Stop Turning Off Your AC When You Go on Vacation. An HVAC Expert Explains Why – CNET0

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• August 27, 2026

When it’s time to leave for vacation, you know the drill: Turn off all the lights, double-check every door is locked and have a neighbor on standby in case you have any packages delivered while you’re away. But what about your air conditioner? Should you turn it off, or is there a magic energy-saving temperature