Insulated Sheet Metal Plenum

And is designed for use with all heating and cooling applications.

Insulated sheet metal plenum.

Item 523685 model rab21rab21. Since opening in 1987 sheet metal werks has grown on pace with increasing customer demand. Currently housed in an 80 000 square foot facility we have the capacity for your largest custom jobs whether you are installing hvac ductwork at a hospital a high rise a mall or an office building. I noted this furnace has ductboard plenums note the plural.

Constructed of 26 gauge sheet metal the knock down design of the plenum takes up very little space and simplifies transporting to the job site. Lined metal or board return ductwork upstream from an effective filter is not usually a problem. Winchester 20 5 in x 21 in x 28 in return air box assembly duct plenum. Codewise supply plenums on furnaces must be constructed only of sheet metal nfpa 90b.

The trim to fit plenum fully assembled measures 20 in. Fibrous glass duct wrap insulation is designed for application to the exteriors of commercial and residential sheet metal heating ventilating and air conditioning ducts and plenums operating at temperatures between 40 f 4 c and 250 f 121 c. Note that includes supply ducts within 36 of the supply plenum too. W x 20 in.

Plenum boxes insulated with duct liner for residential a plenum box fits over the inside unit and is the first stage of the air supply.