Flex Duct For Return Air

The duct has r6 insulation which contains 33 more insulation than the standard r4 2 product.

Flex duct for return air.

Duct tape has many uses but sealing ducts isn t one of them. 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. Most technicians are skeptical about these numbers especially on the return air side of the system. Can be easily cut to size.

They are light weight fully insulated and easy to install. Product is knocked down for shipping and must be assembled. These flexible duct products are designed to remain mold and mildew free throughout their lifespan. Flex ducts can be used for heating ventilating and air conditioning systems in both residential and commercial applications.

But if its a return air duct that last answer is wrong if its the only return air run into the unit you need at least a 12 duct. This pulls the air across your body. 10 or 8 will starve the unit and cause it to freeze up which will. The other answers are right go to the the hardware store and get a bag of flex duct.

Can accept any size collar up to 18 in. If the supply ducts are in the floor then the return air should be located up high. Cut through both layers with a razor knife and then the inner tube wire with some dikes or linesman pliers. When ducts are located outside the conditioned space they should be sealed to prevent loss of conditioned air and also insulated to prevent thermal loss or gain from the ambient air.

Our website offers a variety of residential flex ducts air connectors and sleeves manufactured by hart cooley. For instance a 2 5 ton system approximately 400 cfm per ton would require 2 14 flexible return ducts or 1 very short flexible 18 duct to move the 1000 cfm required by the 2 5 ton system. The return air vent openings need to be on the opposite side of the room so the conditioned air is pulled across the room. Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct.

For most systems the minimum duct size see table 1 is sufficient for up to 25 feet 8 m with no more than three 90 bends. Used as a central return vent box filter grill not included. This additional insulation provides greater thermal efficiency to save energy. The master flow 4 in.

Supply air from furnaces and air conditioners should be on outside walls. Item 1790033 model 1790033.