The 78° debate
78° when home is the efficiency target, but 76–77° is realistic for many households. Every degree lower adds roughly 3–5% to cooling cost.
Do not set it way down when you get home
The AC cools at the same rate regardless of the setting. Setting it to 65° just makes it run longer.
Away settings
82–85° while away in summer is the sweet spot. Higher and the system struggles to recover.
Heat pumps in winter
Avoid big setbacks; large jumps trigger expensive auxiliary heat.
Smart thermostats
Learning schedules and remote control pay off fast. See smart thermostat installation.
Need thermostat installation & repair? See our Thermostat Installation & Repair page, or find your city on the locations page and call (855) 459-5498.
More from the blog
- Why Is My AC Not Cooling? 9 Causes Arizona Homeowners See Most
- How Much Does AC Repair Cost in Arizona? (Flat-Rate Guide)
- Heat Pump vs Furnace in Arizona: Which Is Right for Your Home?
- AC Stopped Working at Night? What to Do Before the Technician Arrives
- Furnace Short Cycling: Why Your Heater Turns On and Off Every Few Minutes
- The Arizona AC Tune-Up Checklist: What a Real Tune-Up Includes
- 7 Signs It Is Time to Replace Your Air Conditioner
- Is Your Attic Ductwork Leaking? How Arizona Homes Lose 30% of Their Cooling
- Monsoon Season HVAC Tips: Protecting Your AC From Dust Storms and Humidity
- Cooling a Garage, Casita or Addition: Why Ductless Mini Splits Win in Arizona
- Commercial HVAC Maintenance in Arizona: Keeping Rooftop Units Alive Through Summer