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 …

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 …

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 …

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

Sep 17, 2025 · Definition in simple terms: A plenum in HVAC (or HVAC plenum) is a chamber or box which connects to the air handler of an HVAC system and helps distribute or collect air …

Jul 13, 2025 · A plenum is a big part of an HVAC system, but what is the purpose of a plenum? Simply put, it distributes and collects air. It’s the central hub of air flow in a building. This article …