At the front of both the design of high quality low cost stoves and a robust distribution network is Envirofit out of Colorado State University. Their diligent work in developing combustion chambers that meet precise tolerances to maximize combustion has lead to a family of stoves, lead by the flagship G-3300. The stove uses a special low cost, high heat tolerant alloy that, along with a advanced combustion chamber design, reduces fuel consumption by 50 percent.
The technology is dubbed the rocket stove, a seemingly simple device that has a large vertical cylinder to hold a pot and an opening at the bottom to feed the combustible biomass to efficiently cook a meal or pasteurize drinking water. While the concept has been proven to be simple, effective and best of all cheap, studies in fluid dynamics, geometry, and advanced materials are leading to very efficient high-tech designs which can reduce the smoke by 95 percent.
Add to that the fact that fuel consumption is reduced by half, which helps to curb expenses for families and slows the clearing of forests just for cooking fuel. All of theses factors make these stoves essential for the long term sustainability of a significant portion of the world population. These stoves are precision technologies that are far superior to homemade stoves, and they are designed to be affordable for even the poorest in the world with prices as low as $15 a unit.