Noticed something unusual during an estimate yesterday. Was up in the attic, saw a 6" smooth metal duct coming up from a ceiling vent and terminating, empty, about 3 feet under the roof. No cap, no insulation, just wide open.
I look in the house and there is a 10 X 12" grate on the ceiling in the laundry room that feeds it, so basically, she has a hole in her ceiling that leads to the unfinished, unconditioned attic.
My first thought was maybe it is for combustion air for the dryer, but she has a full louver door to the laundry room (and she never closes it.)
I would like to remove it and repair and insulate the ceiling because it seems kind of silly.
Could this have some purpose I don't know about?