How To Install A Cold Air Return Floor Grill
In a heating climate the return duct.
How to install a cold air return floor grill. 9 75 x 15 75 4 1 out of 5 stars 731. If you had no return air in your room you would create a positive pressure. Warm air rises and the return will direct that air to the cooler. The vent cover or grille usually contains a removable filter and is sized to fit between ceiling joists spaced a standard 24.
That is why you need a cold air return image 1. 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. They can be placed into staircase cavities stacked closets that run one on top of the other or in stud cavities in the wall.
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. That would then reduce the flow of conditioned air to that space. 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.
In an air conditioning climate the return duct goes near the ceiling to draw off the hot air and cool it down.