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Air Intake Vent Size

Posted by aceh (My Page) on
Sun, Sep 30, 12 at 20:46

I have a 3 ton Trane Central A/C and Heating unit, which I was told was a little more unit than I needed for the sq ft I have. The filter size is 20 x 24 x 1. I'm having a 450 sq ft addition put on and was told that I could use my same 3 ton unit. Would it be ok to have the intake vent enlarged to 20 x 25 x 1 since those size filters are easier to find?


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RE: Air Intake Vent Size

There is no harm in making the return larger. Since you are doing this modification, see if you can install a cabinet that will accept a 4 inch media filter.


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