Dan Hettinger

Return to Atomizing Oil Burners

Part One available here The nexus of appropriate technology, circular economy and agriculture is a buffet of challenging, interesting projects.  In 2017 and 2018, our continued work in biochar and gasification, and among other esoteric projects, our work with small-scale plastic recycling, – not to mention organizing the WNC Repair Cafe project – have kept […]

Back to Backyard Biochar

Save for our WNC Repair Cafe project, and a handful of appropriate technology workshops, we’ve been pretty quiet over here at the biochar facility for a little while now. Lately, most of our work has centered on upgrading the liquid components of our method of biochar production: we’re going deeper with our research in wood […]

Low Voltage Controls: Part 2

Last time I wrote about controls, things got a little dense real fast.  If all of the talk of switches and relays seemed to lack any relevance, then stay put, because this month I’ll skip ahead and show some real concrete examples of ways we use low voltage controls around on our farm.  Review the […]

Low Voltage Controls: Part 1

  Last weekend I had the privilege of leading Living Web’s first workshop for 2018.  Tech workshops tend to work best in the winter, before the growing season kicks in. Cold weather and a stiff wind kept us in the classroom and bundled up tight for a brief tour of some of the low voltage […]

Atomizing Waste Oil Burners

Update: 10/26/18.  Part 2 available here   Summer HVAC season is coming to a close and lately our local scrap-yard has been teeming with old oil burning furnaces. While Asheville residents are replacing oil burners with updated heat pump systems as fast as they can, conscious builders and tradesmen are recycling the used equipment, and […]

DIY – Make a TLUD Gasifier

By Dan Hettinger, Biochar Facility Manager Last month I wrote a little about the carbon impact of biochar production, and concluded with the assumption that going ‘carbon-negative’ is likely very possible with simple scale ‘backyard’ biochar technologies.  Bob Wells’ immensely popular presentation on the Tin-Man shows an effective DIY method with a single 55 and […]

Closing the Loop – Biochar as Carbon Negative Technology

By Dan Hettinger, Biochar Facility Manager The increase in annual global carbon emissions has stalled in recent years despite strong global economic growth.  In effect, economic growth is no longer coupled with increased carbon emissions.  In 2015, most of the world agreed that we can limit climate change to a rise of 2 degrees Celsius. […]