Return Air Ducts In Attic

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

Return air ducts in attic.

Without the return duct the air in the home would not be able to properly circulate. At 21c i d guess you have a lot of leaks on the return side. Remember the lower i can keep the return air temperature the potentially lower we get the supply air temperature. My 1948 ranch house has supply ducts in the crawlspace return ducts in the attic.

Although both the attic floor and the ductwork are insulated ted recognizes the situation isn t ideal. Total rater measured duct leakage must be equal to or less than 8 cfm25 per 100 square feet of conditioned area. The 1 800 square foot brick ranch in climate zone 4 dates from the 1960s but the previous owner installed both a furnace and ductwork in the attic just four years ago. The damper control indicator will show you whether the damper is open or closed.

A mismatch in return air inlet grille or duct size will reduce the system s effectiveness. It s called a jumper duct because it allows return air to jump from your room to the hall. This pulls the air across your body. When return air ducts are lying on the attic floor after confirming that they re efficient and tight we simply bury them beneath a cozy layer of applegate bora spray cellulose insulation as we upgrade the attic insulation.

I ve replaced the supply ducts and have insulated and encapsulated my crawlspace according to the best methods presented on this site. Supply ducts in an unconditioned attic must have insulation equal to or greater than r 6. Visual inspection for prior attempts to improve return air such as holes cut into an existing return air duct or worse openings cut to admit more makeup air into the air handler from an un conditioned space such as an attic or crawl area. A return duct is the part of the system that carries the air back to the furnace or air handler where it will then be circulated back out through the supply vents.

I have a couple questions. A return air temp b outside air temp c airflow across evaporator coil d return air leaks from attic if you measure supply and return temperatures at the grille and at the air handler you can get an good idea of where your biggest losses are occurring. All other supply ducts and all return ducts in unconditioned spaces must have insulation equal to or greater than r 6. If the supply ducts are in the floor then the return air should be located up high.

Typically we cut into your ceiling near the door install a duct above the room run it through your attic and install the other end in the hallway near the central return. Return ducts in my attic. This is kind of like a transfer grille except that it involves ductwork. I ve read a bunch of articles here and on bsc s site concerning ducts in the attic.

Ted also has inherited a powered attic ventilator. Install the damper into the duct by drilling a hole into the side of the duct and then screw the damper into place.