When a heatwave strikes, staying cool becomes a necessity—but cranking up the air conditioner can lead to soaring energy bills and increased strain on your HVAC system. Fortunately, there are smart, energy-efficient ways to keep your home comfortable without sacrificing your budget or overworking your air conditioner. Here are some practical tips homeowners can use to maintain a cool and efficient home during extreme heat.
1. Set Your Thermostat Wisely
During a heatwave, it’s tempting to set your thermostat very low, but doing so won’t cool your home faster—it just makes your AC run longer. Aim to set your thermostat as high as is comfortably possible. The U.S. Department of Energy recommends 78°F when you’re home and higher when you’re away. Consider investing in a programmable or smart thermostat that automatically adjusts temperatures based on your schedule.
2. Use Fans to Circulate Cool Air
Ceiling and portable fans can make a room feel a few degrees cooler, allowing you to raise your thermostat without compromising comfort. Make sure ceiling fans are spinning counterclockwise in summer to push cool air down. Fans use a fraction of the energy of air conditioners and are an excellent supplement to cooling efforts.
3. Keep Sunlight Out
Sunlight streaming through windows significantly raises indoor temperatures. Close blinds, curtains, or shades during the hottest parts of the day, especially on sun-facing windows. Consider using reflective window film or solar screens for an extra layer of heat protection.
4. Seal Leaks and Insulate
Cool air escaping through gaps around windows, doors, and ducts forces your AC to work harder. Inspect your home for leaks and seal them with weatherstripping or caulk. Proper insulation—especially in attics and walls—also keeps cooled air inside and hot air out, improving your system’s efficiency.
5. Avoid Heat-Generating Appliances
Ovens, stoves, and even incandescent lights add unnecessary heat to your home. During a heatwave, use microwaves, slow cookers, or outdoor grills to prepare meals. Switch to LED lighting and run heat-producing appliances like dishwashers and dryers at night when temperatures drop.
6. Keep Your AC System Maintained
An air conditioner in top condition performs more efficiently. Replace or clean air filters every month during heavy use, and make sure vents are clear of furniture or obstructions. It’s also wise to schedule professional maintenance at least once a year to ensure optimal performance and identify potential issues before they become costly repairs.
Stay Cool Without the Sticker Shock
Staying cool during a heatwave doesn’t have to come at the cost of high energy bills. By combining smart thermostat settings, routine maintenance, and thoughtful home habits, you can reduce energy usage and keep your indoor environment comfortable, even in record-breaking heat. These tips not only help your wallet but also extend the life of your HVAC system and reduce your home’s environmental impact.
You know the drill. If something goes wrong, schedule an appointment ASAP with Mr. Air Repair, your local team of AC technicians. Family serving family!