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The air conditioner and the heater are just dumb machines that do what you tell them to do. Telling them to "do" is simply a function of an on/off switch. The on and off signalling device can be as simple or as complicated as you want to make it. The sophistication is built into the thermostat. You can do what ever you want to do it you can find the electronics to make it happen and be willing to pay for what you want.
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