- Maintain it. Have an air conditioning technician come to your home every spring before it gets too hot and check your system out. The earlier you catch a problem and repair it, the smaller than problem will remain.
- Add insulation to your attic or crawlspace so hot air doesn’t get in the house. The warmer the home’s air, the harder the air conditioner has to work. The harder it works, the quicker it will wear out.
- Make sure your unit is the right size. Bigger isn’t necessarily better when it comes to a/c. A room air conditioner that’s too big for the room it’s supposed to cool won’t operate as efficiently as a smaller one that’s the right size.
- Install a whole-house fan. It will keep your home cool without using the air conditioner on days when the sun’s not too hot or overnight when the outside air is cooler than the inside air.
- Install ceiling fans, or if you have them already, turn them on. Ceiling fans move the air so you’ll feel cooler, which will let you raise your thermostat a few degrees without noticing any difference in your comfort.
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