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LowKey
12-17-2011, 08:57 PM
http://www.builditsolar.com/Projects/BioFuel/biofuels.htm

Ran across this site with various plans and in-depth discussions on various methods of energy production and heating off grid.

All kidding aside, the 3cubic meter methane digester looks like a simple build. It also gives simple instructions on engine conversion.
http://www.builditsolar.com/Projects/BioFuel/VITABIOGAS3M.HTM

Plus there are various plans for masonry heat sinks (we were discussing keeping greenhouses heated overnight in colder climates in some other thread recently.)

Anyway, thought it might be an interesting resource.

crashdive123
12-17-2011, 09:18 PM
You thought correctly. Very interesting.