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  1. #1
    Join Date
    Dec 2008

    Default Noisy air return

    We moved our HVAC unit from the basement to the attic and there's a lot of noise at 2 of the air return covers closest to the unit. What can be done to stop this?

  2. #2
    Join Date
    Feb 2009
    Wantagh, New York, USA

    Default Re: Noisy air return

    Sometimes lengthening the return flex will reduce the noise, or even a larger diameter flex, or both.
    If the return flex is very short it will be noisy in some cases.
    Is the unit in the attic suspended from the rafters or just laying on the attic floor?
    Good luck!

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