The idea came from this you tube video:
https://www.youtube.com/watch?v=ZCPuYvIMKi0. I hope this is the correct video - these are very difficult to download with my slow internet connection.
The school is using this energy saving stove that was researched by PODA on their last visit in 2011. This information came via Joint Energy and Environment Projects (JEEP) http://jeepfolkecenter.org/we_care/. When using the stove it takes 75% less wood and it can be made for free as there are no special materials required. This is the cookhouse that is used to cook the food for the student meals. They receive lunch and dinner at the school. Previously they were using the traditional three stone fire for cooking.