I have a friend who is a certified sweep. He recommended the Forever Flex liner. It's a quality ss liner and comes with a lifetime warranty. Apparently all ss liners are not created equally and some of the cheaper ones are prone to issues which really shorten their lifespan.bugsb1 said:well I am looking for a good liner, any suggestions.. the chimney I beleive is lined with terra cotta would flex piping work or is there something better that anyone can recommend