But besides building a nice fire to keep warm, or using a DIY rocket stove, sometimes it's nice to bring some heat into a chilly tent. (treehugger.com)
If you like this ingenious low - work chicken tunnel garden system, then you'll most likely dig this footage from the same folks of a DIY water heater using rocket stove principles. (treehugger.com)
On the cost side, you're talking about rocket stoves being an order of magnitude cheaper to manufacture and being locally manufacturable which means local employment. (dotearth.blogs.nytimes.com)