Furnace flue
“recommend installing a carbon monoxide alarm…”
haha…nice pic!
Are you really asking for help here? Nice pic, one for the record books and your photo library for future clients.
I see this a lot and for the life of me can’t figure out why they do this. this is a flue from an old coal fired boiler. It already has two draft units on the flue one can be seen in the picture on the down side of the flue.