Furnace Cold Air Return Duct

Cold air returns are sized 1 5 times above the supply capacity to prevent negative pressure in the system.

Furnace cold air return duct.

Return air ducting is necessary in almost every room. Have to get the air back to the furnace. 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. Can accept any size collar up to 18 in.

That is why you need a cold air return image 1. 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. A furnace return system must collect all the air being put out by that system. An insufficient return system or one too large will reduce the efficiency of the heating and increase energy bills.

Product is knocked down for shipping and must be. These ductwork tips will help balance your air conditioning and heating system. 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 be easily cut to size.

Menards offers a wide range of ductwork pipe and fittings to help your ductwork systems run efficiently these products are used for warm air return supply and exhaust systems. Used as a central return vent box filter grill not included. In addition its flexibility allows for easier installation in hard to reach areas. Hvac ductwork sizing is critical for proper heating and cooling in every room.

Do not return air from bathrooms and kitchens. If you had no return air in your room you would create a positive pressure.