Cold Air Return Duct Board

The duct layout should be considered in the initial framing design stage.

Cold air return duct board.

Used as a central return vent box filter grill not included. Can be easily cut to size. Metal and flexible ductwork need to be sealed to guarantee that it is reasonably air tight for maximum efficiency use an approved foil tape or duct sealant. The return air vent openings need to be on the opposite side of the room so the conditioned air is pulled across the room.

Acceptable duct materials include galvanized steel aluminum fiberglass duct board and flexible duct. Item 1790033 model 1790033. This pulls the air across your body. Attach a second air duct to the first by peeling back the insulation.

Run the new flexible air duct under the house from the floor return to the underside of the air handler and attach to the metal vent box or plenum image 1. In addition its flexibility allows for easier installation in hard to reach areas. Building cavity space alone should not be used as a supply or return air pathway. The duct board return air box is an r6 the duct board return air box is an r6 insulated box that installs traditionally in a ceiling.

Recognized and acceptable duct materials should be used for all hvac airways. Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes. The return vent pulls cold air from the bottom of the room and returns it to the furnace to be reheated and returned as warm air. A cold air return duct connects to a floor or wall return register and circulates air from each room back to a furnace for reheating.

Remove existing ductwork where needed. They can be placed into staircase cavities stacked closets that run one on top of the other or in stud cavities in the wall. If the supply ducts are high or in the ceiling then the return air ducts or grills should be low on. You can build ducts from rigid foam board to serve as the distribution system to circulate heated or cooled air in your house.

Can accept any size collar up to 18 in. Cold air returns are sized 1 5 times above the supply capacity to prevent negative pressure in the system. Menards offers a wide range of ductwork pipe and fittings to help your ductwork systems run efficiently these products are used for warm air return supply and exhaust systems. Product is knocked down for shipping and must be.

As with all duct systems it is essential that one built from rigid foam board is correctly designed so that the temperature is comfortable and consistent throughout the residence. If the air duct isn t long enough it is possible to add extra length. Do not return air from bathrooms and kitchens. If the supply ducts are in the floor then the return air should be located up high.