This is one evening presentation from the 177 PDC evening presentations. The full package of presentation can be found Here.
Erica and Ernie are hands-on teachers of creative, ecological, and practical skills. They are innovators, teachers, and builders of rocket mass heaters, natural building, fire science and much more. You can find out more about them at their website ErnieAndErica.info.
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4
Rocket Mass Heater Builder's Bible
