I wrote about something very similar last year, the BioLite camp stove: https://bbot.org/blog/archives/2012/06/13/biolite_camp_stove/ https://bbot.org/blog/arch

I wrote about something very similar last year, the BioLite camp stove: https://bbot.org/blog/archives/2012/06/13/biolite_camp_stove/ https://bbot.org/blog/archives/2012/06/13/biolite_camp_stove... (I'd argue that the BioLite is a better product, despite being twice as expensive, since it can run on wood.) A problem with both products that they use the thermoelectric effect, which is miserably inefficient: The BioLite generated 2 watts from a thermal power of 5500W, for a thermodynamic efficiency of 0.036% Solar panels, on the other hand, don't need to burn anything at all.