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 - water tank
In an experimental attempt to increase the heap's ability to maintain and store a supply of hot liquid, a 30-gallon water heater tank was ""plumbed in" to the line, and then buried in an outer three-foot layer of chicken-wire-supported compost.
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