Craft & Design Education Energy & Sustainability Science
The Belonio stove

Alexis Belonio is an associate professor in agricultural engineering at the Central Philippine University of Iloilo City. In 2008 he received a Rolex Award for Enterprise for a rice-husk-burning stove he designed. Belonio’s stove is not complicated, either mechanically or conceptually: A columnar metal burner with the addition of a small intake fan at the base to tip the stoichiometry of combustion towards oxidation, giving a blue, clean, efficient flame that leaves little or no residue. Traditional rice husk burners, by contrast, do not have this forced-air feature and produce a yellow, dirty, inefficient flame that leaves tar behind. The upshot is more efficient use of rice husk biomass and greatly reduced pollution from the many rice-husk burners in use today.


I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

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