What should cool setting be on thermostat?

Author: Kane Smitham  |  Last update: Sunday, March 23, 2025

Cool mode is primarily used to avoid overheating in the summer, fall, and spring. People can pick all sorts of temperature settings, with most preferring something ranging from 65 to 75 degrees. In addition to cooling the home, Cool mode also helps to dehumidify the house.

Should thermostat mode be on auto or cool?

Choose "AUTO" for energy savings and "ON" if you want constant air circulation or improved air filtration. Temperatures can soar or plummet depending on the time of year. Throughout the year, it is important to have reliable heating and cooling systems in order to keep your home supplied with cool or warm air.

Is 72 too cold for AC?

While the standard room temperature of 72 degrees Fahrenheit is commonly favored by many, others argue for higher settings, particularly when it's hotter outside.

What is the cool setting on a thermostat?

These are the cool function and the heat function. As you've likely guessed, the cool setting is for air conditioning, and the heat setting is for warming up your home. While these settings are fairly straightforward, it's important that you understand where they are on your thermostat.

Is 74 a good temperature for air conditioning?

The ideal temperature for cooling efficiency and energy savings is typically around 24-26 degrees Celsius (75-78 degrees Fahrenheit). This range strikes a balance between keeping you cool and minimizing energy consumption.

What is the ideal temperature for your home? The Answer Might Surprise You!

Is 75 too cool for AC?

Most people work better and are more productive when with a temperature setting in the 72–74-degree range. This setting is low enough to keep the house cool and dry and keep you and the kids awake during the afternoon hours.

How cool should my house be if it's 100 outside?

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.

What is the best setting for cooling?

Set the thermostat at the highest most comfortable level.

A comfortable room temperature setting is about 24 or 25 degrees Celsius. Setting your thermostat at a colder setting than normal when turning your unit on will not help cool your room any faster.

What should your thermostat be set at in the summer?

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.

What mode should I keep my AC on?

Eco or energy-saving mode

This is the ideal mode for users looking to save up on energy bills by toning down the performance of the AC and its compressor. Eco-mode uses less electricity by automatically adjusting the fan speed and temperature, while still maintaining a comfortable level of cooling.

Why is my AC set to 74 but reads 78?

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.

What should I set my AC to in summer?

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.

Should AC be on auto or on?

There are benefits to having your air conditioner set to “auto” and “on.” The benefits of the “auto” setting include higher efficiency, lower energy bills, better humidity control, less wear and tear on some components, and quieter running.

Should my thermostat say cool on?

The blinking 'Cool On' message can indicate one of two things: the compressor protection feature or a startup delay after power loss. Both are normal safety features built into modern thermostats to ensure they provide the best service possible while protecting your HVAC system from potential damage.

Should I use cool or auto in AC?

Auto mode is similar to cool mode as the AC unit will work to cool the air down. However, unlike cool mode, once the room reaches the set temperature, both the compressor and fan switch off. This mode is another ideal mode for saving energy and money as once everything is switched off no electricity is used.

Why is AC not blowing cold air?

First, check your filters and coils for dirt and debris that may be impeding airflow. Once you've cleaned the filters and coils, run the air conditioner with just the fan so that the ice accumulation can melt off. If the AC still doesn't blow cold air, it could be that refrigerant levels are too low.

Does keeping the AC at 72 save money?

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.

Is 68 too cold for AC?

IS 68 TOO COLD FOR AC? Setting your AC to 68°F might feel too cold for some, especially in residential settings, as it is lower than the typical comfort range. However, preferences vary, and this temperature might be suitable for those who prefer cooler environments.

What is the coldest you should set your thermostat?

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.

Which mode is best for cooling?

To select the best mode for optimal cooling, consider the room's current conditions. Use cool mode for hot temperatures, dry mode for humid environments, and eco mode to save energy while maintaining moderate cooling. For quick cooling, opt for turbo mode, and use sleep mode at night for comfort and efficiency.

What is cool setting on thermostat?

Cool. Cool is the other essential thermostat setting. It works similar to heat, but instead of running the heater, this mode runs the air conditioner. The Cool mode lets you pick your preferred maximum temperature. When the house is cooler than this temperature, the air conditioner will turn off.

How cool should my house be if it's 110 outside in summer?

Just because the outdoor temperature is above 100, the Ideal temperature to set your AC unit to doesn't change — it's 78 degrees. Higher temperatures in the home are to be expected when the weather is hotter than usual, but your thermostat can still be set the same as if it were a lower temperature outside.

How long should it take to cool a house from 90 to 72?

Cooling a house from 90 degrees to 72 degrees typically takes about 2 to 4 hours, depending on various factors.

What temperature do most people keep their house at in the summer?

The average summer temperature is around 71°F. In winter, this falls just a touch to 70°F. Here's a winter breakdown for thermostat settings across the U.S., according to the survey participants: 47% set it between 68°F and 71°F.

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