[Stoves] New article on clay-body, multi-hole stove testing in Rwanda

[Ronal Larson]

List:  This non-fee stove3 article came to my attention in a manner that might be missed by most on this stove list. 

	 See:  http://eajournalv2.unilak.ac.rw/wp-content/uploads/2019/06/1_-IyakaremyePaper31.pdf <http://eajournalv2.unilak.ac.rw/wp-content/uploads/2019/06/1_-IyakaremyePaper31.pdf>

	This is important because it shows how bad three rocks are.  

	Payment has to be made for a chimney.  It would be interesting to know how long it would be to pay back that expense through fuel savings (independent of health impacts.  The cost of the stove itself must be close to zero - and they all can handle multiple pots.

	It is not clear why the five stoves differ In their efficiencies.  And whether there is still room for further improvement.

	You’ll have to blow up the figures to see the differences.

	Unfortunately - no obvious chance to make char.  But anyone see a way?  The beauty still is the use of clay - for low cost, and multiple pot-holes. 

Ron
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