As fall temperatures drop and households across the country begin transitioning from air conditioning to heating, determining the right thermostat setting can balance indoor comfort with energy efficiency. Industry professionals have shared targeted recommendations to help residents navigate the seasonal change without driving up utility bills or causing excessive wear on their heating systems.
For most homes in cooler climates, HVAC expert Kim Lincoln recommends setting the thermostat near 68 degrees Fahrenheit, or approximately 20 degrees Celsius, whenever heating is actively needed. Because autumn serves as a transition period between seasons, the primary objective is to maintain a comfortable indoor environment without constantly making dramatic adjustments to the heating controls.
Mike Naughton, founder and CEO of Integrity Energy, supports 68 degrees as an effective starting point for inhabited spaces. He advises that residents can lower the temperature by a few degrees at night or when leaving the home for an extended period, which helps conserve energy while keeping the house comfortable. Additionally, cooler sleeping temperatures have been shown to support better rest.
However, climate variations across different regions mean that a single temperature setting does not suit every household. In warmer southern states such as Texas, Florida, Arizona, and Georgia, where autumn temperatures often remain high and fluctuate significantly throughout the day, Fresh Air Concepts, LLC president Joe Haycock suggests maintaining thermostat settings between 70 and 78 degrees. He notes that greater environmental temperature swings require increased flexibility in thermostat management to prevent unnecessary energy consumption and reduce equipment wear.
Significant financial savings remain possible by strategically managing heating schedules. According to the United States Department of Energy, households can save up to 10 percent annually on heating and cooling expenses by turning the thermostat back seven to 10 degrees for an eight-hour period each day. The department also addresses a common misconception, clarifying that a furnace does not work harder than normal to warm a space back up after a setback. Instead, a lower interior temperature slows heat loss, meaning the house loses less total energy over time.
Additional strategies can help occupants stay warm when the heating is turned down or off. Simple measures include wearing layers of clothing, keeping feet warm in heavy socks, sealing drafty gaps around windows and doors, utilizing a warm water bottle, or using an electric space heater.
