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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallShort answer: in most U.S. homes, you should not turn the heat completely off when you are not home. Lower the thermostat instead. A good winter starting point is about 68 degrees F when you are home and awake, then 7 to 10 degrees lower for at least 8 hours when you are asleep or away. For a normal workday, that often means 60 to 62 degrees F. For a winter vacation in a climate where freezing is possible, most homes should stay somewhere around 55 to 60 degrees F, with extra freeze precautions.
That recommendation is not just about comfort. It is about building risk. Heat loss happens unevenly. Your hallway thermostat may read 56 degrees while a pipe in an exterior wall, an unsealed crawlspace, a garage-adjacent bathroom, or a windy corner of the house is much colder. On our remodel and repair jobs, the expensive failures are rarely caused by someone setting the house to 62 for the day. They are caused by heat being turned off, poor insulation around plumbing, disconnected ducts, leaky crawlspaces, and homeowners assuming the living space temperature tells the whole story.
The useful question is not simply, “off or on?” It is: How low can this house safely go for this absence, this weather, and this heating system? That answer changes with the home’s insulation, air sealing, plumbing locations, HVAC type, humidity, thermostat controls, and the length of time you will be gone.
Why Lowering the Thermostat Saves Money
A common myth is that lowering the thermostat wastes energy because the furnace has to “work harder” later. That is not how heat loss works. Your house loses heat faster when the indoor temperature is much warmer than the outdoor temperature. When you lower the thermostat, the temperature difference shrinks, and the house loses heat more slowly during that setback period.
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#1 Best Overall
- 【Notice】Please make sure to read the installation and wiring instructions provided in the pictures carefully before buying. If you are inexperienced with installation, it is advised to be cautious when making a purchase to avoid issues like product failure or incompatibility. (Verify the existing base to ensure only 2 to 5 wires are compatible for installation and wiring).
- 【Thermostat Applications 1H/1C】for with Conventional Single-Stage Heating & Air Conditioning, up to 1 Heat and 1 Cool. Gas/Oil/Electric Furnace (Heat only), Boiler Radiant (Heat only), Furnace Forced-Air (Heat Only), Gas Fireplace (24 Volts), Cooling Only, Only 1H/1C Heat Pump (without aux) Systems.
- 【Incompatible Systems】Does not work multistage systems (1H/2C, 2H/2C), HVAC heat pump systems (2H/1C, 4H/2C), PTACs, 3-wire hydronic (hot water), dual fuel/hybrid heating. Does not work line voltage systems (120-240V electric baseboards heat); mini split heat pump air conditioner, RV air conditioners mach and roughneck series.
- Suuwer S705 5-1-1 day programmable thermostat 1 Heat/ 1 Cool. Separate programs for the weekdays and weekends with 4 program periods per day including wake, leave, return and sleep.
- 【Technical support】 Separate heat or cool swing set up (0.2°F to 2°F) and 5 minute compressor delay protection (Selectable ON or OFF). Digital thermostat has a built-in battery change and filter change reminders (Set 50-2000 hours)
Department of Energy-style guidance commonly used by utilities and state energy offices says setting the thermostat back 7 to 10 degrees F for at least 8 hours a day can save up to about 10% per year on heating and cooling. ENERGY STAR estimates heating and cooling make up nearly half of a typical U.S. household energy bill, more than $900 per year, and ENERGY STAR certified smart thermostats save about 8% of heating and cooling bills on average, roughly $50 per year for an average household.
Those are averages, not guarantees. A leaky 1970s ranch in a windy part of the Midwest behaves differently from a tight new build in North Carolina. Fuel type matters too. EIA’s 2025-2026 winter fuel outlook showed very different bill pressure by heating fuel: electricity and natural gas customers were exposed to higher seasonal costs in many forecasts, while propane and heating oil moved differently by region and weather case. The takeaway for a homeowner is simple: the savings from setbacks are real, but they depend heavily on weather, utility rates, insulation, equipment efficiency, and how aggressively the thermostat is managed.
The Best Thermostat Settings When You Are Away
For most conventional forced-air gas furnaces, oil furnaces, and electric furnaces, a 7 to 10 degree setback is a practical target when the house will be empty for 8 hours or more. If you normally keep the house at 68 degrees F, set it to about 58 to 61 degrees F during the workday. Many homeowners settle at 60 or 62 because it saves energy without making the house feel painfully cold during recovery.
For short errands, do less. If you are gone for 1 to 3 hours, dropping the thermostat 2 to 4 degrees is usually enough. Turning the system off for a quick trip is not worth the comfort penalty or the risk of forgetting to turn it back on.
