Thermostat Tips: The Best Settings to Save Energy and Stay Comfortable
If you’ve ever walked into a hot house and cranked the thermostat all the way down to 65°F hoping to cool things off faster, you’re not alone. It’s one of the most common habits the Fresh Air Flow team sees among homeowners across Cherry Hill and South Jersey. And one of the easiest to fix once you understand why it doesn’t actually work.
Your thermostat is smarter than most people give it credit for. Used correctly, it’s one of the most effective tools you have for reducing your energy bills without sacrificing comfort.
TL;DR
Aggressively changing your thermostat setting doesn’t make your HVAC system heat or cool any faster—it just makes it run longer. The best approach is setting it to your actual target temperature and leaving it in auto mode. Small adjustments to your thermostat habits can lead to meaningful savings on your energy bills throughout the year.
The Myth: Cranking the Thermostat Makes It Work Faster
This is one of the most common HVAC myths we hear from local homeowners.
When you set your thermostat to 60°F on a hot August afternoon, your air conditioning system doesn’t shift into a higher gear. It runs at exactly the same speed it would if you’d set it to 74°F. The only difference is that it keeps running longer until it either reaches that extreme setting or you manually turn it back up.
The result is an overshooting cycle that wastes energy, causes temperature swings, and adds unnecessary wear to your equipment. You’re not cooling faster. You’re just running your system harder for longer with nothing to show for it.
The same logic applies in winter. Setting your thermostat to 80°F when you want 70°F doesn’t speed up your home heating system—it just guarantees you’ll be too warm by the time it finally cycles off.
Set It to Auto—And Leave It There
One of the simplest and most impactful thermostat tips we give Cherry Hill homeowners is this: keep your system set to auto rather than on.
When your fan is set to “on,” it runs continuously—even when your system isn’t actively heating or cooling. That means your blower motor runs around the clock, which increases energy consumption and circulates unconditioned air through your home between cycles.
In auto mode, the fan only runs when the system is actively conditioning air. This is more efficient, easier on your equipment, and produces more consistent comfort throughout your home.
For heating and cooling both, auto is almost always the right choice.
Best Thermostat Settings for Summer
South Jersey summers are no joke. Here are the settings our technicians recommend for balancing comfort and energy efficiency during cooling season:
- When you’re home: 74°F to 78°F is what works for most families.
- At night and when you’re away: According to the U.S. Department of Energy, setting your thermostat just 7 to 10 degrees higher for 8 hours can help you save as much as 10% on your energy bill.
Use a Programmable or Smart Thermostat
If you’re still using a manual thermostat, upgrading is one of the best investments you can make for energy savings. A programmable thermostat lets you set different temperatures for different times of day automatically so you’re never paying to condition an empty house or scrambling to adjust settings manually.
If you’re unsure which thermostat is compatible with your system or how to configure it correctly, Fresh Air Flow can help you choose and install the right option.
FAQs
What temperature should I set my thermostat in summer?
For most Cherry Hill households, somewhere between 74°F and 78°F is the best thermostat setting for AC systems. When you’re away from home, raising the setting by 7 to 10 degrees prevents your system from running unnecessarily and can meaningfully reduce your monthly energy costs.
Does turning the thermostat way down cool my home faster?
No. Your air conditioning system runs at one speed regardless of how low you set the thermostat. Setting it to an extreme temperature only means the system runs longer than necessary before cycling off. Set it to where you actually want it and let the system do its job.
How much can I save by adjusting my thermostat settings?
The U.S. Department of Energy reports that adjusting your thermostat 7 to 10 degrees from your normal setting for eight hours a day can save up to 10% on your annual heating and cooling costs. For Cherry Hill homeowners running their systems through hot summers and cold winters, that’s a meaningful number.
Should I turn my AC off completely when I leave the house?
No, especially on very hot days. Turning the system off completely allows indoor temperatures to climb significantly, and your system then has to work much harder to recover when you return. A setback of 7 to 10 degrees is one of the best thermostat settings for energy savings and more efficient than a full shutdown in most cases.
Let Fresh Air Flow Help You Get the Most From Your System!
The right thermostat habits make a real difference, but they work best when your HVAC system is running at peak efficiency behind them. At Fresh Air Flow, we serve Cherry Hill and the surrounding South Jersey and Greater Philadelphia communities with HVAC maintenance plans, same-day service, and honest recommendations.
If your system is struggling to keep up regardless of your thermostat settings, it may be time for a professional evaluation. Call today to schedule yours!