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mrtoledo

12:39PM | 08/22/03
Member Since: 08/19/03
4 lifetime posts
Bvhvac
I am in the process of having a patio door installed in my kitchen. In the way of the door is a cold air return. Can this return be blocked off with out upsetting the flow of air in the house. Counting the one above there are a total of 4 in the main floor and 1 in the basement.

If I can't block it off, can I just move it in to the floor just off the wall of where it is now?

Thanks

mrtoledo

03:56PM | 08/22/03
Member Since: 08/19/03
4 lifetime posts
Could you please try to explain what I need to provide with a little more detail. I have a 2.5 ton AC Unit.

In my Living Room I have a rather large return that is about 30 inches long and about 5 inches high. The remaining returns are about 16 inches by 5 inches.

CIWS

05:35PM | 08/22/03
Your air handler will naturally increase pressure in the return duct to compensate for the lost return grille if you opt to remove it. When this happens, you WILL loose effiency. It is more a matter of loosing comfort and having more hot/cold spots. Typically for a 2.5 ton residential unit, I like to see around 1000 cfm displaced by the unit. This number varies greatly depending on application. It is always better to move the return instead of removing it.

[This message has been edited by CIWS (edited August 22, 2003).]

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