Thermostat Operation The smaller the difference between the indoor and outdoor temperatures, the lower your overall cooling bill will be. You can easily save energy in the winter by setting the thermostat to around 68°F to 70°F while you're awake and setting it lower while you're asleep or away from home.
The Department of Energy suggests you turn your thermostat back 7 to 10 degrees from its normal setting for 8 hours a day, saying that can save as much as 10% a year on heating and cooling. Picard suggested a smaller change: Lower the temperature by just four degrees when you're away or asleep.
it is much more efficient to just leave it at the same temperature all day. My electric company was promoting having people install thermostats so they could do just that, so I tried it, and my bill went up almost 50%.
To save money, aim to have your temperature set around 68-72 degrees Fahrenheit when you're at home and awake. This is a comfortable temperature for most with the help of a light sweater. Overnight and when you're out, around 64 degrees Fahrenheit will keep your home at a good temperature.
Since the AUTO setting means the fan is only engaged when the system is on, rather than constantly blowing, AUTO is the most energy-efficient option between the two settings. This means you'll be using less energy and saving money on your electric bill by using the AUTO setting.
Keeping your thermostat in the AUTO position means less overall energy is being used—and that reduces your utility bills considerably. Not only that, your air filter will last longer than they will if you leave your fan running continuously—in other words, if you leave it in the “on” position.
Thermostat Operation
The smaller the difference between the indoor and outdoor temperatures, the lower your overall cooling bill will be. You can easily save energy in the winter by setting the thermostat to around 68°F to 70°F while you're awake and setting it lower while you're asleep or away from home.
Quick answer: The ideal house temperature is room temperature, which ranges from 68 to 78 degrees F, though this may vary from season to season. In winter, the average room temperature is generally 62 to 68 degrees, whereas in the summer, the average temperature is 72 to 78 degrees.
Finding the right AC temperature for your electricity bill is a balancing act. By setting it around 78°F and considering external factors, you can enjoy comfort and save on energy costs simultaneously. Remember, small adjustments can lead to significant savings over time.
The U.S. Department of Energy recommends 78° as the best temperature setting for your air conditioner during the daytime. And 82° for sleeping in the summer.
Don't set your thermostat too low
“You have to keep it really low to really get into a health concern," he said. "What you want to do is keep it at a reasonable temperature that's not chilly.” The World Health Organization recommends keeping indoor temperatures between 64 and 75 degrees for healthy people.
You don't have to shut it down altogether, but can set it to a low temperature like 58 or 60 degrees. The Department of Energy estimates households can save 10% on heating bills if the thermostat is dropped 7 to 10 degrees Fahrenheit for 8 hours a day, like when you're out of the house.
If the temperature is set to 74°F but the thermometer shows 78°F, you will have to recalibrate the thermostat to account for this 4-degree deviation. Even with older AC units or furnaces, you might have to recalibrate your thermostat from time to time.
Your room thermostat should be set to the lowest comfortable temperature, which for most is between 18°C and 21°C. If you only have a single room thermostat for the whole house, for every degree you increase the temperature, it will increase the heating bill by about 10%.
The World Health Organization recommends keeping indoor temperatures between 64 and 75 degrees Fahrenheit for healthy people. The minimum temperature should be kept above 68 degrees Fahrenheit to protect the very young, the elderly, or people with health problems. Watch out for signs of hypothermia.
Setting your air conditioning to 72°F is generally considered a comfortable indoor temperature for many people. It strikes a good balance between comfort and energy efficiency, making it a popular choice for residential settings.
A more moderate setting like 24°C (75.2°F) can achieve comfort with reduced electricity usage.
Set the thermostat as high as comfortably possible during hot weather. The less difference between the indoor and outdoor temperatures, the lower your cooling bill will be. Keep your house warmer when you aren't home during the day, but cooler when you come home at night.
Best AC Temperature Settings While You Are Home
As you consider the most comfortable room temperature for your lifestyle and family, keep in mind that for each degree that you set your thermostat above 72 degrees, you can save up to 3% on your energy bill.
“Anything under 68 degrees overall is ideal for sleep. If you get too hot in the middle of the night, reduce layers of clothing or sheets, turn on fans, or drink a little cold water.”
The World Health Organization recommends a thermostat setting no lower than 68 degrees while you're home. If you have children or seniors in your house, that number increases to at least 70 degrees. If your house is too cold, it can cause problems with blood pressure and circulation, as well as affect your heart rate.
Set your thermostat to 78 degrees.
According to the Edison Electric Institute, raising your thermostat by just one degree in the summer will decrease your electric bill by 2 percent. So, when it's in the triple digits outside, setting your thermostat to 78 degrees offers a respite from the heat.
Setting your thermostat too high in the winter and too low in the summer can cause your energy bill to increase by as much as 10 percent or more. Consider keeping your HVAC system's thermostat at a constant temperature, recommended at 68 degrees in the winter and 78 degrees in the summer.