Heat is often the side effect of powered device. Engines give off heat, even light bulbs give off heat – most of the time this is a side effect that results in what is wasted energy. On the other hand heat from fire is another form of lost energy because besides providing warmth the heat does little else.
But we recently heard about the BioLite Camp Stove that can actually use the heat from the stove, which can be used to cook or just warm up those sitting next to it, as a power source. Essentially the heat is converted into electricity and can be used to power gadgets such as a mobile phone from a USB port. In this way the stove is both heater and generator. And as the name suggests it doesn’t run on fuel, but can burn wood and generate power for phones, lights and other electronics. Not bad for a $129 when the wood burning stove with a USB port arrives this spring.
BioLite Official Website
[Via GearJunkie: Stove Burns Wood, Charges USB-Powered Gadgets on Side]