• 01276 855 847 Nationwide (UK)
  • info@bmscontrols.co.uk Email Us
  • Unit C1D, Fairoaks Airport Surrey, GU24 8HX

BMS Controls FAQ

What Is Hvac Plenum?

What Is Hvac Plenum?

Are you curious about HVAC plenum and what it exactly does? Understanding the function of a plenum in your heating, ventilation, and air conditioning (HVAC) system is crucial to keeping your indoor environment comfortable and healthy. If you want to know more about this important component of your HVAC system, read on as we explore what an HVAC plenum is all about.

What is a HVAC plenum?

A plenum is a large, open area in a building where air is circulated. Air enters the plenum through an opening at the top and flows downward, picking up heat as it goes. The cold air exits the plenum through a hole at the bottom, sending the warm air back up to the upper levels of the building.

What are the benefits of a HVAC plenum?

A plenum is a section of an HVAC system that circulates air. This allows for more efficient use of the system and improved airflow throughout the building. Additionally, a plenum can help to reduce humidity levels in a space.

How to create a HVAC plenum?

A plenum is a specialized air distribution system used in high-rise buildings and other large industrial or commercial spaces. It is designed to improve the airflow and efficiency of heating, ventilation, and air conditioning (HVAC). The plenum is also commonly used in automobiles as part of the intake system for the engine.

The key components of a typical HVAC plenum are an air distribution frame, grilles, louvers, diffusers, ducts, and fans. The air distribution frame typically consists of a metal frame covered with plastic mesh or fabric. It is located near the ceiling or roof of the building and functions as a channel for distributing air from the upper floors down to the lower floors. Grilles are used to control airflow into and out of the plenum. Louvers are openings that allow light into the plenum but restrict airflow. Diffusers are devices that spread wind or other gases over a wide area so that they can be heated effectively by the fans. Ducts pass air from one section of the plenum to another. Fans circulate air within and around the plenum to distribute heat evenly.


In this article, we will discuss what a hvac plenum is and why it is important for your system. We will also provide some tips on how to inspect and maintain your plenum. By the end of this article, you should have a better understanding of what a hvac plenum is and why it matters in your system.