[Stoves] Help with rocket stove for Cameroon

[Dean Still]

Hi Huck,

The sunken pot Rocket stove, many sizes, is described in several
publications at www.aprovecho.org

The combustion chamber can be made from a combination of lightweight and
dense bricks.

Best,

Dean



On Sun, Oct 5, 2014 at 3:15 PM, Huck Rorick <huckrorick at groundwork.org>
wrote:

> Hi All,
>
>
>
> We have been looking for an improved wood cookstove for our ultra-low-cost
> housing program in Cameroon (To see more about the program check our
> website at http://www.groundwork.org/English/projects.html and click on
> topics under Cameroon for overview and details of “Conditions in
> Besongabang, Cameroon”).
>
>
>
> We are looking to meet 2 criteria that seem to be a bit uncommon: 1) A
> chimney, 2) A waist high working surface.
>
>
>
> I saw a stove that looks very interesting, the InStove Institutional
> stove.  It is too big for our use but I am wondering if there is anything
> like it that is smaller?  It has several features that are attractive for
> our project:
>
>
>
>    - It uses fuel reasonably similar to what people in Besongabang are
>    accustomed to use.  (As opposed to TLUDs which are quite different in fuel
>    requirement and handling and fire management.)
>    - It has a chimney so that there is almost no indoor air pollution.
>    - You can extend cooking time easily by adding more fuel or reduce
>    time by removing or not adding.
>    - It has excellent thermal efficiency.
>    - It has remarkable performance and emissions numbers.  They say
>    category 4 in 9 of 10 categories and category 3 in the remaining one.  Here
>    is their chart.
>
> 3rd party test results at
> http://instove.org/sites/default/files/InStove%2060%20and%20100L%20ISO-IWA%20Performance%20Report.pdf
>
>
>
> This is a diagram of the stove:
>
>
>
> Some key questions for us:
>
>    - Can it be scaled down to household size?  I understand that larger
>    stoves have generally performed better.  What’s the best we could do with a
>    smaller stove?
>    - What materials does it use?  Will it be affordable?  For example,
>    does it use some expensive high tech insulation?
>
>
>
> Can anyone suggest smaller rocket stove designs that we might consider?
> We need at least one specific set of plans we can follow for a test unit.
>
>
>
> Thanks for any help,
>
>
>
> Huck
>
> Huck Rorick
>
> Executive Director
> Groundwork Institute
> 2640 Silvercrest Street
> Pinole, CA 94564
> Phone: 510-222-4111
> email: huckrorick at groundwork.org
> Website: *www.groundwork.org <http://www.groundwork.org>*
>
>
>
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