Why not use a clay or solar stove?
We extensively tested many types of stoves before deciding on the metal stove. We chose not to develop a clay stove because extensive lab and field testing showed that a clay stove was not the most fuel efficient choice. Given the scarcity of firewood in Darfur, it does not make sense to produce a less fuel efficient stove when a more fuel efficient and cost-effective solution exists. A less fuel efficient stove will not make a woman safer or help her save fuel. While solar stoves are a great technology, they are not appropriate for the climate of Darfur or for the foods cooked in Darfur which require a hotter temperature, and higher thermal power input than current solar stoves can produce.