I'm saving certain heatsinks and pielter devices to sell as one 'sale' to make these from.
DIY Wood Stove Fan for under $50 - All
They sit on top of a log burner and suck out heat from it and the pielter device generates electricity and runs the fan, which blows the hot air off the heatsinks.
That's not a real great one. I'd go for a larger bottom heatsink, fins up, and a vertical downwards blowing CPU heatsink.
The top heatsink has to be colder than the bottom one to generate power. (Pielter devise)
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