We’re just about to implement some compost-powered root-zone heat systems for a small, indoor plant nursery and the new high tunnel. These are the best references I came up with on researching the implementation of compost powered root-zone heating systems for greenhouses or other closed growing environments.
Hope you find them helpful!
All of this was inspired by Jean Pain:
A french site with the most complete info I’ve found on Jean Pain so far, with some good links to videos with subtitles at the bottom of the page:
The New Alchemy Institute’s paper of a very well referenced compost powered greenhouse:
Here’s a local copy of the same PDF linked above just in case that site isn’t available in the future:
new alchemy (local copy) pdf
I really love this super low tech, simple, and practical method of achieving root zone heating:
And if you’re wondering how many BTU/hr/ton of compost you can get (1000) Cornell Small Farms did some research:
Root zone heating can provide massive energy savings:
And some practical advice for the installation of such systems: