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A comment on Making a Three-Stone Hearth as Efficient as an Improved Cookstove. Parent comment

Re:Making a Three-Stone Hearth as Efficient as an Improved C... by semi-extrinsic on Monday December 21, 2015 @05:17PM (#10773952)
Ah, sorry, tab mixup on my end, the quote is from another article linked in the comments below; http://www.lowtechmagazine.com/2014/06/thermal-efficiency-co...

Anyway, the question you pose is a good one.

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