Originally Posted by kbennett
I would like to put a wall mount register in a new addition. location dictates that it will be in an exterior wall that would require running the duct from the basement between the joists, up through the bottom plate in the wall in question - thus about a foot of the 'duct' would be formed by lining the inside of the studs and wall sheathing with fiberboad then out to the register. Is this 1) legal 2) adviseable? I don't like walking on the registgers if floor mounted and I read a few studies that showed that wall mount works better in my Utah climate (happy medium between optimum floor mount and high wall mount for varying hot and cold seasons).
You install a wall mount in an outside wall and you get a poor distribution in that room.
Floor mount works better. Keeps the warm air at the outside wall. Makes the house/room feel much better.