Furnace Cold Air Return Duct

Hvac ductwork sizing is critical for proper heating and cooling in every room.

Furnace cold air return duct.

Do not return air from bathrooms and kitchens. A furnace return system must collect all the air being put out by that system. That would then reduce the flow of conditioned air to that space. Can be easily cut to size.

In addition its flexibility allows for easier installation in hard to reach areas. If the furnace is putting out 1 000 cubic feet per minute of air flow the return system must collect 1 000 cubic feet and take it back to the unit. Can accept any size collar up to 18 in. 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.

For the system to work you have to re circulate the air back to the furnace. Return air ducting is necessary in almost every room. Product is knocked down for shipping and must be. That is why you need a cold air return image 1.

Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes. Have to get the air back to the furnace. These ductwork tips will help balance your air conditioning and heating system. Metal and flexible ductwork need to be sealed to guarantee that it is reasonably air tight for maximum efficiency use an approved foil tape or duct sealant.

Used as a central return vent box filter grill not included. An insufficient return system or one too large will reduce the efficiency of the heating and increase energy bills.