Setting your thermostat to a colder setting than normal when you turn on your air conditioner will not cool your home any faster and could result in excessive cooling and unnecessary expense.
Source: U.S Department of Energy
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Keep your thermostat "on point"
Nearby objects can make your HVAC work too hard
Avoid placing items like lamps and televisions near your air-conditioning thermostat. The thermostat senses heat from these appliances, which can cause the A/C to run longer than necessary.
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