Has anyone had or seen a metal chimney rot out from using coal?
Where does it rot? At the inside seams and joints from acid condensation seeping in? Does the pipe just get thin?
I am installing one in my home this comming weekend and I'm woundering what I can do to make the chimney last longer. What do you guys think of High Temp Silicone on the inside of the pipe, not a lot just enough to fill the seam then wipe off any excess. Then I could damp swab the chimney at the end of the season with baking soda...
Or would different parts of the Silicone break down then traping water in.
Someone hear posted that the life span of the lower grade SS will last 5 to 7 years. The pipe is $400 so thats $60 to $80 a year. Thats really not a lot of money considering what I may save on Fuel Oil but I'd like the pipe to last as long as possible.