Making a Three-Stone Hearth as Efficient as an Improved Cookstove

Re:Making a Three-Stone Hearth as Efficient as an Improved C... by ChuckMcM on Monday December 21, 2015 @12:06PM (#10772073)

Looks like increasing the efficiency by providing a better airflow path. This will also make them burn hotter but presumably the cooks can compensate for that.

Nice result from what is essentially steel scrap.

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Re:Making a Three-Stone Hearth as Efficient as an Improved C... by regularfry on Monday December 21, 2015 @03:25PM (#10773256)

It's also a matter of preventing the burnt ash from clogging the airflow as it collapses downwards.

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Re:Making a Three-Stone Hearth as Efficient as an Improved C... by ChuckMcM on Monday December 21, 2015 @03:39PM (#10773349)

True, I saw it more like the typical stove "floor" which has holes in it so that ash can fall past the airflow intake into a collection area below. The effect being exactly as you describe, airflow remains constant even while burning.

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Re:Making a Three-Stone Hearth as Efficient as an Improved C... by CydeWeys on Monday December 21, 2015 @03:21PM (#10773241)

Burning hotter is fine; simply use less fuel to compensate (which is the whole point of this invention).

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