The old (and I mean old, like 1972) Mother Earth News had a step-by-step plans for one. All of the old back issues are available on line, complete with pictures and instructions. If I remember correctly, they even had plans for filtering your used moter oil for the heater and told you where to look for the oil.
Forget all that, how about this.
http://journeytoforever.org/biofuel_library/ethanol_motherearth/me7.html
This one looks like a Mother Earth knockoff.
Forget all that, how about this.
http://journeytoforever.org/biofuel_library/ethanol_motherearth/me7.html
This one looks like a Mother Earth knockoff.