N3OGHYo Soy Col. "Bat" GuanoPremium
After pulling the damaged damper & associated ducting apart, I decided to simply replace the damaged components in the basement for now & install a chimney cap.
The damper was completely inoperative, and the vent going through the wall was completely unsealed. Took some considerable debris from the bottom of the chimney. Enough that IMHO a substantial portion of the fumes were re entering the house.
Assembled a new vent ducting & damper, and used the appropriate cement for the seal between the bottom of the chimney and the ducting.
Everything is back up & running. Decided to clean & tune up the boiler at the same time.
I also purchased a CO detector, my last one took a crap. Something I should have had a long time ago.
Maybe those winter headaches I've been getting will go away now. Sometimes I feel so stupid....
Petty people are disproportionally corrupted by petty power