To fully understand how to install a high-velocity HVAC system, one must know what it is and what it does. Basically, it is a small duct, high-velocity airflow, heating and cooling system designed to ...

As many contractors attest, a supply air plenum is a sheet metal box attached to a furnace or air handler’s outlet and is used as a central manifold connector for other ductwork. As the air blows from ...

There is a common misconception that it’s impossible to have a furnace — a major component to an HVAC system — installed in the attic due to tight space and minimal access. This is not the case. As ...