[Stoves] Chitetezo Mbaula as a sawdust stove

[K McLean]

Glad you tried.  Sorry it didn't work.

On Mon, Feb 8, 2021 at 11:31 AM Christa Roth <christa-roth at foodandfuel.info>
wrote:

> Kevin,
>
> its not that easy. We tried long time ago in Malawi and didn’t find it a
> viable option for various reasons:
>
>    - You need a modification as the door is too large (12-14 cm wide and
>    11-13 cm high)  to hold the sawdust in. Otherwise you can’t compact the
>    sawdust, it will fall out in the front. So you need to add a metal piece
>    with just a small hole to put the 2“ pipe through for the horizontal air
>    inlet.
>    - the geometry of the fire chamber is wider than high, so mostly the
>    sawdust did not burn from the central vertical air hole  all the way to the
>    sides of the stove
>    - in Malawi sawdust is neither an easily available resource, nor free:
>       - it is only abundant and often freely available at the big
>       sawmills in the few forest  concessions, yet in those areas wood offcuts
>       are cheaply available and easier to use than sawdust, thus in direct
>       competition.
>       - In the settlements the carpenters mostly have wood shavings and
>       use the sawdust for crack filling of the furniture they produce, so they
>       rarely give the sawdust away for free.  Firewood per kg is cheaper than
>       sawdust
>       - Availability can be very seasonal, especially scarce in rainy
>       season
>
>
> For all those reasons and experiences we did not pursue that idea any
> further. The devil is in the details and convenience plus economy are the
> main reasons for adoption  in this part of the world
>
> Regards from Malawi
>
> Mit freundlichen Grüssen / Best regards
>
> Christa Roth,
> WhatsApp +49 157 301 684 97, Malawi +265 994 652 190, Skype: christa.roth
>
> COVID-19 is real!  Please Protect Yourself and Others: Watch your distance
> - Wash your hands - Wear your (reusable community) mask
>
> Stop Stigma - Stay safe - help prevent the spread - Together we can stop
> the spread of COVID-19.
>
>
>
> Am 07.02.2021 um 22:22 schrieb K McLean <kmclean56 at gmail.com>:
>
> Hi Christa,
>
> The Chitetezo Mbaula looks like it would work perfectly as a sawdust
> stove, without any modifications.  Do you know if it has ever been used
> this way?
>
> <image.png>
>
>
> *Kevin McLean, President*
> *Sun24*
> *info at sun24.solar <info at sun24.solar>*
> _______________________________________________
> Stoves mailing list
>
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org
>
> to UNSUBSCRIBE or Change your List Settings use the web page
>
> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
>
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20210208/6ae98912/attachment.html>