I want to start doing this. What I keep finding online is only these large containers for doing it. I don't have space for a 55gl burn kiln or a kiln for burning at all. How should I go about doing it in your approach
Discussion
Honestly, get a fire ring from tractor supply or any sealed fireplace. As long as the burn stays on the top you’re good to go. I’ve made plenty with a regular outdoor fireplace. When my kiln burns through this is what I’ll use. You can even make the same shape with soil. https://www.tractorsupply.com/tsc/product/tarter-farm-and-ranch-equipment-3-ft-fire-ring
I cut a 55 gallon barrel in half and just do an open burn rather than a kiln. I start with a small fire and keep adding material whenever the top of the burn gets ashy. It's easy to quench when it's done because the barrel I used had its bungs sealed, so both halves hold water.
I think the cone shape would work better because I usually have some wood around the bottom edges that doesn't fully pyrolize. But it's easy enough to separate that and add it to the next burn.

