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    jobarr's Avatar
    jobarr Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 23, 2008, 09:26 AM
    Small cold Air returns
    Can I convert my standard cold air return duct to a smaller, hopefully, 4" duct? Trying to gain ceiling height in an older basement.
    Thanks
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 23, 2008, 09:44 AM
    NO not really. You need a massive amount of free flowing cold air to return to the unit. 4 inch pipes will not cut it.

    Now if you will explain in detail the ceiling layout and post pictures I will try and see if I can see a way for you to do it.
    MarkwithaK's Avatar
    MarkwithaK Posts: 955, Reputation: 107
    Senior Member
    		  
    #3

    Nov 23, 2008, 10:33 AM

    Why do I get the feeling that when people ask questions such as these and do not get the answer that they hoped for they end up ignoring the advice given and do what they want anyway?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Nov 23, 2008, 10:37 AM
    Because it is usually true. LOL
    MarkwithaK's Avatar
    MarkwithaK Posts: 955, Reputation: 107
    Senior Member
    		  
    #5

    Nov 23, 2008, 10:41 AM

    Sad. Just plain sad.

    I am not trying to single out the OP here either. Just making an observation.
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