4 in 1 biogas digester - piggery + toilet + greenhouse + digester

For colder regions, the “four-in-one” model with a greenhouse is recommended so the digester can “live through the winter.”

More info: http://www.ecotippingpoints.org/our-stories/indepth/china-biogas.html 

 

Need Biogas Now?

Get Your Biogas DIY Training Right Here!