If everyone in your household is either at work or school, then turning the temperature to 78-80 degrees will save you a chunk of change when the energy bill arrives. The one consideration to keep in mind is if you have four-legged friends at home. If this is the case, a temperature setting in the 76-78 range is best.
Normal. 115-80=35 degrees cooler than outside temps. Pretty good for a standard residential AC. Lots of factors go into this though. Size of unit per square feet, age of unit, clean filters, recent maintenance on unit, insulation of house, etc.
In general, 80 degrees is too hot for a house if people are inside. However, if people aren't home during the day or for vacation during the summer, an indoor temperature of 80 degrees can save energy until you return and lower the temperature.
The average temperature that can help you save money is anywhere from 70 to 80 degrees Fahrenheit, giving your house just enough cooling to keep the hottest temperatures outside at bay.
If your thermostat is set at 80+ degrees, then the humidity inside of your home can easily get up above 70%. That's much higher than the recommended ideal indoor humidity of 30-50%. Having indoor humidity above 50% can cause serious issues for your health and your home.
But when the system has to cool your home by over 20 degrees, its capacity to do both diminishes. As a result, your AC system has to work harder and uses more energy to do so. It, in turn, will lead to faster wear and tear, which can drastically reduce its lifespan.
It's advisable to keep your home below 80 degrees throughout the summer. A house that's too warm can be dangerous to people, pets, and the soft surfaces in your home. Set the winter temperature to 68 degrees when you're awake and 62 degrees when you're sleeping.
What is the Best Thermostat Setting for Summer Air Conditioner Use? Energy Star recommends the following thermostat temperatures for your air conditioner in the summer: 78°F during the day if people are home. 82°F at night if people are home.
While ENERGY STAR suggests 82 degrees, that may be too uncomfortable for most families. Most people sleep better when their sleeping area is chilly, so that's why the National Sleep Foundation advises 60–67 degrees.
Leave Your Air Conditioner On
You might think you're saving money by turning your AC off when you step out of the house. However, a wave of heat and humidity can sneak into your home in the interim. Therefore, leaving your air conditioner on all day in hot temperatures is more energy efficient.
Most sleep specialists recommend people sleep in a “cool, dark and quiet environment,” typically ranging from about 65 to 75 degrees, said Ronald Chervin, the division chief of the sleep disorders centers and professor of sleep medicine at the University of Michigan, who was not involved in the study.
The Safest Temperature for Humans and Pets
Heat can be dangerous, so you don't want to let your home get too hot. The absolute highest you should set your thermostat is around 82 degrees Fahrenheit.
The recommended rule of thumb for summertime is to set the temperature to 78 degrees Fahrenheit when you're home and higher when you're away. In general, set it to 82 degrees Fahrenheit when you're asleep and 85 degrees Fahrenheit when you're away.
If it's 80 degrees outside, and your thermostat is set to 78 degrees, it shouldn't run as long as it would if it were set to 72 degrees. In either scenario, however, the unit should reach your desired temperature – typically within 15 or 20 minutes – and should cycle off for at least seven to 10 minutes.
For many of us, 70 degrees is the ideal indoor temperature, but when it is close to 100 degrees outside, your AC unit will be working quite hard to meet these expectations. Consider setting your thermostat at 75 degrees to 80 degrees in your home if the outside temperature is approaching triple digits.
Recommended AC Temperature for Sleeping
The Sleep Foundation says 65° is the best temperature for sleeping. However, if you prefer a slightly warmer or cooler room, that's okay, too. The recommended range is 60–68°, so there is some wiggle room.
The suggested temperature setting by Energy Star is 85 degrees when no one is home. However, if you live in a region of the country with consistently high humidity levels, consider setting the thermostat closer to 80 so your HVAC system doesn't run as frequently.
WHAT IS THE BEST MODE FOR AC IN SUMMER? In summer, the best mode for your air conditioner is the "Cool" mode, set to a comfortable temperature around 78°F when you're home. This setting efficiently reduces indoor humidity and maintains a comfortable environment without overworking the AC system.
What temperature is too hot for a house? Any temperature higher than 25.56 degrees Celsius or 78 degrees Fahrenheit is too hot for a house.
Here's the thing: It's normal for your AC to run continuously during hot summer months. You see, on extremely hot days—we're talkin' high 90s to 100s—your system needs to keep up with the incoming heat. To do that, it will run longer in order to maintain a constant, desired temperature in your home.
Cooling a house from 80 to 72 degrees is a common goal for many, especially during the peak of summer. On average, this process takes roughly two and a half to three and a half hours.
The average air conditioning temperature depends on a variety of factors, including geographic location, comfort levels, season, and cost of energy. 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.
You want to be comfortable, but also use an efficient temperature that doesn't potentially increase your energy costs. The best thermostat setting for summer is 78 degrees Fahrenheit when you're at home. Energy.gov also suggests raising your thermostat or turning it off entirely when you are away in the summer.
Setting the thermostat higher than the low 70s inevitably increases heat loss to the outdoors, raising heating bills substantially. Higher temperatures indoors can also decrease indoor humidity, which is often naturally low during winter. This unhealthy heat may further degrade indoor health and comfort.
Sleeping too hot
“Heat is a huge disruptor for REM sleep,” Dr. Drerup says. With the heat of the room, your body temperature will also rise, thus undoing the sleep initiation process entirely. If your bedroom temperature is above 70° F, it's too hot.