How To Install A Cold Air Return Floor Grill

In an air conditioning climate the return duct goes near the ceiling to draw off the hot air and cool it down.

How to install a cold air return floor grill.

If you had no return air in your room you would create a positive pressure. Nail a piece of sheet metal onto the back of a stud cavity. That would then reduce the flow of conditioned air to that space. 9 75 x 15 75 4 1 out of 5 stars 731.

1 16 of 541 results for floor return air grille 8 x 14 floor grille fixed blades air grill brown outer dimensions. Pham from hamilton asked why he sees air returns on the ceiling sometimes and on the floor in other houses and what effect this placement has on air quality in the house if you are in the far north or in the southern us the answer is simple. Unlike supply vents return vents do not need to be cased in metal. 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.

Warm air rises and the return will direct that air to the cooler. 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. The vent cover or grille usually contains a removable filter and is sized to fit between ceiling joists spaced a standard 24. Running a metal cold air return duct between studs requires knowledge of both hvac systems and the components involved in framing.

For the system to work you have to re circulate the air back to the furnace.