Marc's design includes a blower and air supply manifold system to aerate the pile, a pipe network to add water to the pile as needed, a pipe network to extract heat from the pile, insulation to increase the efficiency of the composting process, and a nice containment and cover system.
Link to Marc's blog entry on heat from compost...
Other heat from compost schemes on Build-It-Solar...
Judging from the emails I get, there is a lot of interest in using compost to generate heat, but there is not a lot of detailed information out there on how to actually build such as system. I think Marc has taken a good cut at it. What do you think?
Gary
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