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For overnight, 60 to 62 degrees F works well in many homes if the bedrooms are comfortable and there are no condensation problems. In older homes with drafty windows, poorly insulated walls, or plumbing on exterior walls, stay conservative until you see how the house behaves during a cold snap.
For vacation, do not use “off” as the default. In freezing climates, 55 to 60 degrees F is the common safe range, with the exact setting depending on the home. A tight, well-insulated house with interior plumbing may be fine at 55 degrees F. A house with a vented crawlspace, pipes in exterior walls, an attached garage bathroom, or a history of frozen lines may need 58 to 60 degrees F, plus Pipe insulation, sealed air leaks, cabinet doors opened under sinks, and someone checking the home during severe cold.
| Situation | Typical setting | Best practice |
|---|---|---|
| Home and awake | About 68 degrees F | Adjust up or down for comfort, age, health, and room balance. |
| Gone 1 to 3 hours | 2 to 4 degrees lower | Use a small setback instead of turning heat off. |
| Workday absence | 7 to 10 degrees lower | Often 60 to 62 degrees F if occupied setting is 68. |
| Sleeping | 60 to 62 degrees F in many homes | Watch bedroom comfort, window condensation, and humidity. |
| Winter vacation | 55 to 60 degrees F | Keep freeze protection active and use leak or freeze alerts. |
| Heat pump home | Often 2 to 4 degrees lower | Avoid large recovery that triggers electric auxiliary heat. |
When Turning the Heat Off Can Backfire
Turning the heat off can save energy in theory. In practice, winter houses are not laboratory boxes. They have plumbing runs, basements, crawlspaces, rim joists, ducts, attic bypasses, exterior hose bibs, and rooms that do not all cool at the same rate.
Frozen pipes are the big risk
Frozen pipe damage can dwarf a month of heating savings. A burst line can soak drywall, flooring, cabinets, insulation, subflooring, and electrical components before anyone notices. The repair bill may include emergency plumbing, water extraction, demolition, drying equipment, mold prevention, new insulation, drywall, paint, trim, flooring, and cabinet work.
The dangerous part is that the thermostat only reads one location. A thermostat in the central hallway may be satisfied at 55 degrees F while a water line in an exterior kitchen wall is exposed to much colder air. We pay close attention to pipe locations during renovations because the building assembly matters as much as the thermostat setting. Pipes in exterior walls, over unconditioned crawlspaces, near garage ceilings, in cantilevered floor areas, or behind poorly sealed cabinets need extra protection.
Humidity and condensation matter
The EPA’s mold guidance is a useful benchmark: keep indoor relative humidity below 60%, ideally between 30% and 50%. In humid climates, tightly built homes, or homes with known moisture issues, turning the HVAC system fully off can allow humidity to climb. In cold weather, lowering the indoor temperature can also push window glass, wall corners, and poorly insulated surfaces closer to the dew point, which can cause condensation.
If you see water on window glass, mildew near exterior corners, musty odors, or damp closets after aggressive setbacks, the house is telling you the setting is too low or the enclosure needs work. Better air sealing, insulation, ventilation, and humidity control will do more than chasing a lower thermostat number.
Rank #2
- PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
- EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
- SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports
- SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don’t have to patch and paint your walls
- SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement
Recovery time affects comfort
A well-sized heating system is not supposed to blast a cold house back to comfort instantly. It should heat steadily and safely. If you set the thermostat down to 55 degrees F and expect 70 degrees F twenty minutes after you walk in, you may be disappointed, especially in homes with radiant heat, cast-iron radiators, slab heat, high ceilings, or lots of thermal mass.
Programmable and smart thermostats solve this by starting recovery before you arrive. That is better than maintaining comfort temperature all day, and better than walking into a cold house and manually cranking the thermostat up 5 extra degrees, which does not heat the house faster on most systems.
Heat Pumps Need a Different Setback Strategy
Heat pumps are the major exception to aggressive winter setbacks. A heat pump is efficient when it can move heat steadily. But if the thermostat sees a large temperature gap during recovery, many systems bring on electric resistance auxiliary heat. That backup heat is fast, but it can be expensive, and it may reduce or erase the savings from the setback.
For heat pump homes, start with smaller setbacks: often 2 to 4 degrees F instead of 7 to 10. Use a heat-pump-compatible thermostat with adaptive recovery, compressor-first logic, or settings that limit unnecessary auxiliary heat. The right setup depends on the equipment, climate, and thermostat model. A newer cold-climate heat pump may handle setbacks better than an older system with frequent strip heat use.
