How To Install A Cold Air Return Floor Grille

Size the hole appropriately to the grille size.

How to install a cold air return floor grille.

First building codes in many areas require that the cold air return line gets external insulation and therefore you will need to leave a gap for the insulation around the duct return line. Thankfully our climate is pretty temperate here. Running a metal cold air return duct between studs requires knowledge of both hvac systems and the components involved in framing. Warm air rises and the return will direct that air to the cooler.

Through the hole cut through the floor. The vent cover or grille usually contains a removable filter and is sized to fit between ceiling joists spaced a standard 24. With the right tools you can install a return air duct successfully. That said i am looking at installing central air before summer hits.

Homes will either have multiple small grilles throughout or a single large grille installed in either ceilings or walls. There are zero return registers upstairs 3 bedrooms and 1 bath. This should give you a hole into the basement. The main floor has 3 supply and 3 return registers all on the floor but the supply is interior and returns are under windows along the exterior.

Grilles the function of a grille is to pull air from a room to return it to the heating or cooling system.