I used a flue pipe and the wall just crumbled as I was removing the old pipe and inserting the new one. Also, the hole in the wall extends much further than I can reach to try to repair past a certain point.
I had to replace a furnace pipe recently and the exhaust goes out a basement wall made of lime mortar that's extremely crumbly. A lot of the crumbling mess ended up in the pipe and blocking the flow so that the carbon monoxide and other gases end up in the house. I need this fixed before the...