If you are not sure what your system is doing, check the thermostat display or runtime report. Look for “AUX,” “Emergency Heat,” or unusually high electric use during morning recovery. If auxiliary heat runs often after a setback, reduce the setback or have an HVAC technician adjust the thermostat configuration.
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Hydronic radiant floors, cast-iron radiators, steam systems, slab heat, and some outdoor-reset boilers do not respond like a forced-air furnace. These systems can be very comfortable and efficient, but they often prefer steady operation with modest setbacks.
In a radiant slab, the concrete itself is part of the heating system. If you let it cool too much, it can take hours to bring the house back. In homes with large radiators or high thermal mass, a 3 to 5 degree setback may be more practical than 10 degrees. If the system has outdoor reset controls, ask the HVAC contractor how setbacks should be handled; some boilers are tuned to maintain lower water temperatures over longer cycles rather than fast recovery.
On our construction projects, this is also a design issue. If a homeowner wants lower operating costs and predictable recovery, we look beyond the thermostat. Attic air sealing, insulation depth, duct leakage, window performance, crawlspace conditions, and HVAC sizing determine how quickly the building loses heat and how evenly it recovers.
Smart Thermostats: Cost, Savings, and When They Pay Off
A smart thermostat will not fix a poorly insulated house, but it can make setbacks easier to use consistently. The biggest advantage is scheduling and recovery. You can lower the temperature while you are away, preheat before arrival, monitor the home remotely, and receive temperature alerts if something fails.
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For 2026 budgeting, professional smart thermostat installation commonly runs about $200 to $500, with HomeAdvisor reporting about a $350 average and a broader range from roughly $175 to $1,000 depending on wiring, device selection, access to the furnace or air handler, zoning, and repair scope. General thermostat replacement is often lower: HomeAdvisor reports about $114 to $264 for professional thermostat installation, with labor commonly $65 to $100 per hour, while Thumbtack reports about $125 to $315 average. Some big-box installation programs advertise thermostat replacement starting around $99, depending on location and scope.
Device-only costs vary widely. Basic manual thermostats can cost about $15 to $50. Programmable models often run $25 to $100. Smart thermostats commonly cost $80 to $300 or more, and premium multi-sensor systems can be higher. Angi cites smart thermostat device costs around $130 to $500.
Rank #3
- · High Compatibility: Forced air (gas, oil or electric), Electric furnace, Hot water steam or gravity radiant heat, Heat only systems, Heat pump w/o auxiliary or emergency heat, Millivolt, Gas fireplaces (24V), Floor or wall furnaces, Cool only systems.(TIP: Before purchasing, check to see if this thermostat is compatible with your system.)
- · Not Compatible: Heat pump with auxiliary or emergency heat, Dual fuel/hybrid heating, Electric baseboard heat (110-240 volts), Line voltage, Convectors, Radiant-ceiling heat, Mini split systems and 12V RV systems.
- · Easy to Install and Use: Large terminal blocks with universal sub-base, can be installed within 30 minutes, Large, clear, easy-to-read backlight LCD display and easy controls make for a user-friendly experience.
- · Factory Pre-set Energy-efficiency Program: 7-day, 5/1/1 easy-to-understand programming menus, flexible programming lets you sync your comfort with your schedule.
- · Reliability: Made by professional manufacturer and backed by over 20 years of experience, the customer service is 7*24 hrs available.
| Option | Typical 2026 cost | Best fit |
|---|---|---|
| Manual thermostat | $15 to $50 device only | Simple systems where someone reliably adjusts settings. |
| Programmable thermostat | $25 to $100 device only | Predictable schedules and conventional HVAC systems. |
| Smart thermostat | $80 to $300+ device only | Remote control, alerts, adaptive recovery, usage reports. |
| Professional thermostat replacement | About $114 to $315 typical | Basic swap with compatible wiring and accessible equipment. |
| Professional smart thermostat install | About $200 to $500 typical | C-wire needs, heat pumps, zoning, or setup-sensitive systems. |
Payback depends on behavior. ENERGY STAR estimates certified smart thermostats save about 8% of heating and cooling bills on average, roughly $50 per year for an average household. If you already manage setbacks carefully, the savings may be modest. If your house sits at 70 degrees F all day while everyone is gone, a smart thermostat can pay back more quickly, especially if utility rebates are available.
When to DIY vs When to Hire a Pro
Replacing a thermostat can be a reasonable DIY project if the system is simple, the wiring is clearly labeled, and you are comfortable turning off power to the HVAC equipment before touching anything. A basic low-voltage thermostat swap on a conventional furnace and air conditioner may take 30 to 90 minutes.
