I like the specs of the Nest, but I have a hard time stomaching the idea that I'd need to shell out for three individual units totalling $750 because our house has three zones. It seems like there should be a system for multiple zones where one thermostat is the brains of the system and the other ones are just control knob relays... but no, Nest's solution is simply 'buy more, they'll all work together!'
Actually, a bit of googling and it looks like the Irish-made Climote is designed to support multiple zones in a sensible way, but doesn't seem to be supported outside of Ireland.
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