Homemade Sheet Metal Plenum Box

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. The trim to fit plenum fully assembled measures 20 in. Place this cylinder on top of the metal sandwich and place the entire assembly under the press.

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Then take 2 6 and cut two pieces to 26 in length.

Homemade sheet metal plenum box.

Simply measure and cut to size using tin snips to match the supply opening of the air handler furnace or evaporator coil. After bending a box or pan form is then completed by screw solder weld rivet or other metal fixing process. Take 2 4 and cut two pieces to 65 in length and one piece to 19. Slit the foil vapor barrier extending beyond the edges of the duct board with a duct board knife.

Tape the flaps down with foil tape to complete the duct board. Colorado box company 1 empire metal products 1 first co 1 friedrich air conditioning 1 green metals 1. Furnace stands are a return plenum box. Find a long metal cylinder that will fit between the two stainless steel rods.

It s like a little metal sandwich. Secure the end caps to the plenum. 24 36 or 48 long metal plenum with 1 end cap. Staple the foil to the duct board.

Place the sheet metal in the correct position on the positive die and slide the negative on top. M2430v1 vertical plenum heating air handler module 1 m3642v1 vertical plenum heating air handler module 1. 2 end caps if product name specifies flat. Push the cut pieces in each open end of the plenum.

Drill pocket holes using kreg jig as shown in the picture. 26 ga duct plenum. In a box and pan brake the clamping bar includes several removable blocks which may be removed and rearranged to permit bending of restricted areas of a piece of sheet metal or of already partially formed pieces. Start with making the long side of the planter box.

Sheet metal products 8 x 20 x 20 in. Fold the ends of the foil onto the outside of the duct board. They are designed to be used with multiple different brands and can be customized for your ductwork needs.