So i found a good deal on a used chimney liner, 200 for 25'. Does this seem safe to use? I would obviously run a brush through it to clean it out before installing. Do these liners get brittle after being in one position for a while under heat, or would it be ok? I also think i would wrap it in insulation as it is going to go in a chiminey on the exterior of my house.
(broken link removed to http://newlondon.craigslist.org/grd/4923943735.html)
(broken link removed to http://newlondon.craigslist.org/grd/4923943735.html)