Should You Run Your AC All Day? What Suffolk County Homeowners Need to Know

When the heat and humidity rise in Suffolk County, many homeowners ask the same question: Should I leave my air conditioner running all day?

The answer depends on your cooling system, your home’s insulation, and how efficiently your HVAC is set up. In this post, we’ll break down the pros, cons, and smart strategies for using your AC during long summer days.

Pros of Running Your AC All Day

Consistent Comfort: Your home stays at a steady, comfortable temperature all day long, especially during heatwaves.

Humidity Control: Continuous operation helps maintain ideal humidity levels, which is especially important in Suffolk County’s muggy summers.

Avoiding the Rush: Some systems use less energy maintaining a steady temp than powering on and off multiple times.

Cons of Running Your AC All Day

Higher Energy Bills: If your system isn’t energy-efficient or your home isn’t well-sealed, running the AC nonstop can be costly.

System Strain: Constant operation can wear out your unit faster, especially if it’s not sized correctly or regularly maintained.

Cooling Unused Rooms: Without zoning or smart thermostats, you may be cooling empty spaces unnecessarily.

When It Makes Sense to Run AC Continuously

• You work from home or are home all day
• You have pets or family members sensitive to heat
• Your system is high-efficiency and properly maintained
• Your home has good insulation and sealed ductwork

When to Use a Timed or Automated Cooling Schedule

For many homeowners, the best approach is not all day, but rather strategic scheduling:

• Use a programmable or smart thermostat
• Raise the temp when you're not home
• Lower it before you return
• Use ceiling fans to help distribute cool air and feel cooler at a higher temp

Smart Thermostat Tips for Suffolk County Homes

• Set cooling to 78°F when home, 85°F when away
• Create a custom weekday/weekend schedule
• Use geo-fencing features to adjust temps based on your location
• Monitor energy use and savings through the app

Explore Smart Thermostat Options
Learn About Cooling System Upgrades

Did You Know? Setting your thermostat too low (like 68°F in summer) doesn’t cool your home faster — it just increases strain on the system.

FAQs

Q: Is it bad for the AC to run all day?
A: Not necessarily. If your system is sized correctly and maintained, it can handle extended use.

Q: Will a smart thermostat help reduce energy use?
A: Yes. It automates temp changes, helping you save without sacrificing comfort.

Q: What temperature is best to keep energy costs low?
A: 76°F to 78°F when home is a good balance of comfort and savings.

Q: Can running my AC too much cause damage?
A: Over time, yes — especially if your filters are dirty or you skip maintenance.