central manifold connector for other ductwork. As the air blows from ...

Choosing the right size furnace is an important part of owning a home. Not only will a suitably sized furnace efficiently heat your house, it will also keep your family comfortable and help regulate ...

When the combustion air duct is connected directly to the return plenum for a furnace, the blower fan on the furnace pulls outdoor air in to the return plenum. To supply this air to the furnace room, ...

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 ...

The National Air Duct Cleaners Association (NADCA); also known as the HVAC Inspection, Cleaning, and Restoration Association; today announces the publication of a white paper on methods of inspecting ...