What Temperature to Set Thermostat for Big Savings
- shawncovenantaire
- Sep 17
- 13 min read
When you're trying to figure out the perfect temperature for your thermostat, it always comes down to a balancing act between comfort and cost. Generally speaking, we've found the sweet spot for most homes is around 68°F (20°C) in the winter and 78°F (26°C) in the summer, at least while you're home and moving around.
These temperatures usually keep things comfortable without making you cringe when you see your energy bill.
Your Quick Guide to Ideal Thermostat Settings
Finding that "just right" temperature can feel like a constant tug-of-war between your comfort and your wallet. The good news is, a few simple guidelines can completely take the guesswork out of it. By making small, smart adjustments, you can see some serious savings on your heating and cooling costs all year long.
Energy efficiency experts have been debating the "perfect" thermostat temperature for decades. Historically, the go-to range for heating has been between 68°F and 72°F, while cooling recommendations hovered around 77°F to 81°F. But with today's technology, we have so much more control. If you're interested in the tech's evolution, Grand View Research has some interesting data on the thermostat market's growth.
A Simple Rule for Every Season
Here's the real secret to efficiency: adjust the temperature when you're away or asleep. There’s simply no reason to keep an empty house at the same temperature you would if you were lounging on the couch. This one habit is the absolute foundation of smart energy use.
A smart approach to your thermostat isn't about sacrificing comfort; it's about being efficient when comfort matters less, like when you're asleep or away. This small change can lead to big savings over time.
This chart breaks down the recommended baseline temperatures for winter and summer and shows you the kind of savings you can expect.
As you can see, that 10-degree difference between your summer and winter settings can lead to an average of 15% in annual savings. The most effective way to lock in these savings is to automate it. For a full walkthrough, check out our guide on how to program your thermostat for easy money-saving tips. By setting a schedule, you ensure your HVAC system is always working smarter, not harder.
Recommended Thermostat Settings at a Glance
To make things even easier, here is a quick cheat sheet with our top temperature recommendations. Think of these as a starting point; you can always tweak them a degree or two to match your personal comfort level.
Scenario | Recommended Temperature (Fahrenheit) | Recommended Temperature (Celsius) |
|---|---|---|
Winter (Home) | 68°F | 20°C |
Winter (Away/Sleeping) | 60-65°F | 16-18°C |
Summer (Home) | 78°F | 26°C |
Summer (Away/Sleeping) | 82-85°F | 28-29°C |
Using this simple table as your guide ensures you’re not just comfortable, but also making an energy-conscious choice every day. It's the easiest way to stay on top of your energy usage without constantly fiddling with the thermostat.
Mastering Your Thermostat for Winter Warmth
When the cold weather rolls in, your thermostat suddenly becomes the command center for your entire home. The big question is always what temperature to set it to. You want to be warm, of course, but you don't want that jaw-dropping energy bill that can come with it. The real secret is finding that sweet spot: a balance that keeps you cozy without making your furnace work overtime.
For most of us, the ideal temperature for winter days when you're home is right around 68°F (20°C). This setting is the perfect middle ground for comfort and energy consciousness. It’s warm enough that you can relax without bundling up in extra layers, but it’s also low enough to keep your heating system from running nonstop.
The Power of a Setback Temperature
To really unlock some serious savings, you need to think beyond just one single temperature. This is where the simple but powerful strategy of a "setback temperature" comes into play. All it means is that you intentionally lower the thermostat when you don't need the house to be quite as warm.
The two best times to do this are when everyone is out of the house or when you're all tucked in for the night. It just doesn't make sense to keep an empty house toasty warm, and when you're already bundled under blankets, you won't notice the difference. Think of it this way: you put on a warm blanket at night, so you can give your furnace a bit of a break, too.
For the best results, try dropping the thermostat by 7 to 10 degrees during these off-peak times. So, if you keep it at 68°F while you're home and active, setting it back to around 60°F overnight or while you're at work can make a huge dent in your heating costs.
By consistently using a setback temperature for at least eight hours a day, you can slash your annual heating expenses by up to 10%. It’s a small habit that adds up to a big difference over a long, chilly winter.
