Installs before the drywall is installed.
Cold air return duct frame.
It provides the transition from the wall duct chase to a wall grille.
This cold air frame does not have tabs.
The tabs provide an easy install.
If the supply ducts are in the floor then the return air should be located up high.
Product is knocked down for shipping and must be.
This cold air frame can either attached to the studs with nails or screws.
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.
First building codes in many areas require that the cold air return line gets external insulation and therefore you will need to leave a gap for the insulation around the duct return line.
Wall grille not included.
Used as a central return vent box filter grill not included.
Because cavity spaces are leaky building pressure imbalances across the building envelope will occur driving air infiltration into the building.
The return air vent openings need to be on the opposite side of the room so the conditioned air is pulled across the room.
A furnace return system must collect all the air being put out by that system.
It is assembled with 1 8 zinc coated rivets.
The master flow cold air frame is used in a heating and air conditioning system to provide the transition from the wall duct chase to a wall grille.
Can accept any size collar up to 18 in.
It has a 1 2 90 degree bend on all four sides.
This product is installed before the drywall goes in.
It can be installed directly onto the wall studs before the drywall is installed to save time and ensure correct placement.
When cavity spaces are used as return air pathways or supply air ducts a few issues will arise.
A cavity space used as a return air pathway will pull pollutants into the building from unknown sources.
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.
This pulls the air across your body.
Running a metal cold air return duct between studs requires knowledge of both hvac systems and the components involved in framing.
4001 mark iv parkway fort worth tx 76106 phone.
Can be easily cut to size.
This product is proudly made in the usa using galvanized steel for durability and rust prevention.
If the supply ducts are high or in the ceiling then the return air ducts or grills should be low on.
21 75w x 31 75h 4 4 out of 5 stars 256 60 99 60.