While generously sizing the return plenum air opening can be an effective ... Stangeland's extensive experience encompasses commercial projects, branch banks, churches, auditoriums, medical office ...

Return plenums greatly reduce ceiling coordination among trades by eliminating the large return air ducts and the need to cross over supply and return mains to serve zones. Using building cavities as ...

With energy prices continuing to rise, the costs of heating and cooling commercial buildings are straining the operating ... duct gains and losses, and return air plenums. After sizing the equipment ...

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 ...