Return Air Duct

These ductwork tips will help balance your air conditioning and heating system.

Return air duct.

Have to get the air back to the furnace. Without a return air duct the air would not properly circulate and your energy costs would rise. Product is knocked down for shipping and must be. Nail a piece of sheet metal onto the back of a stud cavity.

Used as a central return vent box filter grill not included. That is why you need a cold air return image 1. Hvac return air is important. Can accept any size collar up to 18 in.

An air return duct is basically a concealed air passageway in a home or other building that acts as a channel for pumping air out of an enclosed room and into the air conditioning or central heating system these ducts typically start with vent grates in the wall on the ceiling or in the floor. If you had no return air in your room you would create a positive pressure. The duct board return air box is an r6 the duct board return air box is an r6 insulated box that installs traditionally in a ceiling. 4 ton unit x 144 square inches 576 squared.

Return air ducting is necessary in almost every room. Return air ducts usually use ceiling joist spaces as the actual duct. The square root of 576 is 24. Can be easily cut to size.

Therefore your return air duct and grill size will be 24 by 24 inches tip. Diameter of duct x 3 14 return air duct in square inches. A return air duct is what carries air back to the furnace after it is dispensed throughout the home through the supply duct. That would then reduce the flow of conditioned air to that space.

Most rooms must have a return duct.