I am replacing my Clayton Gas insert with a wood burning one so I have to replace the 4" flue liner with a 6" liner. The question I have is what is a reasonable price to ask for my Clayton 40GI gas insert fireplace, gas fireplace logs, as well as the 4" liner that is currently in my chimney? The fireplace was there when we moved in, and I know the guy paid around $1300 when it was installed(with liner) in 1993. Any advice would be helpful.