They recommend that when it's 90 degrees outside, you should try setting your air conditioning thermostat at 80 degrees or higher. And when it's 95 to 100 degrees outside (and higher), you should set your thermostat at 85 degrees or higher.
By setting your thermostat to no more than 20 degrees below the outside temperature, you can save on energy costs and help give your AC a break. The next time it's hot and muggy outside, appreciate that your AC is doing its best to keep you a comfortable 20 degrees cooler.
How cool should my house be if it's 100° outside? The majority of air conditioning units are designed to only cool the air about 20 degrees from the outside temperature. If the temperatures outside are approaching triple digits, you should set your thermostat at about 78°.
This is more of a personal question, as different people feel comfortable at different temperatures. Since 72 degrees is generally agreed upon to be an ideal indoor temperature, most people would probably still feel comfortable setting their AC units slightly higher than this, perhaps at around 75.
Any time you're awake and at home during the summer, the ideal thermostat temperature is 78 degrees. This home temperature for energy efficiency lowers your cooling bills by 12 percent compared to keeping it at 74 degrees. If you're afraid 78 degrees is too warm, remember to dress for the season.
Turning your AC to 69 degrees is getting relatively close to the “danger zone” for causing it to freeze up and break. Typically, we recommend keeping your thermostat set to no less than 68 degrees. Since 69 is above that temperature, it would most likely be safe.
Forget the low 70s, the coolest you should keep your residence is 78 degrees when you're at home. That's according to Energy Star, a federal program run by the Department of Energy and the Environmental Protection Agency.
Close windows, blinds, shades and curtains to keep heat outside. Light-colored window coverings also help reflect heat away. Close windows and window coverings in hot weather during the day to keep hot air out. Open windows at night or early morning to let cool air in.
HVAC systems are designed for an average temperature in your area. Your system is also designed to cool to a maximum of 20º below the temperature outside. So when we are having average temperatures, you should have no problem cooling to 70º or 71º if you like.
Air leaks and poor insulation are a common cause for making your house feel hot, even when the AC is working, as they can allow the air your air conditioner has worked so hard to cool to escape, leaving your house hot. Humidity can interfere with your thermostat's ability to track temperatures and also traps heat.
It turns out that the best indoor temperature for your home during the summer months is 78 degrees, according to the U.S. Department of Energy. If that temperature falls outside your comfort level, there are several ways to modify how your home feels without causing your energy bill to spike.
They recommend that when it's 90 degrees outside, you should try setting your air conditioning thermostat at 80 degrees or higher. And when it's 95 to 100 degrees outside (and higher), you should set your thermostat at 85 degrees or higher.
A residential AC can lower the indoor temperature a max of 20°F. The heat transfer capacity of an air conditioner can remove enough heat from a house to drop the temperature by 20°F. It can be set to do less, but it can't be made to do more.
Average Air Conditioning Temperature
Anywhere between 72° to 78°F is typically standard. A study in Texas revealed that the model temperature during summer months was between 70° and 75°F.
Yes, water on the roof will help cool it. Cooling with liquid water running off from a sprinkler is not efficient, but evaporative cooling from a small amount of water (like a periodic sprinkle) is very efficient. 1 gallon of water consumes 8000 BTU as it evaporates.
When the house has poor insulation, and warm air enters the room throughout the day, the walls, ceilings, and furniture absorb the heat. The structures and furniture release stored heat when the ambient temperature falls, causing the house to stay hot at night.
Depending on the season, the ideal house temperature for both comfort and efficiency is between 68 to 78 degrees Fahrenheit. In the summer, the recommended thermostat setting is 78 degrees F. In the winter, 68 degrees is recommended for energy savings.
Best House Temperature While Away: 55–80 degrees
In general, it's safe to increase indoor temperature up to 80 degrees in summer and decrease indoor air temperature to 55 degrees in winter, but there are exceptions - for example, if you live with a baby or an elderly or immune-compromised individual.
Here's Why. Recently, the federal government released new recommendations for energy efficiency. According to these federal guidelines, during the summer you should set your thermostat at 85F during the day when no one is home.
Set your thermostat to 68 degrees Fahrenheit in the winter
According to ENERGY STAR, setting your thermostat to 68 degrees Fahrenheit (20 degrees Celsius) when you're home is the ideal balance of comfort and energy efficiency.
Having your thermostat set too low can cause your air conditioner to run constantly, which can eventually drop the temperature of your evaporator coil to below freezing.
The best AC temperature for sleeping is generally between 60-67 degrees, according to sleep psychologist Michelle Drerup. As your body falls asleep, its temperature decreases slightly. So, setting your thermostat between 60-67 degrees helps this process, therefore helping you fall asleep faster and more comfortably.