Thank you very much for your responds.
It took me a while to figure out how the sytem works in order to come back to you.
First time ever user of a forum.- Rather interesting!-)
First of all, I want to know if there is a real science to this?
Is ther a mathematical formular to Cold Air Returns versus Warm Air Outlltes?
We gave up one Cold Air Return on the second floor and have now only 2 left up there.
On the first floor we still have 3 cold air returns. There are no Cold Air Returns in the basement.
It did not made much or any difference so far.
Is anything to be aware of it in the future?
Perhaps alocating cold air returns etc is not that crutial after all ?
I will enjoy seeing your comments and advice.