John Suavecito wrote:
Mart Hale wrote:
Others bury the charcoal in their garden and just allow time for the char to charge.
I think that this method works, and is probably what the original Terra Preta people did. It's fine if, like them, you've got a lot of acreage and don't need to use that land for a few years.
However, if like me, you are already old, and you only have a small amount of land that you can use, you might not want to give up each area that you biochar for a couple of years. If you have a small amount of yard and a short timeline, IMO this method is limiting. Inoculation is really not as hard as giving up productivity of that land for that time, IMHO.
John S
PDX OR
Michael Jacobsen wrote:
Mart Hale wrote:I have a long thread on the sand battery (snip snip)
This is a proven method of using waste oil, it deals with all the problems of impurities in the oil.
Thank you! I will definitely check out your thread and the video. The oil burner design I'm working on is top fed and uses a rear disk break rotor as the base. I will post either a diagram at some point or pictures of the unit itself once it's together if I end up building it. I am mainly concerned with having the sand battery be on the exhaust chimney stack and if I'm going to have issues with backpressure on the system. The exhaust expansion area is a first-thought attempt to mitigate that somewhat while also potentially functioning as a cooking surface. There "might" be a nautilus shell partition in the expansion area that will route the hot gasses around and out. Going to try leaving it open at first and maybe switch later to see the difference. Planning for ~4" ID on most of the pipework. I will be building and testing this unit outdoors but the hope is to be able to run it inside eventually if it proves safe.