Another free energy device. A bit more expensive thought.
A biodigester uses organic waste and transforms it into biogas. You can then use that gas for cooking, heating and more.
That device is better for medium scale usage. Won’t be that efficient for just a family.
It’s fed by
- kitchen waste
- compost toilet waste, also called humanure
- animal waste
You can find more infos about Bio-Digester online. Just follow the links…