[Stoves] Maasai stove and Chimney

[Crispin Pemberton-Pigott]

>From the pictures it seems that the pot is exposed to the flame through a
hole in the metal sheet.
Is that hole round?
How think is the plate?
If the hole is square, was it cut using an angle grinder because that was
the only tool available which can cut material that thick?
In use, does the pot always cover the hole?

Thanks
Crispin


-----Original Message-----
From: stoves-bounces at lists.bioenergylists.org
[mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of rbtvl at aol.com
Sent: Sunday, February 05, 2012 12:20 PM
To: Stoves list
Subject: Re: [Stoves] Maasai stove and Chimney

The women gather a rather hard wood in their dwindling forests.  Don't know
the species.  Probably should. They sit on little stools while the cook. The
cooking surface is about 30 cm above the dirt floor.  I have not analyzed
the height from a technical point of view. 
Bob
Sent from my BlackBerryR smartphone provided by Airtel Tanzania.

-----Original Message-----
From: "Crispin Pemberton-Pigott" <crispinpigott at gmail.com>
Sender: stoves-bounces at lists.bioenergylists.org
Date: Sun, 5 Feb 2012 12:14:33
To: Stoves<stoves at lists.bioenergylists.org>
Reply-To: Discussion of biomass cooking stoves
	<stoves at lists.bioenergylists.org>
Subject: Re: [Stoves] Maasai stove and Chimney

Perfect.

Is there a preferred fuel(s)?
What is the preferred height of the top of the pot from the floor, and
height to the cooking surface, if that is relevant?

Thanks
Crispin


Our fire box is metal, (parts we manufacture from 2mm sheet steel)brick, and
fire resistant mortar. 
The internal chimney is up the wall.  (Maasai women installation teams make
the chimney and install everything.) The chimney is brick made in the
village, and mud mortar as long as inside.  26 cm square. 
We use cement and sand mortar where it penetrates the thatch and becomes
exposed to weather.  Above the thatch we can safely use a metal tube we make
ourselves out of thin sheet that would be inappropiate inside.  The chimney
inside is at most pleasantly warm. Kids can sit right next to mom while she
cooks. The women usually cover the chimney with mud to match the walls.
They love the cleanliness and the added floor space, having removed the
three stones. 



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