Well I missed the most recent fireplace insert on CL. This one was 'free'. I was afraid it was a scam so I replied by email to protect my phone number. Well it went right away. Then I realized the ad was real since it was located in a hoyty toyty neighborhood of St Louis. Wifey probably just wanted it out of the house .Firewood related question. I have a Heatilator builtin fireplace. Several fireplace inserts have come across CL that looks promising. I'm considering getting one and converting it to my existing 8" double wall pipe. I know nothing about inserts. Is there a offset from the fireplace flue to the existing chimney and how do you deal with it?
I was wondering if a double-walled flue pipe would work for a fireplace insert. Do I need a masonry flue pipe?