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Jean Pain questions for heating polytunnel

 
Ludwig Appeltans
Posts: 7
Location: Scotland
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HI Permies.

I have a question about Jean Pain methods.

I want to experiment with underfloor heating in a small part of my polytunnel. I have gathered a fair amount of wood chips. Jean Pain's method was anaerobic to also produce methane to cook with it. I don't want to produce methane because I can't harvest it. (greenhouse gas) there for I understand that I need to try and make it aerobic.

How would that affect the heat of the compost heap?

Would it get hotter and last less long?

What is the best C/N ratio?

CAn anyone recommend me a good pump for a water pipe 20mm thick and circulating water in a 30m pipe?

Thank you

Ludwig
 
Jordan Lowery
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Posts: 1528
Location: zone 7
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we have a 15ft diameter pile that is 8 ft high, it has wood chips and very little manure. the pile has 2000ft of polypipe going through the pile. water goes in at 35-50 degrees and comes out around 150-160f. the pile has been hot for about 18 months. and is still going. we dont even try to keep it hot, i think size has a lot to do with this. if it was small it would be done for months ago.


cant help on the pump sorry.
 
Ludwig Appeltans
Posts: 7
Location: Scotland
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That's exciting that it does work Jordan. Thanks for your reply.

Do you have 2000 feet of waterpipe in it? Wow thats a lot. What diameter? Do you simply use the upwards power of the hot water?


 
josh brill
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His piles weren't anaerobic. He had a container inside the pile that generated the methane. The pile is just like a normal compost pile with a higher C/N. If all you can get is chips adding nitrogen will make it work much more effectively. He used shredded wood and that has a much higher surface area which causes a much quicker breakdown and a faster heat buildup.
 
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