The free online document linked below has several interesting low tech/low cost stove designs from around the world, including some commercial scale stoves for feeding lots of people.
DIY
Conduit Dome – Part 5 Wire and Cement
“This was the hardest part of the entire project so far — it was my first attempt at working with cement (other than using a couple bags of ready mix to set fence poles). All in all, I am pleased with the outcome, and learned a lot about what to do, what not to do, and how I would do it if I ever do it again….”
Cabin People Episode 1 – Freedom Plus Cabin Tour
“People should be free. Meet Billy, the cabin and what drove him to walk a different path.”
Tiny Houses And Permaculture For A Resilient And Sustainable Future
“Peak Oil, economic collapse, global warming. There is little question that if humanity remains on the path we are on now, then there is little hope for a sustained existence on the planet. We need to change our thinking and adopt a more harmonious stance to our relationship with the biosphere. The principles of permaculture … Read more
Wood Chip Radiant Heating
“Home Remodel for off grid home power system continued. Boiler reconfigured with water recirculation pump, heat exchanger improved, boiler power now at 60kW or 200k BTU/Hr. Wood chip feed fully automated with manual flame power control (chip delivery speed). Keeping home warm with night T in 20’s (F). Heats home in ~2 hours, good for 24. Next goal, 2000 Gal hot reservoir and home on thermostat.”
Compressed Earth Block Wall Build – Dwell Earth
“Training for an old style of compressed earth block. Dwell Earth traveled to South Africa to train locals techniques in the production of compressed earth blocks using the Dynabloc LM 714 machine.