Second Generation Compost Heater

Test results from the second generation compost heater MOTHER EARTH NEWS' researchers designed significantly improved on those for the first.

065 compost heater - core
Mother's second experimental compost heater began with a "core" of material to be composted (consisting of three parts wood chips for every one part manure) that was held in place by a pole-supported chicken-wire cage. (This inner heap measures a full six feet wide by eight feet tall). 
PHOTO: MOTHER EARTH NEWS STAFF