Jun 3, 2025 · A plenum is an air distribution box designed for forced-air systems on residential homes and commercial businesses. It is part of the ductwork, but far different than an air duct …

The meaning of PLENUM is a space or all space every part of which is full of matter.

What is an HVAC plenum? A plenum is a box made of sheet metal. It connects your HVAC system’s air handler to your ductwork. Your HVAC system creates cool or warm air depending …

Plenum: a compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system.

Aug 20, 2025 · A central HVAC box, the plenum balances and distributes air throughout your home’s duct system. The supply plenum distributes conditioned air evenly into your home’s …

PLENUM definition: the state or a space in which a gas, usually air, is contained at a pressure greater than atmospheric pressure. See examples of plenum used in a sentence.

A typical plenum consists of a large metal or fiberglass box that connects the air handler to ductwork. It is often equipped with vents, filters, and sometimes dampers.