Hello, We produce biochar occasionally in a “kiln” to use in our compost, on Wed, Jan 22nd, starting at noon. It takes about 4 hours. If you are interested in biochar and how to make it, please reply just to me and I will send the location. I’m still learning but will have some people here who know more about it. We make it as a soil amendment and because it sequesters carbon for a long time.
https://en.wikipedia.org/wiki/Biochar
Thanks,
Bill and Mary Ginn
Restoration Farm