[quote=Dale Hodgins]Hey John. Do you have a thread concerning that stove. I'd be interested to see it. It looks like poured concrete but I'm going to assume that it's a perlite mix or something else meant to take the heat.[/quote]
Yes i ts full of refractory cement and lots of perlite for volume and insulation. I do have a build thread on here from 2015 or 2016 I think its called "portable cast core on wheels" or something. Otherwise I can show you more videos of the build and testing. It was the 2nd rocket I designed and built myself. Probly the heaviest and one of my favorites.
Here I end up happy with using firebricks to create a rectangular riser, in the testing, research and development.
the bell heat exchanger on this model is also made from a repurposed LP propane tank, while the core was cast into a recycled / upcycled / repurposed BBQ base on heavy dury caster wheels.