Let me ask a question which probably is way out of the norm for professionals. Let's say there is a 2-story house which has an uncomfortably big temperature difference from top to bottom. If one made a duct from top to bottom and powered air thru it with a fan, could that possibly work?
I understand a superior way would be to apply Manual D and do ductwork the *right* way. But for this question I would like to assume that will not be done. If possible I would like some help in understanding the pros and cons of doing a "hillbilly engineering" job like this.
While my question is directly about temperature, in my mind I am also wondering whether this might apply to humidity issues. With that direction it is far less clear that Manual D holds the answers.
Any help you can offer with this incredibly naive question, would be much appreciated!
Thank you -- P.Student