If the air duct isn t long enough it is possible to add extra length.
Cold air return duct installation.
A fan draws air from the house into the system through return.
If the supply ducts are in the floor then the return air should be located up high.
To explain the components of a forced air system.
The return air vent openings need to be on the opposite side of the room so the conditioned air is pulled across the room.
And this is just one of the reasons that the return ducts need to be installed directly across from the supply vents.
Work from the farthest hole back and install return air panning back.
Go into the basement and locate the holes.
Remove existing ductwork where needed.
Install an air supply line and a cold air return step 1.
The best use of the perfect balance is in existing homes where you don t have returns in the bedrooms and can t or don t want to install jumper ducts or transfer grilles.
If the pressure in the bedroom with the door closed and the air handler running is higher than 3 pa this is a great way to retrofit a return air pathway.
A cold duct can be put between the studs in your wall.
How to install a cold air return duct between studs.
How to install a return air duct step 1.
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 a corner of a room.
Check building codes to see if external insulation is required.
Place a mark on the floor in front of the wall that you need to run the ductwork through measuring from the same wall that you used for.
Mark the center point for the takeoff and drill a pilot hole using the cutting bit in the hole cutter.
This pulls the air across your body.
The ducts are installed strategically in these locations to help battle this heat loss or heat gain.
Measure the centerline of the ductwork from the nearest parallel wall with a tape measure.
Locate where you want your return air ducts.
Cut a hole low in the drywall where you want to put your return air.