Adam Retort ?

[Freerangefarmer]

Does anyone know where one can find info for building an Adam Retort? I've found a couple of sites discussing it, with one or two pictures, but no real details or schematics.

 

Thanks!

[maikeru]

I'm not finding much either. Came across this site in my search:

 

ICPS / Retort Kiln low-cost - Improved Charcoal Production System, Retort kiln

 

But I don't know if it or the people mentioned in it could be of help. Also interested in this.