I hope someone from this excellent group can assist me with this problem. W= e have a cold room on the second floor of our house. We have a forced air, = natural gas heating system and there is only one vent in the room. There se= ems to be very little airflow through the vent. I've checked down the duct = to see if there is any restriction and there doesn't seem to be any problem= . I suspect that the duct is separated somewhere between the furnace and th= e supply vent... The problem is that the vent is inside the ceiling and wal= ls for it's entire run.
My question is: what would be the easiest way to inspect this duct. It has = at least 2 or 3 offsets in it before it makes it's way back to the furnace = so I can't just lower a camera in there.
Thanks for all replies.
Peter H