Return grilles on wall vs. ceiling
My home has return grilles on the wall about 3 ft down from the ceiling on 9 ft walls and about 4 ft down on 14 foot walls on the first floor. In the basement, they are on the wall about a foot up from the floor.
I am planning to install a ERV/HRV to combat elevated humidity in winter; I have had water condense along the ceiling edges and on windows during winter. The ERV/HRV will draw air from the return ducts and dump the fresh air into the basement.
With this setup, I am hoping to somehow draw the moist air in contact with the ceiling into the return grilles on the wall some feet down from the ceiling. If does somehow get drawn, I would appreciate an insight into the physics behind it.
If not, am I then to consider new return grilles on the ceiling? I would like to avoid this to keep costs down.
Posted Aug 31, 2014 6:54 PM ET
Edited Sep 1, 2014 5:30 AM ET
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Minisplit setup for New Jersey, 750 sq. ft. house over crawl. Bouncing my HVAC contractor's plan off you guys.