[Stoves] Help! Are there insulated biogas stoves?

[Ronal W. Larson]

AD:  cc list

	The 90% number here is extraordinarily high.  Ca you give more details?

Ron



> On Nov 14, 2017, at 4:29 PM, Anand Karve <adkarve at gmail.com> wrote:
> 
> Dear Karolina,
> 
> The pot, which is kept on the stove, should be provided with a well insulated jacket which makes the flue gases pass through the gap between the pot and its jacket.  We obtained 90% efficiency with such pots, when tested on stoves using either LPG or charcoal. I am quite sure that it would work in the case of biogas too. The practical difficulty with this solution is that one has to have a jacket for every pot.
> 
> 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 Mon, Nov 13, 2017 at 12:51 PM, Karolina Hagegård <karolinahagegard at gmail.com <mailto:karolinahagegard at gmail.com>> wrote:
> Hi
> 
> I'm currently in Kenya, trying to start up a biogas company:
> 
> https://karolinabiogas.wordpress.com/present-project/ <https://karolinabiogas.wordpress.com/present-project/>
> 
> I'm having problems finding proper biogas stoves!
> 
> Yesterday I had a meeting with a local stoves expert. He sells extremely efficient insulated stoves for firewood, or the husks of coconuts, or "any solid combustible material that you want to put in", and he also sells completely uninsulated biogas burners. So I asked if he wouldn't be interested in developing an insulated biogas stove for me, by the same principle as the firewood stove he had, and I'd be selling it together with my digesters. To my surprise, he wasn't!... He said that in his experience, gas needs lots of air, so you couldn't insulate it... Is it true? I told him I'd think about it and get back to him.
> 
> This morning, I googled, WITH quotation marks, "insulated biogas stove". There were no direct hits. I tried "insulated biogas cooker" and "insulated biogas burners" but still no hits...
> 
> So how is it? Is it really true that you can't make an insulated biogas stove? What's the most energy efficient alternative I can go for?
> 
> Most grateful for any advice!
> 
> /Karolina
> Kenya
> 
> 
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