Originally Posted by Laurence
...BTW: most of the time all the doors are kept open. Good.
So the hallway and down into the kitchen is acts like one big plenum because it's one big open area? Yes. ...
Making the changes you suggest will decrease capacity and efficiency. Don't do it.
"I have never let my schooling interfere with my education."
More at: http://www.quotationspage.com/subjects/education/
If you are going to make changes, the ducts need to be designed as a part of the system. As Lynn said you can make things worse.
Be careful with returns near kitchen areas. Odor and grease can be pulled into the duct.
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