Re: Relocate return air vent in open concept floorplan
I wouldn't think to recommend the toe kick since the return vent should be the same volume ( square inch ) as the original..... maintaining the CFM for balance.
Typically the toe kicks are 3-4 inches high ... this will require the return to be only a couple of inches high but considerable inches wide..... likely requiring custom sheet metal work for the vent transistion.
If the only other location is the floor then you might try locating it toward a wall .... at least it would be more out of the way.
Just a thought.
"" an ounce of perception -- a pound of obscure "