Anyone know anything about the possibilities of using a large compost heap to provide hot water for a heating system?
We're in the process of refurbing an old bothy, and it would be possible for us to make use of a large amount of garden waste that is currently burned on an open fire to create a fairly large compost heap, to which could be added kitchen waste and so on.
I've seen very simple designs involving tubing buried in the pile, but I wondered if there was any way to store the hot water as it was produced, or use it to power some radiators in the building
Any info would be much appreciated

