What is a plenum? HVAC terms explained
On the supply side of the air handler, the plenum takes the newly warmed or cooled air and leads it into your ductwork. This is how the air from your HVAC system is distributed throughout your home.
Supply Plenum vs Return Plenum: What’s the Difference and Why ...
Jul 31, 2025 · The supply plenum is essentially the main air distribution box connected to the output side of your HVAC blower or furnace. When conditioned air is heated or cooled, it travels from the …
What is Plenum in HVAC and Why It is so Important
Jun 3, 2025 · Supply Plenums – This metal box is placed at the beginning of the ductwork where it’s attached to the supply outlet of HVAC equipment like central heating and air units and furnaces. The …
4 Types of HVAC Plenums (Basics & Applications) - aircondlounge
Mar 26, 2024 · A plenum box slows down the supply airflow and enables the control of the airflow direction. Furthermore, slowing down the supply airflow also makes the linear diffuser quieter.
What is a supply plenum? - Texas Air Authorities
Aug 28, 2024 · Supply plenums are widely used in both commercial and industrial buildings, as well as residential settings. Constructed from durable materials like sheet metal, they are designed to endure …
What is a Plenum in HVAC & Why Is It Important | Anderson Air
Just as its name goes, the supply plenum is a box in your HVAC used to distribute fresh air into a building or exhaust the unclean air. It allows for the exchange of fresh air and exhaust air in an …
Plenums - Duct Outlet
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