Newly-built compost piles heat up in the center for several weeks, steaming hot sometimes. New Alchemy’s Compost Greenhouse was built to use that heat in the winter in a greenhouse instead of burning fuel.
A sequence of multiple compost piles in bins created continuous, steady heat, which enabled many kinds of crops to grow over many winters. This bioshelter concept works best where a constant supply of compost materials are available nearby.
For more information, read The NAI Composting Greenhouse Report, published 1986.