Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?
Wood, pellets and other solid fuel that grows back: logs, chips, prunings. It feeds stoves, cookers and boilers, and can come from the garden or a nearby wood rather than a delivery.
It arrives on the site on its own. Nothing in the catalogue makes it. In the builder you add it as “Biomass fuel”.