[Stoves] Briquette stove in cob

[K McLean]

Hi Rok,

Here is a video on using the cooking hole
<https://drive.google.com/file/d/1cHEysp4XfZheuQKXYb9kn9GIeUgwjdzq/view?usp=sharing>
and a video on making liner bricks
<https://drive.google.com/file/d/1qFTEJjGhFrJ5RrA0_WJYrVSPdE-bNbOn/view?usp=sharing>
for the cooking hole.  The cooking hole is a 25x25x25 cm hole dug in a
three-stone cookstove.  When fuel is piled in the hole, it burns without
tending, uses less fuel and emits less smoke than in unmodified three-stone
cookstoves.  The following can be used as fuel:  crop waste (maize stalks,
cassava stems, banana peels, bean stems, etc.) any size wood except very
thin twigs, elephant grass, bamboo, cow dung patties, bamboo, sawdust
briquettes and more.

Please let me know if you would like an introduction to my colleague in
Kasese who has extensively tested the cooking hole.

Kevin
Sun24

On Tue, Jun 28, 2022 at 1:42 PM Rok Oblak <rok.stoves at gmail.com> wrote:

> Hej Crispin and Richard, great to hear your reactions;
>
> I was working with hi density briquettes in Kampala (Nguvu briquettes &
> coffee), but no hole as well. It also seemed the density was kind of not
> giving enough air, tho we got it going in the stove. I remember the machine
> was a huge steam thing :)
> https://briquettestoves.com/2009/07/17/nguvu-stove/
>
> Richard, we used the cube mold as it was ready to go; i imagine the round
> would not be so easy to make and disassemble, maybe a metal barrow cut into
> 3 pieces. We liked the modern cube format as well :)
>
> I didn't see Kevin’s square hole in the ground kinda-TLUD, can you show me
> a photo/link to it?
>
> I will send you a photo of the big cob stove when its ready, it will take
> a month to dry probably! I like the fact that with cob you can make a whole
> kitchen bord/desk, with shelves and all, as its so nice to have a surface
> for pots right next to your fire
>
> Cheers!
> Rok
>
>
>
>
>
> On Mon, Jun 27, 2022 at 11:45 PM Richard Stanley <rstanley at mind.net>
> wrote:
>
>> Rok,
>> Good to hear from you! Thanks as ever for your work on finding practical
>> ways to extend the life of ceramic liners . Its an issue which has promised
>> alot of folks as much -in terms of thermal insulation and resulting thermal
>> efficiency as it frustrates-in terms of your mentioned issue of low
>> structural durability.
>> Do you find it easier to use a cubic shape for the clay sand exterior? I
>> wonder because , it seems that a simple cylindrical form would be easier to
>> shape and use less material and still be  as effective as a thermal ‘
>> cushion given the cylindrical shape of the rocket stove itself .
>>
>> Richard Stanley
>>
>>
>> Sent from my iPhone
>>
>> On Jun 27, 2022, at 7:46 AM, Rok Oblak <rok.stoves at gmail.com> wrote:
>>
>> 
>> Dear stovers,
>>
>> it's been a long time since I've written in the list, but we recently
>> organized a Building with Earth workshop and one detail in the cob table
>> was an integrated cooking stove - a ceramic liner, using biomass
>> briquettes, same type as from Richard Stanley.
>>
>> It showed up as a great update to the holey Roket stove
>> https://briquettestoves.com/ as durability is a big issue as ceramic
>> liners tend to crack and break pretty easily due to temperature shocks, but
>> the cob here is making it last for a long time.
>>
>> I have mixed local found clay and a lot of fine sawdust in the liner and
>> it doesn't make any smoke, only when you push in a new briquette, there is
>> black fumes for a few seconds, until a new one ignites.
>>
>> If you happen to know any projects this principle would be good to
>> integrate, even for other types of wood, I would be happy to share my
>> experiences and possibly collaborate on redesigning existing stoves with
>> this alternative solution.
>>
>> Happy and healthy cooking!
>> Rok
>>
>> --
>> *Rok Oblak, MAA Design*
>>
>> rok.stoves at gmail.com
>> briquettestoves.com <http://www.holeyroket.com/>
>>
>> Gregorciceva ulica 5
>> 4224 Gorenja vas
>> Slovenia
>> [image: IMG_1230.jpg][image: IMG_1191.jpg][image: IMG_1161.jpg]
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>>
>
> --
> *Rok Oblak, MAA Design*
>
> rok.stoves at gmail.com
> briquettestoves.com <http://www.holeyroket.com/>
>
> Gregorciceva ulica 5
> 4224 Gorenja vas
> Slovenia
> _______________________________________________
> 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
>
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>
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/
>
>
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