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Passive Solar Window Heater (thermosyphon)

Passive Solar Window Heater (thermosyphon)

Norman B.
Based on a number of units I've seen in various solar DIY publications, this unit fits in any south facing unshaded window, and supplements the heating system in your home or garage. Inexpensive to build, and can be built in a couple of hours. Anything that can slow that meter from spinning is worth a look. I've heard a lot of good things about these units, and plan on building a few for my own purposes. Hope this model is beneficial to you! I've included a cutaway section to show you the internal construction. #heater #passive #solar #window_unit
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