In their innovative approach to sustainable agriculture, No Till Growers demonstrates heating a hoop greenhouse using compost, a method that combines eco-friendliness with efficiency. The setup includes strategically placed water barrels on a concrete slab, enhanced with piping within the slab to distribute the heat generated from the composting process. This ingenious system not only utilizes organic waste but also ensures a stable temperature environment for plant growth, highlighting a practical application of composting heat recovery in agricultural settings.

This business is no longer active. They also used fish and compost to heat.  Based in Chicago.