What is the lowest you should run your AC?

What's the 20-Degree Rule? In short, the 20-degree rule of air conditioning states that you should always keep your AC unit at no more than 20 degrees lower than the outside temperature. It means that, if the outdoor conditions are at 95 degrees, you should set your thermostat at no less than 75 degrees.

Is it bad to run AC on lowest temp?

In most cases, especially in residential applications, you should not run your air conditioner when outdoor temperatures are below 60 degrees. The air conditioner does function, but you are going to burn out the compressor fairly quickly.

Is 72 degrees too low for AC?

When setting your thermostat, most homeowners find 72 is a good temperature for air conditioning. However, you may need to adjust that setting based on weather conditions. The bigger the difference between indoor and outdoor temperatures, the higher your energy bill will be.

Can I run my AC below 70?

Do not set your thermostat below 70 degrees as it will not cool any faster and could freeze up the system causing more problems. Understand that there is generally a 20 degree difference between indoor air and outside temperatures.

Is 68 too cold for air conditioning?

According to the DOE, the ideal home temperature during winter weather is 68 degrees Fahrenheit. In comparison, the ideal air conditioner temperature during the summer months is 78 degrees Fahrenheit.

Is A Bigger Air Conditioner Better For My House?

Is 62 too cold for AC?

HVAC manufacturers typically advise users not to run their units for extended periods if the temperature is below 65 degrees Fahrenheit. If you need to test your unit, you should do so after the weather has been risen to 60 degrees Fahrenheit for at least three days.

Is 63 too cold for AC?

What Temperature is Too Cold for Air Conditioners? HVAC manufacturers usually recommend that users do not operate their units for prolonged periods of time if the temperature is lower than 65 degrees Fahrenheit.

Is it OK to set AC at 65?

Generally, most AC units will do well with a thermostat set somewhere between 65 and 80 degrees. However, it might take a bit of time to find your system's best temperature.

How Low Can AC go without freezing?

Don't lower the thermostat below 72°F

The higher altitude creates a different situation for an air conditioner so that it's easier for the evaporator coil to freeze over. At sea level, it's unlikely for an AC to suffer coil-freeze just because of a low thermostat setting.

Is 75 too low for AC?

Typically, our bodies are most comfortable when the air inside our home is 74-76 degrees. So, a safe setting is 75 degrees. However, this is only necessary when you're in your home.

Is 71 too cold for AC?

It's best to not set your thermostat lower than 70 to 72 degrees. Most units are not designed to cool a house below that point, and you risk the system freezing up. I recommend trying to keep your house below 80 degrees at all times during the summer.

What should AC be set at in summer?

You want to be comfortable this summer without spending a lot of money on air conditioning, right? While you ultimately must decide what temperature you feel comfortable at, the US Department of Energy and Energy Star suggest that the best AC temperature is 78°F for summer days.

Is 60 too cold for AC?

Air conditioners are not designed to operate in or produce temperatures below 60 degrees. Truth be told, they're happiest around the 68 degree mark. Most thermostats simply won't allow you to choose a setting below this mark.

What is the healthiest AC temperature?

According to the Department of Energy¹, 78° Fahrenheit is the sweet spot for air conditioners to balance energy savings and comfort when people are at home and need cooling.

Is 50 too cold for AC?

It's advisable to turn on your AC if the temperature is about 59 degrees Fahrenheit or higher. This way, the oil that lubricates the parts of the AC will warm up before running through the equipment. Also, this practice will ensure there's no ice inside your condenser before you turn it on.

What temp is cheapest for AC?

Energy Saver recommends setting your air conditioner to 78 degrees when you wake up, 85 degrees during the day, and 82 degrees when you're sleeping to save the most money. Kureczka suggests bumping the temperature up to the highest setting you're comfortable with.

Can AC freeze if it runs too long?

If your thermostat is malfunctioning, it may be working your air conditioner too hard. As your unit runs too long, it's easy for the AC coils to freeze.

What is the lowest I should set my thermostat?

How Low is Too Low to Set My Thermostat? If you're going to be leaving your home or traveling for the winter, it's best to keep your thermostat set no lower than 55 degrees. If you don't, you could risk having your pipes freeze over.

At what temperature will your AC freeze up?

Air conditioners are designed to be run in a specific temperature range. If the air outside is below 62 degrees then the pressure inside the air conditioner will drop, causing an air conditioner to freeze up.

How cool should my house be if its 90 outside?

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.

Is AC at 66 too cold?

The lower limit

Even when the temperature outside isn't at heatwave levels, we recommend you don't lower the AC's setting below 68°F. This temperature is already more than cool enough for most people, and many will find it too cold.

How low can you set AC in summer?

The DOE Has Declared the Best AC Temperature for Summer

According to the DOE, the best AC setting for summer is 78 degrees. Once you go lower than 78 degrees, you run the risk of increasing your energy bill by about 4-6% per degree.

What temperature is too hot for AC?

Most air conditioning systems are designed to function with outside temperatures of 100 degrees or less. When temperatures outside become higher than 100 degrees Fahrenheit, the air conditioning system can consume more energy and begin to malfunction or fail.

What temperature is too hot for a house?

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. However, it is worth noting that people living in naturally hotter climates lead normal lives despite the elevated temperatures.

Is 72 a good temperature for air conditioning at night?

The commonly recommended AC setting for summer is 78 degrees. However, some people would have a hard time sleeping at that temperature. They sleep sounder in a cooler bedroom. If you have trouble sleeping at higher temperatures, try setting your temperature to 72 degrees or even a bit lower.