When summer heat and humidity set in, finding the right thermostat settings can make a significant difference in both comfort and your monthly utility bills. At Bartlett Heating & Air Conditioning, homeowners look to our team for guidance and HVAC expertise throughout the year. Here’s what you need to know about optimizing your thermostat, understanding seasonal climate conditions, and taking actionable steps to improve indoor comfort while controlling costs.
What Is the Ideal Thermostat Setting for Summer?
The U.S. Department of Energy recommends setting your thermostat to 78°F when you are at home during the summer. For many homeowners, this provides a balance between comfort and efficiency. If you are accustomed to a cooler indoor climate, start by raising the temperature by just one or two degrees. Each degree you increase above 72°F can save you up to 3% on your cooling costs. This small adjustment can add up significantly during hot and humid summer months.
Adjusting Your Thermostat When You’re Away
A common question we hear at Bartlett Heating & Air Conditioning is how to manage thermostat settings during work hours or vacations. If your family is out of the house for extended periods, consider increasing the thermostat to about 85°F. Avoid setting temperatures above 90°F, as this can negatively affect sensitive appliances and allow humidity to climb, increasing the risk of mold. Programmable and smart thermostats allow you to create a schedule that raises the temperature when you’re away and returns it to 78°F before you arrive home, ensuring you never sacrifice comfort for savings.
Local Climate Factors: Humidity and Indoor Comfort
Summer often brings not only high temperatures but also high humidity, which can make interiors feel much warmer than they actually are. High indoor humidity can cause discomfort even at moderate temperatures. To combat this:
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Use your air conditioner’s “auto” fan setting to help remove moisture.
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Consider investing in a whole-home dehumidifier for persistent humidity issues, especially if your home is older or you have a finished basement.
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Ceiling fans set to run counterclockwise help make rooms feel up to four degrees cooler, allowing you to set the thermostat slightly higher without sacrificing comfort.
Our team regularly provides air conditioning solutions that address both temperature and humidity concerns, helping homeowners stay comfortable throughout the season.
The Importance of Consistent AC Maintenance
A well-maintained system runs more efficiently and responds better to optimal thermostat settings. Schedule annual professional maintenance before peak heat arrives to ensure your system is ready. Prompt air conditioning service or air conditioning repair from a qualified contractor can make the difference between a comfortable summer and costly breakdowns. Maintenance tasks include:
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Changing air filters monthly during peak cooling season.
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Keeping your outdoor AC unit free of debris and surrounding plants.
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Having a professional check refrigerant levels, clean coils, and verify overall operation.
Regular AC maintenance extends your system’s lifespan and ensures you receive the best possible performance and energy savings.
Natural Ways to Keep Your Home Cooler
Beyond thermostat settings, there are several strategies homeowners can use to reduce cooling costs:
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Keep blinds, curtains, and shades closed during the sunniest parts of the day.
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Use blackout curtains on south- and west-facing windows.
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Run heat-generating appliances like ovens and dryers after sundown.
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Seal gaps around windows and doors to keep cool air in and humid air out.
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Upgrade to energy-efficient cooling systems if your unit is more than 10 years old.
Combining these tips with strategic thermostat adjustments boosts comfort and helps keep energy bills manageable, even during the hottest days of the year.
Partner with Bartlett Heating & Air Conditioning for Expert Cooling Solutions
Finding the right thermostat settings for summer isn’t just about the number on the dial. It’s about understanding local conditions, your family’s schedule, and the capabilities of your cooling system. If you’re in Bartlett, IL, and need personalized advice, a smart thermostat upgrade, or reliable air conditioning service, contact Bartlett Heating & Air Conditioning. Our team is dedicated to helping you stay comfortable and energy-efficient all summer long. Give us a call at (630) 372-7640 or fill out our contact form to get started.






