Can you use drywall as ductwork?

So that’s it! Drywalls cannot touch ductwork. But, you can install drywall directly against the ductwork with a 6-inch gap. Installing dry walls the right way is essential for the safety of ductwork.

Can you use a wall cavity for a cold air return?

Wall cavities and joist spaces can be used for return air supply air needs to be in a duct or pipe. There’s nothing wrong with a wall cavity return. It’s much easier to burn your money if you have too much.

Can you screw into duct work?

Insert 1/2-inch self-tapping sheet metal screws through metal ducts where the ends come together. Turn the screw at high speed on the end of a drill and bit while pushing it firmly against the sheet metal. The screw will make its own hole and self-thread into the metal duct.

Can HVAC duct touch wood?

Registered. Ductwork under normal conditions will not ignite or even char wood. There is no need to insulate the wood from the heat that may be generated.

What happens if there is not enough return air?

If there is not enough return air available, your HVAC system will not heat or cool properly. If not enough air is brought back, your HVAC system will not be able to keep up with temperature demands. In some cases, two returns may be necessary to provide enough return air.

Where should I put my return and supply ducts?

“An HVAC return air duct should be in every room except a bathroom and kitchen. They should be on interior walls across the room from the supply ducts that should be washing exterior walls with conditioned air.”

What screws to use on ductwork?

What kind of air return do I need for drywall?

Designed specifically for wall and ceiling air returns on drywall surfaces. Complete with a drywall bead rim that contours the vent flush into the surface. Install is best done by a Pro.

Where do you put HVAC return ducts in Your House?

HVAC Return Air Ducting – You Better Have One in Many Rooms “An HVAC return air duct should be in every room except a bathroom and kitchen. They should be on interior walls across the room from the supply ducts that should be washing exterior walls with conditioned air.”

Can a sheet metal duct be used for return air?

Once you have created the opening, sheet metal will allow you to connect this to your existing return air system. Two-story houses can be more of a challenge. You have to figure out a way to get return air from the ceilings of the second floor to the basement or furnace room.

How big is a return air vent box?

The Duct-board Return Air Box is an R6 insulated box that installs traditionally in a ceiling. Can accept any size collar up to 18 in. Diameter (not included). Used as a central return vent box (Filter Grill Not included).