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  • ​Looks great! I have one on my 7X9' south facing garage door with an Arduino controller on it that polls the garage temp and the temp between the plexi and the garrage door when it's closed. I t opens and closes the door automatically when the temperature difference is +10. Working for a few years now. It works well to maximize the heat gain, and will close if clouds go by, and open again after the sun comes out.

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