Day: April 3, 2026

If you’ve ever heard your HVAC technician mention a plenum HVAC component during a service call, you might have wondered what exactly they were talking about. The plenum is actually one of the most important parts of your heating and cooling system. Yet most homeowners have never heard of it. We’ve been servicing HVAC systems in Mt. Holly for decades, and we often find that understanding your system’s key components