Fw: Uganda Stove Pictures

["Dean Still" <dstill@epud.net>]

>Dear Friends,

Sending some very small pictures of a fun project.
>
>Emma in Uganda and I have been designing a submerged pot Rocket type stove
>for the last couple of weeks following her testing of Lorena stoves.
>Exposing the sides as well as the bottom of the pot(s) to heat does wonders
>for fuel efficiency. As does using insulative materials between the pot and
>stove body. In this case, Ken Goyer made insulative fire bricks that left
>the appropriate small gap around the pots. The combustion chamber, also
made
>from his recipe, is a 12" high cylinder, 5" ID, placed under the first,
>larger pot.
>
>I tested the prototype today using one pound of wood. The 6.6 pounds of
>water in the first pot (12" diameter) boiled in ten minutes. Figuring
>8,600BTU/pound of wood 40% of the heat either heated water or turned it to
>steam.
>
>We've had a great week of sunny, windy weather here in Oregon and it's been
>very pleasurable to build this stove with Ken and Peter Scott, who is
>heading to South Africa soon to build similiar type stoves.
>
>Best,
>
>Dean
>
>
>

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