New Yorker Magazine Feature on Stoves
Tuesday, December 22, 2009
In a feature entitled Hearth Surgery, Burkhard Bilger chronicles the complex process of designing the perfect cookstove. The excerpt below comes from his follow up blog on the current state of the art:
Finally, Dean Still and the engineers at Aprovecho have joined with a start-up firm called Biolite to create a new generation of low-emissions stoves. Their design incorporates a thermoelectric fan designed by Jonathan Cedar and Alec Drummond, co-founders of BioLite. The fan runs without batteries or external electricity. Instead, it uses the heat from the fire to generate its own power. Cedar and the Aprovecho staff built the prototype in October and presented it for the first time at an international stove meeting in Bangkok, in November. The new stove reduces emissions by more than ninety per cent, compared to an open fire, and should cost about twenty dollars a unit to build. Best of all, it’s user-friendly: unlike other fan stoves, it has a side-feeding combustion chamber that’s easy to refuel. Aprovecho and BioLite hope to make it commercially available by 2011.
