This cook stove is based on a design by Dr. Dieter Seifert. Please follow this link for more information on this. Ben 2 & Ben 3 firewood stoves.
This stove is made up of the parts shown here and can easily be made in a small workshop. The cook stove can be shipped flat packed for assembly locally with just a screw driver.
Here are some photos of locally made JAZ stove in use in Sri Lanka.
Just click on the piece shown to see the pdf of the design drawing.
How to assemble the JAZ stove
Using the JAZ stove