Ernie Wisner is a jack of all trades – his rich and varied background includes fishing and maritime work, firefighting, botany, natural building, hydraulics, and plumbing maintenance. Extreme conditions and high-risk work focused Ernie’s attention on survival skills and emergency preparedness. After witnessing hard evidence of global climate change, Ernie’s search for sustainable solutions led him to Cob Cottage Company, where he built his first rocket mass heaters while serving on the research team for Ianto Evans and Leslie Jackson’s pioneering Rocket Mass Heaters . Together with his wife Erica, he has built over 700 super-efficient, clean-burning masonry stoves and led over 50 workshops across North America.
The Rocket Mass Heater Builder’s Guide
$29.25 USD – $44.99 USD
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