A furnace plenum is a chamber that’s used to distribute heated air from a furnace to the ductwork of a heating system. It’s usually manufactured from sheet steel and is positioned on the highest or aspect of the furnace. The plenum has a collection of openings that enable the heated air to enter the ductwork. The dimensions of the plenum and the variety of openings will differ relying on the dimensions of the furnace and the heating system.
The furnace plenum is a crucial a part of the heating system because it ensures that the heated air is evenly distributed all through the house. With no plenum, the heated air wouldn’t have the ability to attain the entire rooms within the residence, and a few rooms can be colder than others.