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Solar Oven Experiences?
(lemmy.world)
The space to discuss Solarpunk itself and Solarpunk related stuff that doesn't fit elsewhere.
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I've built them from layers of foraged cardboard, aluminum foil for the reflector, and scavenged glass for the cover. A bit of black paint inside, possibly a black painted brick or several to hold heat in their thermal mass. They can work pretty well, if one has the time to keep it oriented towards the Sun. There are single and double axis heliostat designs that can keep it on the Sun, but that's getting fancy. Depends on what you want, I suppose.