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It depends on how long you will be gone.

Assuming you have a properly sized central air conditioning unit, if you are gone for a typical 8 hour work day you will save money by turning it off when you are not at home. If you are leaving for only a couple of hours the energy savings will not be significant.

Newer thermostats have the ability to set a schedule for the AC unit so that you can have the house begin to cool a set time before you get home. This ensures you are always comfortable at home and also saves you energy.

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14y ago

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