Debunking a Common Heating Myth
There's a persistent myth that it takes more energy to reheat a cold house than it does to just maintain one steady temperature all day. It sounds logical on the surface, but for the vast majority of modern homes and HVAC systems, it's just not true.
Your furnace doesn't actually work "harder" to bring the temperature back up; it just runs for a longer, continuous stretch. But here's the key: the energy you save during the several hours the house was kept at a lower temperature far outweighs the energy used for that reheat cycle. The longer your home stays at that lower setback temperature, the more energy you ultimately save.
This strategy is just one of many smart ways to get a handle on your home's energy use. For even more expert advice, check out our in-depth guide covering real strategies that cut costs on your heating bill. By embracing a simple setback schedule, you can keep your home comfortable when it matters and save money when it doesn't.
Smart Thermostat Settings to Beat the Summer Heat
When the summer temperatures start to sizzle, your air conditioner kicks into high gear, and your energy bills can skyrocket right along with the heat. Nailing down the right thermostat temperature during these hotter months is the secret to staying cool without breaking the bank. It's all about striking that perfect balance between a comfortable home and an efficient one.
So, what's the magic number? The U.S. Department of Energy suggests setting your thermostat to 78°F (26°C) when you're home and need cooling. This temperature is widely seen as the sweet spot for saving energy while keeping most people comfortable during the day. Keeping it here helps prevent your AC from running non-stop, which is one of the biggest culprits behind high electricity bills.
Using a "Setup" Temperature for Maximum Savings
You've probably heard of a "setback" temperature for winter, where you let the house get cooler at night. The summer equivalent is a "setup" temperature", which just means you let your home get warmer when you're not there. After all, there's no point in keeping an empty house perfectly chilled, and this one simple adjustment can lead to some serious savings on your cooling costs.
When you head out for the day or go to bed, try bumping the thermostat up a few degrees. A setting between 82°F and 85°F (28-29°C) is a great target. This setup strategy cuts down on AC use during hours when you won't even notice the difference, which eases the strain on both your system and your wallet.
Think of it like this: for every degree you raise your thermostat above 78°F for an 8-hour period, you can save up to 1-3% on your cooling costs. Over a whole summer, those small, daily tweaks really add up.
This works because your air conditioner isn't fighting a losing battle against the day's peak heat when nobody's home to enjoy the cool air. It's a straightforward, effective way to get a handle on your energy use.
Enhancing Cooling with Simple Tricks
Your thermostat is your main weapon in the fight against heat, but you can back it up with a few other tricks to feel even cooler. One of the best is also one of the simplest: use your ceiling fans.
A ceiling fan creates a wind-chill effect, making the air feel cooler on your skin than the actual room temperature. This simple trick allows you to comfortably raise your thermostat by as much as 4°F without feeling any less comfortable. Just remember that fans cool people, not rooms, so make sure to turn them off when you leave to save a little extra electricity.
Making these adjustments is a breeze with today's technology. You can learn more about the convenience and savings by exploring the unmissable benefits of smart thermostats in 2025. These devices can automate your setup schedules, making energy efficiency completely effortless. By pairing a smart thermostat with these temperature strategies, you can beat the heat and keep your summer energy bills refreshingly low.
Personalizing Your Settings for Perfect Comfort
While we can talk about ideal temperatures like 68°F in winter and 78°F in summer all day, those numbers are really just a starting point. They're a solid baseline, but they definitely aren't a universal rule. The truly perfect temperature setting is going to depend entirely on you, your family, and your home.
Every household is a little different, so your ideal temperature will be, too. Things like your personal preference, any health conditions, and even how active you are during the day play a huge role in what feels comfortable. What works for your neighbor might feel like an oven or an icebox to you.
Adjusting for Occupants and Health
The age and health of everyone living in your home are absolutely critical factors. The very young and the elderly often need different temperature settings to stay comfortable and safe because their bodies are just more sensitive to temperature swings.
Infants: Babies, especially newborns, can't regulate their own body temperature nearly as well as adults. It's often recommended to keep their room slightly warmer and, more importantly, consistent.
