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Casualmente en ecosistema urbano están haciendo un apartado de "fundamentales del diseño ecológico" en inglés, algunos coinciden aunque son muy cortitos

the rocket mass heater, based on rocket stove technology.  This is a wood burning stove that will replace a conventional wood burning stove in a home and keep that same home just as warm using 1/10th the wood.  But that's not all.  You would think that with 1/10th the wood there would be 1/10th the smoke, but it works out to be closer to 1/1000th the smoke.  As a result, the overall environmental damage ends up far less than natural gas, electric, oil or conventional wood heat. Ernie and Erica Wisner have built over 700 rocket mass heaters and what was shown at this workshop is the result of their most advanced work to date.