Furnace Air Return Grill

Homes will either have multiple small grilles throughout or a single large grille installed in either ceilings or walls.

Furnace air return grill.

It s much better to put a return air duct in each room. Industries 270 series 18 x 18 in. Free shipping on orders over 99. Find grilles at lowe s today.

Should the system have an outside air intake you must reduce the amount of required return air into each return grille and duct to provide for the outside air entering the return side of the fan. It differs from a register because it does not have a damper to control airflow. In most homes the filter is placed directly by the furnace but some homes are not equipped for that kind of setup and you may need a return air filter grille. 22 5 x 21 75 4 7 out of 5 stars 238.

First calculate the percent of outside air compared to system airflow by dividing the outside air cfm by the total supply airflow. Ceiling home and sidewall return air grille in pristine white aluminum and steel. If the air duct has not been formed yet then you have a much bigger task on your hands than this article can help you with. Steel baseboard return air grilles w base projection 658 series steel horizontal return air grilles 94a 94at series steel lanced return air filter grilles 659t series.

The function of a grille is to pull air from a room to return it to the heating or cooling system. Here s an example of a giant return air grill near the floor. 99 3 10 in get it as soon as fri sep 18. The single giant return air grill in the floor balances the load at the furnace motor but does nothing to promote cross ventilation in each room.

White floor diffuser the 150mw series is a 2 way air register the 150mw series is a 2 way air register powder coated white used for floor openings. Our smooth glide technology ensures rattle free and quiet airflow from your central air system.