Winter heating bills can quickly spiral out of control if you set your thermostat incorrectly, while setting it too low leaves your home uncomfortable and risks frozen pipes. Finding the right temperature balance protects your budget, keeps your household comfortable, and ensures your home stays safe through the coldest months.
This guide explains the most efficient thermostat settings for winter, how to adjust temperatures based on your daily schedule, and practical steps to optimize your heating system without sacrificing comfort.
What Should I Set My Thermostat to in Winter?
Set your thermostat to 68°F during waking hours when you’re home, and lower it to 62-65°F while you sleep or when the house is empty. This balance maintains comfort during active hours while reducing energy consumption by 10-15% during periods when you need less warmth, cutting heating costs without risking damage to your home or plumbing.
Why 68 Degrees Works for Most Homes
The 68°F recommendation comes from the U.S. Department of Energy as the most cost-effective comfortable temperature for winter. This setting keeps most people comfortable in typical indoor clothing while preventing your heating system from running continuously.
Every degree you raise above 68°F increases your heating bill by approximately 3-5%. If you prefer a warmer home, consider layering clothing or using space heaters in occupied rooms rather than heating your entire house to 72°F or higher.
Some households find 68°F too cool, especially homes with elderly residents, young children, or those with certain health conditions. In these cases, prioritize comfort and health over modest energy savings, but avoid setting the thermostat above 70-72°F.
Adjusting Temperature Based on Your Schedule
A static thermostat setting wastes energy when your heating needs change throughout the day. Strategic temperature adjustments can reduce your winter energy bills by 10-20% without noticeable discomfort.
Daytime Settings When You’re Home
Maintain 68°F during active hours when household members are awake and moving around. This temperature works well for typical indoor activities like cooking, working from home, or entertaining.
If you work from home and sit for extended periods, you may feel colder than someone moving around frequently. Add a throw blanket or consider a small space heater for your immediate area rather than raising the whole-house temperature.
Nighttime Temperature Reductions
Lower your thermostat to 62-65°F while you sleep. Most people sleep better in cooler rooms, and blankets and comforters provide enough warmth without heating the entire house.
Avoid dropping below 60°F unless you live in a mild climate. Temperatures below this threshold can make your home uncomfortable to wake up in and may cause condensation problems in some climates.
Away-From-Home Settings
When your home is empty for more than four hours, reduce the temperature to 62-65°F. Your heating system needs time to recover when you return, so avoid dropping temperatures too low if you’ll only be gone briefly.
Never set your thermostat below 55°F when you’re away, even for extended periods. Lower temperatures risk frozen pipes, especially in homes with plumbing in exterior walls, crawl spaces, or unheated areas.
Understanding Thermostat Setback Savings
Setback periods—times when you intentionally lower the temperature—generate most of your winter energy savings. The longer you maintain a lower temperature, the more you save.
An eight-hour setback of 7-10 degrees typically saves 10% on heating costs. If you’re away at work for eight hours and sleep for another eight, you can maintain reduced temperatures for up to 16 hours daily, maximizing savings without affecting comfort during waking hours.
The actual savings depend on your home’s insulation quality, outdoor temperatures, heating system efficiency, and how quickly your home loses heat. Well-insulated homes retain heat longer, making temperature setbacks even more effective.
Programmable and Smart Thermostat Advantages
Manual thermostat adjustments work, but many people forget to change settings consistently. Programmable and smart thermostats automate temperature changes based on your schedule.
A programmable thermostat lets you set different temperatures for morning, day, evening, and night, with separate programs for weekdays and weekends. Once programmed, it adjusts automatically without daily intervention.
Smart thermostats learn your patterns, adjust based on occupancy, and allow remote control from your phone. Some models detect when you’re away and adjust automatically, while others provide energy reports showing exactly how your settings affect costs.
Both types typically pay for themselves within one to two years through energy savings. Installation is straightforward for many homes, though systems with multiple zones or unusual wiring may need professional installation.
Factors That Change Ideal Temperature Settings
The 68°F guideline works for average homes, but several factors may require adjustments to your specific situation.
Home Insulation Quality
Poorly insulated homes lose heat rapidly, making them feel colder at 68°F than well-insulated homes at the same temperature. If your home feels drafty, address insulation and air sealing before raising thermostat settings.
Check for gaps around windows and doors, insufficient attic insulation, or uninsulated rim joists in basements. These improvements make your existing temperature settings feel warmer while reducing energy waste.
Climate and Outdoor Temperature
Homes in extremely cold climates may need slightly higher settings to maintain comfort, as the temperature difference between indoors and outdoors affects how cold surfaces feel. Windows, exterior walls, and floors near outside walls radiate cold even when air temperature stays at 68°F.
In mild winter climates where temperatures rarely drop below freezing, you can use more aggressive setbacks without worrying about frozen pipes or excessive recovery time.
Humidity Levels
Dry winter air feels colder than properly humidified air at the same temperature. Indoor humidity between 30-40% makes 68°F feel more comfortable than the same temperature in air below 20% humidity.
