This air conditioning strategy is the sweet spot for saving energy and money, experts say
Summary
Experts say the best way to save energy and money on air conditioning is to raise the thermostat a few degrees while you are away. Turning off the AC completely for long periods can save energy but may cause problems like mold in humid areas and more wear on the system.Key Facts
- Setting your thermostat 7-10 degrees higher for about 8 hours a day can save up to 10% annually on cooling costs.
- Turning off the AC for short trips (like 15 minutes) does not save energy.
- For workdays around 8 hours long, turning off the AC or raising the thermostat saves energy and money.
- In dry climates, letting the house warm up more by increasing the thermostat is effective.
- In humid climates, turning off the AC can cause moisture buildup and mold problems.
- Raising the thermostat by 1 degree Fahrenheit can reduce cooling costs by about 3%.
- Frequently turning the AC off and on may cause wear and require more repairs.
- Comfort level, AC type, building insulation, and local climate affect the best AC use strategy.
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