I went out to my scrap yard and found a 7" SS chimney liner, plugged it with some conduit plugs and slit some holes where needed. Worked incredibly well, thanks for the better ideas.
![](https://i.postimg.cc/B6P9wf9L/temp-Image-U5aa3-X.avif)
![](https://i.postimg.cc/VvyyxZm7/temp-Imageow-NVxv.avif)
I did the left side yesterday and the right side this morn.
![](https://i.postimg.cc/1ztZwNvK/temp-Imagez-Cb-O3-I.avif)
Question about heat treating that I'm a little confused with and that is when should I heat treat. Should I get it more closer to final thickness, it's getting close to that, probably an 1/8"-3/16". Seems to me anyway that maybe I should heat treat it now while clamped in the form to try and set it in place.
I'll be using a heat gun for that purpose, or is heat treating once it's been steam bent not necessary, I just dunno.