Code changes require that my new gas furnace (backup for a new heat pump) requires more air than it currently can get in its closed, small interior room.
I can either have the installers:
1. cut 2 fairly large holes (14"x10") in the sheetrock of a large, finished basement room and pull conditioned air from there (one would be right next to the return for the basement), or
2. go through the outside wall and pull unconditioned air.
For aesthetic reasons I'd prefer to pull combustion air from the outside, but appreciate any feedback.