Tag: solar heating

Solar window heater update

I’ve been fixing the window box heater. It’s been working OK over winter but not to its maximum. I’ll rebuild it over Summer and add a temperature control so that it only comes on when the air temperature in the box is over 20°C.… Continue Reading “Solar window heater update”

Window box heater

Last year I started fiddling with passive heating and whipped up one of these window box heaters. I found several flaws with my design and have since learned how to improve the efficiency greatly. For this test, I just leaned it on the sill… Continue Reading “Window box heater”

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