James,
a blogger in Ireland has recently posted
of his gasifier. If "a picture says a thousand words", this says a million.
The device will produce charcoal if you can find a safe method of stopping it when it switches from wood gas burning to charcoal burning, e.g. a cover to shut off all air supply.
For another design see
Philip Small's photos on Flickr. Come on Philip, get your mpegs out
Does anyone know how far this would scale up, e.g. oil drum size?
M
