Learn something new every day on Permies! Thanks for all the information folks, knowledge gives us power. Which is better than particulates giving us health problems
Fox, I am with you, and pray for your one kidney. I came out of surgery, chemo and radiation with a vastly different body and an enhanced will to live....having lost one kidney and all saliva glands in the bargain. So these warnings and suggestions are taken to heart; I try my best to stay vertical on this verdant green planet.
Could superwool be put in a cob sandwich for a riser? I envision cutting the blanket, then dunking it carefully into clay slip. I could then slather cob around a wood riser form, add the superwool around that, and finish with another layer of cob. After firing the rocket to burn out the wood, I could inspect for any blanket that might be exposed. Patch then with cob before the next firing. Safe or another folly?
If this sounds plausible, I can give it a try.
Alternatively, I could just stick to cob, fire brick or refractory casting......? Opinions and RMH proselytizing welcome!