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Image:Improved-justa-8.JPG|An example of the proper arrangement of bricks that will work. | Image:Improved-justa-8.JPG|An example of the proper arrangement of bricks that will work. | ||
Image:Improved-justa-9.JPG|The combustion chamber aperture dimension are extremely important for the overall functioning of the stove. [[Foro Para el Desarollo Sostentable Stove Dissemination Program]] specifies that the stove recipients can opt for aperture dimension of between 15 and 20 cm in width and between 10 and 15 cm in height. Users usually prefer the biggest opening possible in order to have the ability to fit larger pieces of wood in. | Image:Improved-justa-9.JPG|The combustion chamber aperture dimension are extremely important for the overall functioning of the stove. [[Foro Para el Desarollo Sostentable Stove Dissemination Program]] specifies that the stove recipients can opt for aperture dimension of between 15 and 20 cm in width and between 10 and 15 cm in height. Users usually prefer the biggest opening possible in order to have the ability to fit larger pieces of wood in. | ||
Image:Improved-justa-10.JPG|Fig 4: | Image:Improved-justa-10.JPG|Fig 4: The exit aperture from the combustion chamber to the chimney chamber is approximately 6 cm in height and 12 cm in width. | ||
Image:Improved-justa-11.JPG|Fig 4: description | Image:Improved-justa-11.JPG|Fig 4: description | ||
Image:Improved-justa-12.JPG|Fig 4: description | Image:Improved-justa-12.JPG|Fig 4: description |
Revision as of 06:02, 12 September 2010
Summary
The Modified Justa Stove is a version of the Justa stove. This particular version is being disseminated by Foro Para el Desarollo Sostentable Stove Dissemination Program located in San Cristobal de las Casas Chiapas. The Foro stove team refers to this stove as the Justa Mejorada which in Spanish means the "Improved Justa." This page is titled "Modified Justa" because calling this stove an "Improved Justa" may be misleading. The main modification that characterizes this Modified Justa from the original Justa is in the design of the combustion chamber. The combustion chamber of the Justa has a metal insert with the classical rocket box shape that has been proven in laboratories to have a high efficiency of transferring energy from the biomass fuel to the cooking surface. In comparison to this the Modified Justa has a larger combustion chamber that is built with bricks. There is no metal insert.
Examples of Modified Justa Stoves in and around San Cristobal de las Casas
Location
Found in Chiapas State of southern Mexico
Organizations using this stove
Foro Para el Desarollo Sostentable Stove Dissemination Program
Building specifications
Materials
Material | Dimensions | Quantity |
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row 1, cell 1 | row 1, cell 2 | row 1, cell 3 |
row 2, cell 1 | row 2, cell 2 | row 2, cell 3 |
Step by step
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This first step is to build a base that can handle the weight of the stove and is at the optimal height for the stove user.
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An example of the proper arrangement of bricks that will work.
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The combustion chamber aperture dimension are extremely important for the overall functioning of the stove. Foro Para el Desarollo Sostentable Stove Dissemination Program specifies that the stove recipients can opt for aperture dimension of between 15 and 20 cm in width and between 10 and 15 cm in height. Users usually prefer the biggest opening possible in order to have the ability to fit larger pieces of wood in.
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Fig 4: The exit aperture from the combustion chamber to the chimney chamber is approximately 6 cm in height and 12 cm in width.
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Fig 4: description
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Fig 4: description