I have been experimenting for a few years with rocket stoves and been able to make them successfully with clay mixed with fresh cow manure as well as some straw creating a traditional building material which the Indians have been using in villages for hundreds of years and continue to do so even to this day.. but when I got into pottery and wanted to use the same principal for firing pottery I realized that such a big structure for such high temperatures may not be feasible to do with just cob, but by using firebrick and insulating materials like ceramic fibre etc. I was able to build one with very good airflow, and able to easily reach bisque temperatures.. I will try another firing with a pyrometer soon to check actual temperatures but the first run bisqued about thirty mugs, bowls at a quick 8 hour run with minimal wood and no breakages inside.
Checkout the kiln burning six hours into the firing!