Hire a pro if the system has a heat pump, auxiliary heat, emergency heat, multiple stages, humidifier controls, ventilation controls, boiler wiring, radiant heat, zoning panels, or unlabeled wiring. Also hire a pro if there is no C-wire and the smart thermostat needs constant power. Some thermostats include a power adapter, but installing it at the furnace or air handler still requires correct control-board wiring.
Thermostat location also matters. If you are moving a thermostat from a hallway to a better interior wall, that may involve fishing new cable, patching drywall, avoiding exterior walls, and keeping the thermostat away from direct sun, supply registers, fireplaces, kitchens, and exterior doors. In some jurisdictions, moving control wiring or modifying HVAC controls may require a permit or licensed contractor. The permit rules vary by city and state, so check locally before changing wiring beyond a like-for-like replacement.
Construction Factors That Decide How Low Is Safe
Thermostat advice is only as good as the building around it. A house with good air sealing, adequate insulation, sealed ducts, conditioned crawlspace, and plumbing kept inside the thermal envelope can tolerate deeper setbacks more safely than a leaky house with pipes in cold areas.
Attic air sealing is often the first place we look. Warm air escaping through top plates, plumbing chases, recessed lights, attic hatches, and duct penetrations pulls cold air in at the lower levels. That makes floors colder, exterior walls colder, and crawlspaces more vulnerable. Sealing those bypasses before adding insulation usually performs better than insulation alone.
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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Ductwork is another common problem. If supply ducts leak into an attic or crawlspace, the heating system may run longer while still leaving rooms cold. If return ducts pull air from a crawlspace, basement, garage, or attic cavity, comfort and indoor air quality both suffer. Duct sealing is not glamorous, but it often changes how evenly a house heats during setbacks.
Crawlspaces deserve special attention. A vented crawlspace with uninsulated rim joists, air leaks, and water lines near the perimeter can be much colder than the rooms above it. Pipe insulation helps, but it does not replace air sealing and freeze protection. In higher-risk homes, we may recommend crawlspace encapsulation, insulated foundation walls, sealed vents where appropriate, a ground vapor barrier, and controlled drying or conditioning.
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Use this sequence before deciding how low to set the thermostat.
Rank #4
- Simple Manual Operation: Heagstat H705 1 Heat/1 Cool, 5-1-1Day Programmable Thermostat (Separate programs for the weekdays and weekends with 4 program periods per day including wake, leave, return and sleep). The user-friendly design is easy to operate for people of all ages
- System Compatibility: Works with conventional single-stage systems, including Forced air (gas, oil, or electric) & Ventilation & Air Conditioning. It supports up to 1 heating stage and 1 cooling stage. Please confirm your home HVAC system type before purchase to ensure full compatibility
- System Limitations: This unit does NOT work with multi-stage systems and heat pump systems (2H/1C, 2H/2C, 3H/2C, 4H/2C: Multi-Stage Heating & Cooling), PTAC units (Packaged Terminal Air Conditioners), 3-wire hydronic hot water heating systems, dual fuel/hybrid heating systems, 120-240V line voltage systems and electric baseboard heaters, mini-split heat pump air conditioners, and RV air conditioners (Mach/Roughneck series)
- No C-Wire Required Design: Dual power supply design runs on 24VAC hardwired power or 2 AAA batteries (batteries not included). Equipped with standard RH, RC, W, Y, G and C terminals. Wire Specs: Use 18-22 gauge thermostat wire. Shielded wire is not required. Easy DIY installation without professional help. It does not support W2, Y2, O/B, E, L, AUX, ACC+, ACC-, S, X and X2 terminals
- Clear & Easy-to-Read Display: Minimalist off-white body matches most home interior styles. The 4.5 sq inch backlit LCD screen delivers clear visibility under all lighting conditions. Compact dimension: 0.98 inches D x 4.72 inches W x 3.86 inches H, allowing flexible wall mounting
If you will be gone less than 3 hours: lower the thermostat 2 to 4 degrees F or leave it alone if comfort on return matters. Do not turn the heat off during freezing weather.
If you will be gone for a workday: use a 7 to 10 degree setback for conventional forced-air systems. If your occupied setting is 68 degrees F, try 60 to 62 degrees F for two weeks and compare comfort and runtime.
If you have a heat pump: start with a 2 to 4 degree setback and watch for auxiliary heat during recovery. If AUX heat runs often, reduce the setback or adjust thermostat settings.
