Why Your Smart Thermostat Isn't Saving You as Much as It Should

6. Incorrect Temperature Setpoints and Scheduling

Many smart thermostat users unknowingly sabotage their energy savings by maintaining temperature setpoints and schedules that prioritize comfort over efficiency, often without realizing the significant impact these choices have on their energy consumption. The Department of Energy recommends setpoint adjustments of 7-10 degrees when away from home and during sleeping hours, but studies show that most smart thermostat users maintain much smaller temperature differentials, typically only 2-4 degrees, which provides minimal energy savings. This conservative approach often stems from misconceptions about HVAC efficiency and comfort, with many users believing that larger temperature swings will stress their system or create uncomfortable conditions upon return. The scheduling features that could provide substantial savings are frequently underutilized, with many users setting simple "home" and "away" temperatures without taking advantage of more nuanced scheduling options that account for different daily routines, seasonal variations, or specific room usage patterns. Weekend and holiday scheduling presents another common oversight, as many users forget to adjust their smart thermostat programs for different weekend routines or vacation periods, leading to unnecessary heating and cooling of unoccupied homes. The "smart recovery" or "early start" features that many thermostats offer can actually increase energy consumption if not properly configured, as these systems begin heating or cooling well in advance of occupancy to ensure comfort upon arrival. Additionally, many users set unrealistic temperature expectations, maintaining summer cooling temperatures in the low 70s and winter heating temperatures in the high 70s, creating energy-intensive comfort zones that no amount of smart scheduling can make efficient.