Elderly Family Members: Older adults can also be much more sensitive to the cold. Keeping the house just a degree or two warmer during the winter can make a world of difference for their well-being.
Health Conditions: Some medical conditions make people extra sensitive to heat or cold. It's always best to adjust your thermostat to accommodate those specific needs first and foremost.
Customizing your thermostat setting isn't just about comfort; it's a key part of creating a healthy and safe living environment for everyone under your roof, especially the most vulnerable members of your family.
This kind of personalization is what turns your HVAC system from a simple utility into a tool that serves the real needs of your household.
Understanding Your Home’s Unique Personality
Just like people, every house has its own quirks and personality, which directly affects how it holds onto heat or cool air. The way your home was built and where it's located are just as important as the people living inside it. You have to consider these details to really nail down the perfect temperature setting.
Several key characteristics will shape your heating and cooling needs:
Insulation Quality: A well-insulated house acts like a good thermos, keeping the warm air in during winter and the cool air in during summer. A home with poor insulation means your HVAC system has to run constantly just to keep up.
Window Efficiency: Older, single-pane windows are a massive source of energy loss. Modern, energy-efficient windows do a much better job of maintaining a stable indoor temperature.
Sunlight Exposure: Does your house have huge, south-facing windows that get blasted by the sun all afternoon? You'll have a completely different cooling strategy than someone whose home is shaded by big trees.
Regional Climate: A house in a dry, desert climate has completely different cooling needs than one in a humid, coastal region. Humidity is a game-changer; it can make the air feel much warmer, forcing you to use different thermostat and fan settings to feel comfortable.
Using Smart Thermostats to Automate Savings
Tired of constantly fiddling with the thermostat dial? Modern technology offers a much better way to manage your home's temperature, taking the daily guesswork completely out of the equation. Programmable and smart thermostats are your best allies in the fight for energy savings, moving beyond manual adjustments to create a home that’s consistently efficient.
These gadgets automate the whole process, making sure you’re never pouring money into heating or cooling an empty house again.
So what’s the difference? A programmable thermostat is pretty straightforward: it follows a set schedule you create, changing the temperature at specific times of the day. A true smart thermostat, however, is a game-changer. It actually learns your habits over time and builds a custom schedule for you.
This shift toward automation isn't just a niche trend. The global thermostat market is booming, projected to fly past $6 billion by 2025, largely thanks to the rise of the smart home.
Leveraging Advanced Smart Features
Smart thermostats are packed with powerful features designed to maximize both your comfort and your savings. Most connect to your Wi-Fi, which means you can tweak the temperature from your phone, whether you're on the couch or halfway across the country.
One of the coolest tools they offer is geofencing. This feature uses your phone’s location to automatically dial back the temperature when you leave home and then start warming things up or cooling them down just before you get back. It's a completely hands-off way to guarantee your HVAC system only runs when it's actually needed.
Smart thermostats aren't just about remote control; they are about intelligent automation. They learn your routine, analyze usage, and make micro-adjustments that can lead to substantial long-term savings on your energy bills.
Understanding Your Energy Usage
Another huge advantage is the access you get to detailed energy reports. These insights break down exactly how much energy your HVAC system is using and when, empowering you to spot patterns and make smarter choices about your settings.
Some of the most useful features you'll find include:
Detailed Usage History: See an hour-by-hour look at your heating and cooling activity.
Monthly Savings Reports: Track how your tweaks are actually impacting your energy consumption and costs.
System Alerts: Get handy notifications for maintenance reminders or if the system detects a potential issue with your HVAC unit.
To really get the most out of your device, think about folding it into a bigger plan for smart home energy management. When you combine intelligent scheduling with data-driven insights, you can take full control of your home's comfort and efficiency like never before.
Simple HVAC Tips to Boost Your Efficiency
Figuring out the perfect thermostat setting is a great start, but it's really just one piece of a much bigger puzzle. To truly get a handle on your energy bills, you need to make sure your entire HVAC system is running as efficiently as possible. A few simple maintenance tasks and home improvements can make a world of difference, ensuring your thermostat isn't fighting an uphill battle.
