[Stoves] Dimensions for the Ethiopian Mirt stove

Wed Oct 7 07:54:20 CDT 2015

Dear Stephen

It has to be heated to almost the very edge. The edge of the enjera is thicker and takes the most heat to cook. The clay material to some extent makes the centre less likely to overheat. Spreading the heat around is a challenge from a concentrated source. See Samson's work on this.

Regards
Crispin

Hi Stephen, you need to have a firechamber/ heat exchanger to be able to heat the ceramic plate on top, the mitad. there are various diameters, but you should aim at something between 55 and 65 cm diameter.
regards
Christa

> Am 07.10.2015 um 09:25 schrieb Stephen Joseph <joey.stephen at gmail.com>:
>
> Hi Ron et All
>
> Does anyone have the dimensions for the Ethiopian Mirt Stove for cooking Injera.  I am trying to adapt to make biochar
>
> Thanks
> Stephen
>
>
> On 5 Oct 2015, at 11:41 am, Anand Karve <adkarve at gmail.com <mailto:adkarve at gmail.com>> wrote:
>
>> Dear Stovers,
>> LPG is one of the most user friendly fuels for a stove. I was told that it is a by product of the petroleum refining process. Formerly it used to be burned off, but nowadays it is used as fuel. The cost of LPG is mainly the cost of bottling and bringing it to the user, plus some taxes. As far as the village inhabitants are concerned, the city dwellers are their role model and they would like to have the same life style. When we try to sell  our improved biomass burning stoves, which are of course costlier than the home-made mud stoves, potential users refuse to buy them, because they feel that by spending a little more money, they can get a LPG stove  It is only the do gooders like the Rotary Club and similar other philanthropic organizations who buy improved stoves for free distribution to villagers. We have therefore stopped selling them to villagers. Our main buyers are city dwellers, who occasionally cook on wood or charcoal, just for the fun of it. Our urban household biogas plant is however quite popular, mainly because the municipalities have stopped accepting biodegradable wet garbage (vegetable waste, fruit waste and food waste).
>> Yours
>> A.D.Karve
>>
>> ***
>> Dr. A.D. Karve
>>
>> Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com <http://www.samuchit.com/>)
>>
>> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>>
>> On Sat, Oct 3, 2015 at 11:54 PM, Crispin Pemberton-Pigott <crispinpigott at outlook.com <mailto:crispinpigott at outlook.com>> wrote:
>> Dear Anh
>>
>>
>>
>> In Central Java people ‘too poor’ to use LPG are often seen with a 3 kg cylinder (subsidised) and consume that amount in 3 months. It is used for particular things, mostly making tea and re-heating food at short notice.
>>
>>
>>
>> It is nothing close to being their ‘primary cooking fuel’ but 70% of the population has and uses LPG. About 40% use it ‘primarily’. Of those who do, 70% use wood to heat water, plus the 100% who cook primarily with wood.
>>
>>
>>
>> Where the mix is strong, there is a clean kitchen and utensils, and a dirty kitchen with its utensils, tending to be outside or near the door.  There is a market opportunity to use a dedicated water heater that is clean enough to be used in the ‘clean’ kitchen.  No offers have been received yet…
>>
>>
>>
>> Crispin
>>
>>
>>
>>
>>
>>
>>
>> Dear All,
>>
>> I dont think that would solve anything. There are 2 problems with the poor, access to service and afford service. I dont think a poor family having lpg stoves would meant that they will switch to use lpg for cooking unless lpg is the cheapest or at least highly affordable compare to the income.
>>
>> Vietnam has very good lpg stoves coverage, ~95% rural family that we talked to has lpg stove using 12kg plg tank. But most of them use that 12kg for 3-6 months, some cases up to 12-18 months while city folks use same tank for 20-30days.
>>
>> That a good thing that the Indian PM do but that is not enough to solve the root of the problem, not yet.
>>
>> Anh
>>
>>
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