Consider using a humidifier if your home’s air feels dry. This allows comfortable living at lower thermostat settings, though you must monitor humidity levels to avoid condensation on windows or promoting mold growth.
Heating System Type
Heat pumps work most efficiently with smaller temperature swings, so extreme setbacks may not save as much as they do with furnaces. Some heat pump systems perform better with a steady temperature rather than large daily fluctuations.
Radiant floor heating responds slowly to temperature changes, making aggressive setbacks less practical. These systems work best at consistent moderate temperatures rather than frequent adjustments.
Common Thermostat Mistakes That Waste Energy
Several well-intentioned heating habits actually increase energy costs or reduce comfort.
Cranking the Heat to Warm Up Faster
Setting your thermostat to 80°F doesn’t warm your home faster than setting it to 68°F. Your heating system runs at the same rate regardless of the target temperature—it simply runs longer to reach higher settings.
Set your desired temperature and let the system work. If your home takes too long to warm up, the issue is system capacity or efficiency, not thermostat setting.
Constantly Adjusting Settings
Frequent small adjustments throughout the day waste more energy than maintaining a consistent temperature. Pick appropriate settings for different times and stick with them for at least several hours.
Your heating system operates most efficiently with longer, less frequent cycles rather than short bursts throughout the day.
Closing Vents in Unused Rooms
Closing vents in unused rooms seems logical but often backpressures your heating system, reducing efficiency and potentially damaging equipment. Most residential systems are designed to heat the entire house, not selected zones.
If you want true zone control to heat different areas at different temperatures, you need a professionally installed zoning system with dampers and multiple thermostats, not simply closed vents.
Using Space Heaters Incorrectly
Space heaters work well for heating a single occupied room, allowing you to keep the whole-house thermostat lower. However, running multiple space heaters throughout your home typically costs more than central heating.
Electric space heaters are expensive to operate—a 1,500-watt heater running for eight hours costs roughly the same as heating most homes for an entire day with a gas furnace.
Special Considerations for Different Household Situations
Standard recommendations don’t fit every living situation. Adjust your approach based on who lives in your home and how it’s used.
Homes With Infants or Elderly Residents
Young infants and elderly individuals regulate body temperature less effectively than healthy adults. These households may need to maintain 70-72°F, especially in rooms where vulnerable household members spend time.
Use bedroom-specific heating solutions like safe space heaters or heated mattress pads rather than overheating the entire house if only one or two rooms need extra warmth.
Vacation Homes and Extended Absences
When leaving home for days or weeks during winter, set your thermostat to 55-58°F minimum. This setting prevents frozen pipes while minimizing heating costs.
Consider having someone check your home every few days during extended absences to ensure the heating system continues running. A power outage or equipment failure during freezing weather can cause thousands of dollars in pipe damage.
Multi-Story Homes
Heat rises, making upstairs rooms often 5-10 degrees warmer than basements or first floors. A single thermostat location may not accurately reflect temperatures throughout your home.
Place your thermostat on the level where you spend the most time, typically the main living floor. Consider closing upstairs vents slightly if upper levels become uncomfortably warm, though this works best with balancing rather than completely closing vents.
When to Call a Professional
If you maintain appropriate thermostat settings but your home stays uncomfortably cold or heating bills seem excessive, you may have equipment or insulation problems beyond thermostat adjustment.
Contact an HVAC professional if your heating system runs constantly without reaching set temperature, makes unusual noises, produces uneven heating throughout the house, or is more than 15 years old and showing reduced performance. These signs indicate mechanical issues that won’t improve with thermostat changes.
An energy auditor can identify insulation gaps, air leaks, or efficiency problems that make your home difficult to heat. Many utility companies offer free or subsidized energy audits that pinpoint specific improvements worth making.
Balancing Comfort and Efficiency
The most efficient winter thermostat setting means nothing if your household is miserable. Start with the 68°F daytime, 62-65°F nighttime guideline, then adjust based on actual comfort over several days.
Track your heating costs and comfort level with different settings to find your household’s sweet spot. Small adjustments of one or two degrees can significantly impact both comfort and bills, so experiment within the recommended range.
Remember that comfort comes from more than air temperature alone. Warm clothing, blankets, rugs on cold floors, window treatments that block drafts, and adequate humidity all contribute to feeling warm at lower thermostat settings.
Taking Control of Winter Heating Costs
Setting your thermostat to 68°F when you’re home and awake, with reductions to 62-65°F during sleep or absence, provides the best balance of comfort and efficiency for most households. These settings, combined with a programmable or smart thermostat to automate daily adjustments, can reduce winter heating costs by 10-20% compared to maintaining constant higher temperatures.
Start by programming your thermostat with these recommended settings, monitor your comfort and energy bills over a few weeks, and make small adjustments as needed. The most effective winter heating strategy combines appropriate temperature settings with proper home insulation, regular system maintenance, and habits that reduce unnecessary heat loss.
For more practical advice on managing your home efficiently, visit our main resource center or explore helpful home improvement insights to make informed decisions about your property year-round.