Compost Water Heaters

For those of us who have successfully composted in the past, we know that a properly made compost pile produces a substantial amount of heat. In fact, when the pile stops creating heat it is usually done “cooking” and ready for the garden.
Jean Pain was a French innovator who lived in southern France from 1930 until his passing in 1981. He was able to create a compost-based energy production system that was capable of producing 100% of his energy needs.
Using compost alone, Jean was able to heat water to 140°F. He used this water for washing, cooking and heating his home. We aren’t talking about a small amount of water either. His system was able to heat water at a rate of 4 L per minute; or almost 1 gallon per minute.

Read rest of article HERE