Optimal settings balance comfort and efficiency:
Summer (cooling):
When home: 76-78°F
When away: 82-85°F
Sleeping: 75-77°F (personal preference varies)
Winter (heating):
When home: 68-70°F
When away: 62-65°F
Sleeping: 65-68°F
Energy-saving tips:
Each degree closer to outdoor temp saves 3-5% on energy
Use programmable thermostat for automatic adjustment
Don't set temperature extremely low/high expecting faster cooling/heating
Maintain consistent temperature rather than dramatic swings
Extremely low settings don't cool your home faster—they just make the system run longer.