If you will be gone overnight: try 60 to 62 degrees F in many conventional homes, but monitor window condensation, bedroom comfort, and any rooms with plumbing on exterior walls.
If you will be gone for several days in winter: set the thermostat around 55 to 60 degrees F, never off in freezing climates. Shut off and drain exterior hose bibs, open cabinet doors under vulnerable sinks, keep interior doors open, use leak or freeze sensors, and have someone check the house during severe cold.
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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →If the house has known weak points: be conservative. Exterior-wall plumbing, crawlspaces, garage-adjacent rooms, old windows, poor attic insulation, and drafty rim joists all argue for a higher setback temperature until the building is improved.
How to Test Your Own House Without Guessing
Pick a two- to four-week period with typical winter weather and make one change at a time. Set the occupied temperature, setback temperature, and schedule. Then watch three things: comfort, runtime, and problem signs.
Comfort is straightforward. Are the rooms you actually use recovering on time? Are bedrooms too cold? Are floors uncomfortable? Runtime data may be available from a smart thermostat, utility portal, or HVAC monitoring system. Problem signs include window condensation, musty odors, cold cabinets under sinks, unusually cold floors over crawlspaces, and auxiliary heat running longer than expected.
Do not judge the setting from one mild day. Watch how the house behaves during wind and during the coldest overnight stretch. Wind-driven air leakage can expose weak spots that are invisible during calm weather.
If you want a simple rule from the field: lower the thermostat enough to save energy, but not so low that the house becomes slow, damp, or risky. For many homes, that means 60 to 62 degrees F during normal absences and 55 to 60 degrees F for winter vacation freeze protection. The better the building envelope, the more predictable those setbacks become.
Best Value
- An Alexa thermostat - Amazon Smart Thermostat is an easy way to switch from a traditional thermostats for homes and help reduce energy usage.
- Create comfort zones throughout your home by connecting to select Alexa devices to automatically adjust heating and cooling based on temperature readings or presence detection.
- Save money and energy - After purchase, Amazon will send you an email with details about home thermostat rebates that may be available from energy providers in your area.
- Save energy - According to EPA estimates, ENERGY STAR certified thermostats save an average of $90 on yearly energy bills.
- Programmable thermostat and automatic control - Create your own home, away and sleep schedules, or have Alexa automatically control the temperature with Alexa+ advanced features.
Bottom Line
Turning the heat off when you are not home is usually the wrong winter move. The better approach is a controlled setback. Use about 68 degrees F when home and awake, 7 to 10 degrees lower for an 8-hour workday or overnight in many conventional systems, and about 55 to 60 degrees F for winter vacations where freezing is possible.
Heat pumps, radiant systems, older homes, humid homes, and houses with vulnerable plumbing need more conservative settings. A programmable or smart thermostat can help, but the real long-term improvement is a tighter, better-insulated, better-balanced house. That is where comfort, lower bills, and freeze protection start working together instead of fighting each other.
Frequently Asked Questions
Is it cheaper to turn the heat off or just lower the thermostat?
For most winter situations, lowering the thermostat is the better choice. A 7 to 10 degree setback for at least 8 hours can save up to about 10% annually, while keeping enough heat in the house to reduce freeze, humidity, and recovery problems.
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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteWhat temperature should I set my thermostat to when I am at work?
For many conventional forced-air homes, set it about 7 to 10 degrees below your occupied setting. If you keep the house at 68 degrees F, try 60 to 62 degrees F during the workday and adjust based on comfort, recovery time, and pipe risk.
What is the safest thermostat setting when leaving for vacation in winter?
In freezing climates, use about 55 to 60 degrees F rather than turning the heat off. Homes with crawlspaces, exterior-wall plumbing, poor insulation, or a history of frozen pipes should stay closer to 58 to 60 degrees F and use leak or freeze sensors.
Can turning the heat off cause pipes to freeze?
Yes. The thermostat may read above freezing while pipes in exterior walls, crawlspaces, garages, or cabinet cavities get much colder. Frozen pipe damage can cost far more than the energy saved by shutting the heat off.
Do thermostat setbacks work with heat pumps?
They can, but large setbacks may trigger electric auxiliary heat during recovery. Many heat pump homes do better with smaller 2 to 4 degree setbacks and a thermostat configured for heat-pump operation.
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How much money can a smart thermostat save in 2026?
ENERGY STAR estimates certified smart thermostats save about 8% of heating and cooling bills, roughly $50 per year for an average household. Actual savings depend on climate, fuel costs, insulation, HVAC type, and previous thermostat habits.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
