Return Air Duct Attic

I ve replaced the supply ducts and have insulated and encapsulated my crawlspace according to the best methods presented on this site.

Return air duct attic.

I ve read a bunch of articles here and on bsc s site concerning ducts in the attic. Return air openings for heating ventilation and air conditioning systems shall comply with all of the following. Ted has more than a few cobwebs in his attic. Install the damper into the duct by drilling a hole into the side of the duct and then screw the damper into place.

Openings shall not be located less than 10 feet 3048 mm measured in any direction from an open combustion chamber or draft hood of another appliance located in the same room or space. If the supply ducts are high or in the ceiling then the return air ducts or grills should be low on a wall. This pulls the air across your body. The return air vent openings need to be on the opposite side of the room so the conditioned air is pulled across the room.

To maintain balanced air pressure and air movement your duct system needs return vents for air in the room to be pulled back into the hvac system. If the supply ducts are in the floor then the return air should be located up high. That s right your heating and air system is nothing more than a big circulation unit. The unconditioned space also houses his hvac system.

Return ducts in my attic. While none of these spaces makes an acceptable air pathway on its own some building cavities such as floor joists can make acceptable duct chases to contain an insulated air sealed metal or flex supply or return duct. My 1948 ranch house has supply ducts in the crawlspace return ducts in the attic. Air handler platforms used as return air plenums can draw air from vented attics and crawlspaces through other connected framing cavities.

I have a couple questions. The damper control indicator will show you whether the damper is open or closed. The takeoff rotates to make it easier to fit the duct into place. Without the return duct the air in the home would not be able to properly circulate.

Not providing enough returns is a common ductwork design flaw that leads to comfort complaints. The ducts through which the air travels are part of a sealed system that usually is located in the attic for structures with slabs or under the floors on structures that are raised off the ground. At 21c i d guess you have a lot of leaks on the return side. In the summer the return duct removes warm air from inside and transports it to the outside to be conditioned.

Put the crimped end in first then put the other end of the duct in.