Results 1 to 5 of 5
  1. #1
    Join Date
    Jun 2005
    Posts
    42
    Any thoughts on which is better?

    A friend told me the single return was more efficient - the only drawback being that if you start closing doors you disrupt airflow to the single return or you might create a negative presurre in the house.

  2. #2
    Join Date
    Sep 2002
    Posts
    4,970
    more returns then one would be better as long as they are apropriatly located. Usally the only reason you would go with one large one is being it is cheaper puting one in then multiple returns

  3. #3
    Join Date
    Aug 2003
    Location
    Central Kentucky
    Posts
    6,248
    Single returns are fine as long as bypasses are installed in the bedrooms to prevent negative pressure in the main body of the house when doors are closed off.
    If the bypasses are not installed you will definitely expierience airflow issues in those rooms that have doors closed.

    Multiple returns are fine also as long as they are pulling within +/- 10% of the airflow being delivered to the room this will also prevent pressure related issues in those rooms.

    Just make sure the air is getting where it needs to.
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  4. #4
    Join Date
    Oct 2001
    Location
    Waterford Michigan
    Posts
    2,668
    If you have a choice go with a return in every room allowed by code.

  5. #5
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    Originally posted by davidr
    Single returns are fine as long as bypasses are installed in the bedrooms to prevent negative pressure in the main body of the house when doors are closed off.
    If the bypasses are not installed you will definitely expierience airflow issues in those rooms that have doors closed.

    Multiple returns are fine also as long as they are pulling within +/- 10% of the airflow being delivered to the room this will also prevent pressure related issues in those rooms.

    Just make sure the air is getting where it needs to.



    Ditto!

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