I have an 'older home' built in 1929. There is no liner at all. That was
fairly common then, but so were chimney fires. I have had chimney sweeps
tell me that I need thousands of dollars in work to add a liner and bring
it to code, but I don't lose sleep over it. It's one of those things that
might be nice if I had money burning a hole in my pocket. It's been
fine for 75 years now.


Dimitri