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mass heaters here.

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allen lumley
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Location: Northern New York Zone4-5 the OUTER 'RONDACs percip 36''
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For Exactly what it is, an in home 1 family sized replacement for the 3 rock open indoor fires This is an additional step forward for the 60% of the Planet's Eight

Billion people !

This is not to be compared with rocket mass heaters, or even the slightly higher efficiency Industrial Cook Stoves with or without Vertical solid fuel feeds

Please before you post ! Follow up with this link too !

For the Good of the Worlds People ! Big AL

Late note : There is mention of "concrete modular units'' these simple cook stoves operate at much lower temperatures than found in a RMH, and there is no specific

use of the term 'Portland cement', this is probably a good place for 'Ciment Fondue' I will check into this !A.L.

I found the 2nd video that is supposed to go with this ! Link below
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