Compost Water Heater

Here is a report on MOTHER EARTH NEWS' third attempt at building and using a compost water heater.

070 compost heated water - plastic wrapped heater
Our second Jean Pain-style compost heater will be a hard act to follow! Supported by a wire frame and sheathed in black plastic, the circular mound maintained its highest temperature of 140°F for almost two months. Inset: thermometer.
MOTHER EARTH NEWS STAFF