wood burning stoves super efficient rocket mass heater
Sign up for my dailyish email, or my devious plots for world domination: Ernie and Erica Wisner have created over 700 rocket mass heaters, quite probably the most efficient woord burning stoves made. Ernie and Erica moderate the wood burning stoves forum at and help thousands of people build these stoves. This video is of their latest wood burning stove. They ve had snow on the ground fo
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