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DIY Home Repair Forum: HVAC 07-23-2012, 02:49 AM
Replies: 19
Views: 5,327
Posted By EdB868
Warm upper floor problem

Seal all the ducts (supplies and returns) with mastic.

If there is a 1st floor closet that lines up with an area behind the 2nd floor knee wall, install a 9" round duct through the closet.
...
DIY Home Repair Forum: HVAC 07-21-2012, 04:34 AM
Replies: 19
Views: 5,327
Posted By EdB868
Second Floor AC Problem

If you live in the northern band of the country,
chances are the duct system was designed for heating.

Cooling requires more air flow than heating -
I suspect there is not enough air going to...
DIY Home Repair Forum: HVAC 07-19-2012, 02:21 PM
Replies: 19
Views: 5,327
Posted By EdB868
Warm upper floor problem

How many square feet and how many supply registers are on the upper floor?

It's possible there are not enough supply air registers.

Veteran HVAC professional
www.needtoknowit.org/HVAC
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