If you live in Arizona, you know how brutal the summer heat can get. When you’re away on vacation or just at work during the day, you might wonder: What’s the best temperature to set your thermostat to save energy without damaging your home or belongings?
The Ideal Temperature to Set When You’re Away
The U.S. Department of Energy recommends setting your thermostat to 85°F to 88°F when you’re away in the summer. This helps reduce energy usage while still keeping your home from overheating, which can be especially important in the Arizona climate.
However, there are a few things to consider:
Humidity Control:
While Arizona is dry, long-term exposure to high indoor temps can still affect wood furniture, electronics, and indoor plants.
Pet Safety:
If pets are staying home, aim for 78°F to 80°F to keep them comfortable.
Short Trips vs. Long Trips:
For short absences (a day or two), 80°F–82°F works well. For longer vacations, 85°F is typically safe.
Want to Set It and Forget It? Consider a Smart Thermostat
Smart thermostats allow you to program temperature settings based on your schedule or even adjust remotely from your phone. They’re perfect for summer getaways and can save up to 10% a year on cooling costs.
Why Your AC Might Struggle—And What You Can Do About It
If your current AC is over 10–15 years old, it might be running inefficiently—costing you more money even when you’re away.
Signs your AC may need replacement:
- Rising energy bills
- Uneven cooling
- Loud or constant operation
- Frequent repairs
Upgrading to a high-efficiency AC system can:
- Improve comfort when you’re home
- Reduce energy waste when you’re away
- Increase your home’s resale value
Don’t Forget Your Insulation—It’s Your Home’s First Defense Against the Heat
Even the best AC system can’t work efficiently if your insulation is outdated or insufficient.
Upgrading your attic insulation can:
Prevent heat from seeping into your home while you’re away
Lighten the load on your AC unit
Help maintain a steady indoor temperature
In Arizona homes, we recommend insulation levels of R-38 in the attic for optimal performance.
Schedule A FREE Quote
Ready to Improve Your Summer Comfort and Efficiency?
At AZ Insulation & HVAC Solutions, we specialize in helping Arizona homeowners beat the heat with:
✅ High-efficiency AC installations
✅ Expert attic insulation upgrades
✅ Smart thermostat setup
✅ Free in-home energy assessments
Don’t let your AC overwork while you’re away.
