I've been looking at this as a possibleway to heat an outdoor building.... anyone familier with it? http://www.permies.com/t/1351/energy/Jean-Pain-Method http://burlingtonpermaculture.weebly.com/uploads/4/2/8/9/4289790/anotherkindofgarden.pdf http://www.compostpower.org/ http://www.motherearthnews.com/organic-gardening/jean-pain-zmaz80mazraw.aspx