Think of it this way: a perfectly set thermostat in a leaky, inefficient house is like trying to fill a bucket full of holes. You're just pouring energy (and money) right out. A few straightforward actions can plug those holes, helping your system maintain a comfortable temperature with far less effort.
Start with the Basics: Clean Airflow
One of the easiest yet most impactful things you can do is change your HVAC system's air filter regularly. A clogged filter literally chokes the airflow, forcing your furnace or air conditioner to work much harder just to push air through. This extra strain doesn't just waste energy; it can lead to expensive repairs down the road.
Make it a habit to check your filter every month and plan on replacing it at least every 90 days. If you have pets or family members with allergies, you'll probably want to swap it out more frequently, maybe every 45 to 60 days.
Seal Up Those Energy Leaks
You'd be surprised how much heated or cooled air escapes through tiny gaps and cracks around your windows and doors. These little leaks are major sources of energy loss, forcing your system to run longer to make up for the constant temperature swings. Sealing these drafts is a simple fix with a powerful payoff.
A well-sealed home is like a better thermos; it holds the conditioned air inside, dramatically reducing the workload on your HVAC system. In fact, studies show that effective air sealing and proper insulation can save homeowners up to 15% on their heating and cooling costs.
Finding and sealing these problem spots is a fantastic weekend project. If you need a hand getting started, check out our guide on how to find air leaks and save money by sealing your home. It gives you a clear, step-by-step walkthrough to hunt down and fix these common energy wasters.
And once you've optimized your thermostat settings, don't stop there! Exploring other ways to cut back on electricity can make an even bigger dent in your utility bills. You can find more smart tips for saving electricity at home to build on your efforts.
Finally, don't forget these other quick wins:
Check Your Attic Insulation: Make sure your attic is properly insulated. This acts as a barrier, preventing heat from escaping in the winter or creeping in during the summer.
Use Blinds and Curtains Strategically: On hot, sunny days, close your blinds to block out the sun's heat. In the winter, open them up to let that free solar warmth in.
Put Your Ceiling Fans to Work: Fans are great for circulating air, which can make a room feel several degrees cooler. This little trick lets you nudge the thermostat up without sacrificing comfort.
Frequently Asked Questions About Thermostat Settings
Even with the best advice, some specific questions always seem to pop up when you're trying to nail down the perfect thermostat setting. Let's walk through some of the most common puzzles and myths to help you manage your home's climate with total confidence. Getting these answers right can stop simple mistakes that just waste energy.
A classic question we hear all the time is, "Will cranking the thermostat way down cool the house faster?" This is a total myth. Your AC unit runs at one speed: full blast. Setting it to 50°F won't chill the room any quicker than setting it to a reasonable 75°F. It just tricks the system into running for a much, much longer time, burning through a ton of electricity in the process.
Common Thermostat Puzzles Answered
Another common dilemma is whether it's better to turn the AC off completely when you leave or just dial the temperature up. For almost every home, it's far more efficient to simply set the temperature higher, maybe to around 85°F, instead of shutting it off entirely. This simple step prevents your system from having to go into overdrive to cool down a scorching hot house when you get back. You can find more details about what causes high electricity bills and how to fix them in our related guide.
Where you put your thermostat really matters. It should always be on an interior wall, far away from direct sunlight, drafty windows, and heat sources like lamps or kitchen appliances. This ensures it gets an accurate reading of your home's true average temperature.
Finally, here are a few quick answers to other common questions we get:
Is it better to leave the AC on all day? It's definitely better to raise the temperature when you're away than to shut the system off. This approach strikes the perfect balance between saving energy and coming home to a comfortable house.
Does turning the thermostat way up heat the house faster? Nope, just like with the AC, your furnace works at a steady pace. Setting it higher only forces it to run longer, not harder or faster.
At Covenant Aire Solutions, our certified technicians are ready to help you optimize your home for both comfort and efficiency. From smart thermostat installations to full HVAC maintenance, we make sure your system runs perfectly. Contact us today to schedule a consultation.
