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re: Window Unit or Portable A/C - Includes a high quality, expert-drawn MS Paint composition!

Posted on 5/26/19 at 11:05 am to
Posted by StringedInstruments
Member since Oct 2013
18469 posts
Posted on 5/26/19 at 11:05 am to
I mentioned that. Hasn’t helped or if it has, not enough. Closing the registers still lets a lot of air out in the cold rooms because of the speed of the air coming through the duct.
Posted by Citica8
Duckroost, LA
Member since Dec 2012
3665 posts
Posted on 5/26/19 at 3:21 pm to
Dampers are before or in the ductwork, not at the registers.

Dampers allow the pressure to build in the plenum which should improve the airflow to other rooms. It’s like partially kinking a water hose next to the supply vs trying to put your finger over the end. Nice even flow vs an uneven and erratic spray.

It still might not be enough if the ductwork is undersized, but it’s something to look for. The guy that came out may and done all of this already.
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