Incorporating a plenum can have its design advantages, but corridors serving adjoining areas of health care occupancies are prohibited from being used for a portion of an air supply, air return, or ...

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 ...

With Cat. 5e or Cat. 6 cabling now being installed in most new construction projects, some changes in installation methods are in order for slab-on-grade floor boxes with communication outlets.