What is a plenum? HVAC terms explained
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 …
What is Plenum in HVAC and Why It is so Important
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 …
What is a Plenum in HVAC & Why Is It Important | Anderson Air
A plenum is an air-distribution chamber in an HVAC system — either supply or return — that helps move and balance airflow through the ductwork. Proper installation and maintenance of …
What Is a Plenum in HVAC? | Angi
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 …
What Is a Plenum in HVAC? | Key Functions & Benefits - RHCC
Plenums come in two main types: supply and return. The supply plenum distributes heated or cooled air to the ducts, while the return plenum collects air from the rooms and channels it …
What Does a Plenum Do? Key Functions and Importance in HVAC ...
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 …
What Is a Plenum Chamber and How Does It Work?
Nov 4, 2025 · It acts as a pressurized or vacuum-filled reservoir used to regulate the fluid’s movement and distribution. The plenum bridges a high-velocity source with multiple, often …