Handmade barrel stove provides 8 hours of heating and cooking with one load of sawdust — smokeless and unattended. All gases go up the chimney. He heats over 1000 ft2 of uninsulated building. The basic idea can be scaled up to industrial sized heaters and dryers or scaled down for cooking and camping. Other materials such as rice hulls can be used instead of sawdust.
Many people don’t have easy access to firewood or the tools and ability to cut, split, haul and stack it. Buying firewood may be out of your budget. Here we’ll present some virtually free ways of making fuel briquettes and logs at home with simple devices. To make briquettes/pellets/bricks/logs, you can use free materials such as newspapers, junk mail, cardboard, wood chips, wood shavings, sawdust, leaves, pine needles, manure, rice hulls, straw, corn stover and other biomass fibers. The basic process usually involves soaking the materials and then compacting them with a press into blocks.