01-09-2018, 10:34 AM
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#7 (permalink)
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Master EcoModder
Join Date: Jun 2009
Location: SC Lowcountry
Posts: 1,796
Thanks: 226
Thanked 1,353 Times in 711 Posts
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Rocket stove mass heater.
Rocket mass heaters use up to 80% less wood.
Rocket Mass Heaters: The coolest sustainable heater
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