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  1. #1

    flex duct splitting???

    Without getting too technical I have a simple question. My system was recently installed. Lots of air movement, 10 ceiling diffusers and two air returns. My living room however is a bigger room with a door and two large windows. It doesn't get as warm as i would like. I looked at the plenum and there isn't anymore space for another takeoff. I would like to add another ceiling diffuser in that room but I cant really see any way. It's all 8" flex duct in the attic, flex rests right on the attic floor in fairly short runs. Someone suggested using a "Y" and adding another run off the flex. Is this ever done? does it cut airflow down much? the new piece would be about 8 feet. Any suggestions would be useful and appreciated.

  2. #2
    Join Date
    Dec 2010
    Location
    The Quad-Cities area (midwest).
    Posts
    2,692
    If the run to the bathroom is also a 8" flex, that would be the one to split.

    1-8" equals 2-6" runs.

  3. #3
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,048
    Quote Originally Posted by George2 View Post
    If the run to the bathroom is also a 8" flex, that would be the one to split.

    1-8" equals 2-6" runs.
    Yep, if the bathroom run is also 8", split it.
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