Clay


[MAGH OPEN STOVE](http://e-maghopenstove.blogspot.com/) is an institutional fixed woodgas stove. This stove is useful for cooking needs of up to 100. With primary and secondary air controls it is easy to operate and highly efficient. For making this stove, "Magh CM" stoves are used inside. This stove is installed at "Open House", Hyderabad, a place for destitute youth for cooking their own food, shelter, studies, etc. Implemented under the "Good Stoves and Biochar Communities" Project, Implemented by GEO with support of GoodPlanet.org France. Stove design by Dr. N. Sai Bhaskar Reddy. For more details visit http://e-maghopenstove.blogspot.com/

Introducing the eco-Kalan in the Philippines
Rebecca Arrieta Vermeer of Dumaguete City, Philippines


What is an eco-KALAN?

An eco-KALAN is a portable stove made of clay consisting of three components: the outer shell (kalan) on which the cooking pot sits; the inner chamber (rocket elbow) where the combustion takes place; and a shelf with air holes to hold the fuel. The space between the kalan and the combustion chamber is filled with wood ash for insulation.

See the eco-Kalan Story http://www.eco-kalan.com/index.php?what

Videos:

Feeding Program at South City Elementary School, Mangnao, Dumaguete City, Philippines

Pilot Lunch Program for 40 school days in Dumaguete City, Negros Oriental, Philippines starting on January 11, 2010. Program is funded by the Philippine Government and administered by the Department of Education.
http://www.youtube.com/watch?v=QRjDNMsJmiE&feature=email

Introducing the Eco-Kalan-C and Eco-Magic Box to the Lunch Feeding Program.

This video demonstrates how to build an Eco- Magic Box; and how to use the Magic Box and the Commercial (C) Eco-Kalan in the Lunch Feeding Program at South City Central School in Mangnao, Dumaguete City, Negros Oriental, Philippines.
http://www.youtube.com/watch?v=VtsM_dm6XZw&feature=email

Avocado Eco-Kalan Presentation, February 19, 2010.
Avocado is a mountain community in the town of Sta. Catalina, Negros Oriental, Philippines. Donors from British Columbia, Canada are Kees & Rebecca Arrieta Vermeer and the Chilcotin Log Church. Avocado is unique in that it was and continues to be a base for insurgencies by the New People's Army.
http://www.youtube.com/watch?v=mqq-vfTepc8&feature=email

The projects are supported by non-profit organizations in British Columbia, Canada.

Stove development has been in collaboration with Nate Johnson and Mark Bryden of Iowa State University and Sebastian Africano of Trees Water and People and Aprovecho Research Center.

Aurelio Martinez Godinez, Febrero, 2010

Hola Gabriela S Duarte Montoya

Muchisimas gracias por la informacion que me enviaste me gustaria compartir algunas fotos de estufas que nosotros hemos echo gracias.

La discusión abajo se copia de nuestra lista de personas a quienes se mandan propaganda

Christa Roth, December, 2009

Good question, Tom: while we were with GTZ in Malawi, we did a lot of work on standardising the dimensions of locally produced fired portable clay stoves (model adopted from Practical Action's work in Kenya). Their selling price ranges from 1- 3 $ in the communities. We all agree that stove-wise, they are not the greatest devices, but the most affordable, accessible and convenient ones in this area. As people mostly don't have kitchens, portability ranges high on the priority list of peoples choices, so mudstoves are not an option here.

Thus we had to work with the available material to produce a stove that people wanted and could afford. With the help of simple moulds and measuring tools we worked towards a uniformity of this artisanal product and standardise the crucial points influencing stove
performance: size of the door, height of the fire-chamber, durability and shape of potrests to ensure a standard gap between stove body and pot., to name a few.
I never had a chance to get the stoves tested for emissions, but they do reduce fuel consumption as compared to the open fire, while the amount of reduction depends more on the user than the stove itself.
I can't quantify the change in performance achieved by these quality control measures, but they definitely led to a much better uniformity and acceptance of this artisanal product. A good-looking stove just sells better!

Dean Still, June, 2005

download the Insulated Rocket Stove for Charcoal pdf
Preliminary Fuel Use and Emissions Test Results:

    Wood Stove
Benchmark
Charcoal
Rocket
(Without
Skirt)
Ghana
Charcoal
Stove
WFP Wood
Rocket
(with Skirt)
Time to Boil min - 22 29 22
Fuel to Cook g 850 604 675 733
Energy to Cook kJ 15,000 23,983 26,089 12,579
CO to Cook g 20 12 74 15
PM to Cook mg 1500 81 85 1289

Richard Boyt, June 2005

The following material is the fifth part of a seven-part condensation from the booklet "Practical Tips for Potters, Making Improved Cooking Stoves",

Prepared by Tim Jones, illustrated by Debbie Riviere, published by Hofman Systems Engineering b.v., PO Box 624, 3100 AP Schiedam, The Netherlands (1993)

Richard Boyt, June 2005

The following material is the sixth part of a seven-part condensation from the booklet “Practical Tips for Potters, Making Improved Cooking Stoves”.

Prepared by Tim Jones, illustrated by Debbie Riviere, published by Hofman Systems Engineering b.v., PO Box 624, 3100 AP Schiedam, The Netherlands (1993)

Richard Boyt, September 2003

Stovers:

Just how and why does plastic clay change as it dries? I know just enough to know that I don't know very much.

Richard Boyt, August 2003

The following material is the fourth part of a condensation from the booklet "Practical Tips For Potters Making Improved Cooking Stoves" Prepared by Tim Jones, Illustrated by Debbie Riviere. Published by Hofman Systems Engineering b.v., PO Box 642, 3100 AP Schiedam, The Netherlands (1993).

Richard Boyt, June 2003

The following material is the second part of a condensation from the booklet "Practical Tips For Potters Making Improved Cooking Stoves. Prepared by Tim Jones, Illustrated by Debbie Riviere. Published by Hofman Systems Engineering b.v., PO Box 642 3100 AP, Schiedam, The Netherlands (1993).

FINDING AND SELECTING CLAY

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