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Finding the Optimal AC Temperature During a Heatwave

Updated: 6 days ago

As the scorching heat of a summer heatwave bears down, homeowners often find themselves questioning the optimal temperature to set their air conditioning system. While personal comfort plays a significant role, it's essential to strike a balance between staying cool and energy efficiency.

lady fanning herself to stay cool

How to find the right temperature

Consider your own comfort. One of the primary considerations when setting your AC temperature during a heatwave is personal comfort. Everyone has different comfort preferences, so it's crucial to find a temperature that suits you and your household members. The general recommendation for a comfortable indoor environment is around 72-78°F (22-26°C). However, you can adjust this range based on individual preferences and tolerance to heat. Experiment with different temperatures to find the sweet spot that keeps you cool and comfortable.

Energy efficiency. While staying comfortable is important, it's equally crucial to be mindful of energy efficiency and cost savings during a heatwave. Setting your AC temperature too low can lead to excessive energy consumption and skyrocketing utility bills. The U.S. Department of Energy recommends keeping your thermostat set to the highest comfortable temperature to maximize energy savings. For each degree you increase the thermostat setting above 78°F (26°C), you can potentially save 6-8% on cooling costs.

Use a programmable thermostat. Programmable thermostats offer an excellent solution for optimizing your AC temperature during a heatwave. These devices allow you to set temperature schedules, adjusting them automatically based on your daily routine. Consider programming higher temperatures when you're away from home or during the night when the outside temperature is relatively cooler. By doing so, you can save energy and still return to a comfortably cool home without having to run the AC at full blast all day.

Use other cooling methods. To complement your air conditioning system and maintain a comfortable indoor environment during a heatwave, consider utilizing supplementary cooling methods. Ceiling fans, portable fans, and window coverings can help circulate the cool air efficiently and reduce the workload on your AC. By using these methods in conjunction with your AC, you can achieve a comfortable temperature while minimizing energy consumption.

Optimize your home’s insulation. Proper home insulation plays a crucial role in maintaining a consistent indoor temperature during a heatwave. Ensure your home is well-insulated to prevent cool air from escaping and hot air from entering. Seal any air leaks around windows, doors, and ducts, and consider adding insulation to walls and attics if necessary. By reducing unwanted heat gain, you can minimize the strain on your AC system and maintain a comfortable indoor environment more efficiently.

The bottom line

Finding the optimal AC temperature during a heatwave requires a balance between personal comfort and energy efficiency. Experiment with different temperatures to discover what works best for you. By utilizing programmable thermostats, supplementary cooling methods, and optimizing your home's insulation, you can achieve a comfortable indoor environment while keeping energy consumption and costs under control. Stay cool and enjoy the summer while making smart choices for your AC usage.

Call us

The best thing to do for your HVAC system, of course, is to consult a professional. Do you feel like your A/C is trudging along, isn’t as efficient as before, or is acting up? Start right here by giving us a call here at Tri-Point Refrigeration and we would be ecstatic to take a look at your unit, as well as give you some tips to summer-proof your home! Reducing the pressure on your A/C unit will ensure its longevity, as well as protect your wallet from costly repairs or replacements.

We’re excited to help you along the way, and with regular servicing, we can keep your equipment running smoothly and healthily, while also extending the reach of your dollar.

For a direct line to any of our employees ready on the line to help you, please call…(512) 651-4565 for our Austin, Texas community (806) 686-0050 for our Lubbock, Texas community. Or check out our website at

<a href="">Image by stefamerpik</a> on Freepik


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