getting access to this pipe is turning out to be harder then I originally thought. While brainstorming ideas on how to deal with this I had a thought.
What if I install an inline duct fan like this
Home Hardware - FAN, BOOSTER DUCT 5"
onto the end of that pipe. and have it blowing air back towards the main trunkline. then add a bit more pipe and have it draw air through that hole in the roof?
Any idea if one of these fans can pull air from the room by the woodstove and push it far enough to reach the bedrooms in this manner? I know it's not going to overpower the furnace when it is running and that's just fine.