I live in a 3 story townhouse with a garage in the basement. Off the side of the garage is our furnace room. The ventilation and exhaust for the furnace goes to the roof. For ventilation (air coming in) I have a straight which opens in the far corner of the Furnace Room, which the furnace sits in the middle of. Currently there is about 4ft of distance between the furnace and the ventilation pipe opening. The furnace room is almost airtight to the garage.
For another project,(to gain room in a closet on the third floor) I would like to move the ventilation pipe so that it opens into the furnace room directly over the furnace. I'd like to do this without cutting a new hole in my roof. So would I be creating any airflow issues if I put a bend into the pipe, and have it open within a foot of the foot print of the furnace. It would have 3 ft of vertical distance between the furnace and the intake.
If the distance is an issue. Could I put another bend in the pipe, in the furnace room, so that it would exit the ceiling directly above the furnace, but continue the pipe to near the same location as it currently exits the ceiling?
If I am over thinking this please tell me.