Since heating and cooling dominate most electric bills, your thermostat is the single most powerful money lever in the house.
The core idea: widen the gap
The closer your indoor temperature is to the outdoor temperature, the less your system runs. In summer, aim a little warmer; in winter, a little cooler than you might default to. Even a few degrees adds up over a season.
Use setbacks when away and asleep
Letting the temperature drift while you're out or sleeping saves energy — the myth that it costs more to "recover" is mostly false for typical setbacks. A programmable or smart thermostat automates this.
Dress and adjust habits
Layers in winter and fans in summer let you tolerate a wider setpoint comfortably. Fans cool people, not rooms — turn them off when you leave.
Maintain the system
Clean filters and clear vents keep the system efficient. A clogged filter makes it work harder for the same comfort.
Combine with sealing
Thermostat discipline plus sealing leaks and decent insulation is the winning combo — details in how to lower your electric bill. Considering a heat pump? Efficient equipment amplifies these habits.
FAQ
Does turning the thermostat down at night save money?
Yes. Letting the temperature drift while you sleep or are away saves energy; the idea that recovery costs more is largely a myth for normal setbacks.
What temperature should I set my thermostat to save money?
Aim a bit warmer in summer and cooler in winter than your instinct — even a few degrees toward the outdoor temperature cuts runtime. Comfort with layers and fans widens the range.