This link shows the anatomy of my fireplace. At first i didn’t think it did because I didn’t think I had an ash dump but it turns out I do.
https://www.csia.org/fireplace_anatomy.html

I may have forgot to mention. I’ll load a picture. In the picture you’ll clearly see brick, then a 2×12 beam(which stays cool), and above that is where it gets hot. I think it’s brick with some kind of stone type wall, something similar to plaster and lathe. The max temp its reached is about 175 degrees. I would think even hot water pipes passi…[Read more]