An outdoor temp sensor is a good idea. It will let you program the Arduino to pull warm air from the kitchen in the summer when it starts to cool in the evening. Can the fans work in reverse, or maybe they can be seasonally turned around?
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Ecorenovation - the bottomless piggy bank that tries to tame the energy hog.
Last edited by Piwoslaw; 04-02-11 at 01:35 PM..
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