Furnace Cold Air Return Duct

An insufficient return system or one too large will reduce the efficiency of the heating and increase energy bills.

Furnace cold air return duct.

Cold air returns are sized 1 5 times above the supply capacity to prevent negative pressure in the system. 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. That would then reduce the flow of conditioned air to that space. 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.

Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes. 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. That is why you need a cold air return image 1. Product is knocked down for shipping and must be.

Can be easily cut to size. Used as a central return vent box filter grill not included. If you had no return air in your room you would create a positive pressure. Hvac ductwork sizing is critical for proper heating and cooling in every room.

In addition its flexibility allows for easier installation in hard to reach areas. Do not return air from bathrooms and kitchens. For the system to work you have to re circulate the air back to the furnace. These ductwork tips will help balance your air conditioning and heating system.

Can accept any size collar up to 18 in. Return air ducting is necessary in almost every room.