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    • mikek43

      The suggestion to set the thermostat toahigh temperature and then turn it down when you get home only works if the A/C system is pretty oversized for the house, which makes it less efficient. If an A/C system is sized just large enough to keep up with the heat loss/gain of the house, then you actually want to leave the thermostat set to pretty close to the desired temperature all the time. This results inasystem that is not oversized and doesn’t short-cycle.

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