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2025-08-08 04:17:31 UTC

Jon F on Nostr: I'm testing out my second attempt at building a solar space heater. I'm a bit ...

I'm testing out my second attempt at building a solar space heater. I'm a bit shocked, it seems to be actually working: it's 16 degrees outside, 31 degrees blowing through the ducting into the window... and there's some high cloud and partial shade on the collector, so conditions are not optimal.

The improvements are: aluminium on the interior for more heat absorption; the backing board and transparent cover are standard sizes, didn't need any cutting; the cover is polycarbonate instead of glass, easier to work with; it has a beast of a fan and a slightly larger solar panel to keep it blowing full blast; the baffles are flush with the transparent panel for more efficient air distribution to absorb the heat from the back panel.

#solar #diy