Hot water from compost - free biological energy

Why Waste
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Published on Aug 17, 2015

We built the 3metre cubed pile around a 100 litre drum rescued from the tip. We layered in the funky food waste from our compost collection with a variation of different materials, all contributing different elemental or structural benefits. These include: Hardwood sawdust, scrub and dead grass, horse manure, cow manure, leaf litter, clay, cardboard, old compost, new compost, fungal compost, lime and paramagnetic rock dust.

The result: Enough water at 44°C to heat two baths to be enjoyed by four people - on a freezing night!

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