Thanks for the tip. Hopefully I’ll never have to find out. Being a residential bricklayer I inspected quite a few masonry chimney after a fire not one was in my opinion useable. The liners can take the heat but the rapid cooling during when the fire is put out cracks them. Steel chimney not much better the heat warps the crap out of them. Best just use mirror trick and keep it clean.
Tried laying bricks for a chimney once and learned a good lesson 1- Learn how to do it before I try 2- screw it and let someone that knows how do it build it. Real art in laying bricks takes a lot of patience witch I don't have. lol
