Can I keep my AC at 65?

Generally, most AC units will do well with a thermostat set somewhere between 65 and 80 degrees.


What's the lowest an AC can go?

Most air conditioners have minimum thermostat settings at around 60 degrees. Most manufacturers simply assume you won't turn the air conditioner on if the temperature outdoors is 60 degrees. Some older units don't have anything physically stopping you from turning the air conditioner on at this point, though.

Is 67 too cold for AC?

Setting the thermostat at a very low temperature is not good for your air conditioner. Setting your temperature at around, 60-67 degrees, prevents less heat exchange through the evaporator coil, meaning that there isn't enough warm passing through your evaporator to effectively keep it from freezing.


Can I run my air conditioner at 60 degrees?

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 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.


What Temperature Should I Keep it in My Home This Summer in 2019?



How low can you set your AC before it freezes?

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 65 degrees too cold?

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.

Can I run my AC at 68 degrees?

Finding Your Ideal Temperature

The ultimate answer to, “How cold is too cold?” may be 68 degrees, but to maintain home comfort without wasting energy, keep your thermostat between 72 and 78 degrees. If you're comfortable at 78, then try bumping it up to 79 … and then 80.


Is it OK to set AC to 70?

If you want to feel good, as in comfortable, many people will want to lower their thermostat to the low 70s in summer. But if you're talking about saving money on energy and limiting your environmental impact, 70 degrees Fahrenheit is a very bad temperature for your AC to reach.

Is 69 too cold for AC?

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.

Is it cheaper to run AC on low?

For most homeowners, the best compromise is turning their thermostat up instead of shutting it off completely. When you leave for work, turn your thermostat to somewhere between 75 and 85 degrees. This makes your AC run far less, so you still save money.


How cool should my house be if it's 110 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°.

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.

What is the best AC temp to save money?

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 68 too cold for house summer?

Best temperature to set your thermostat in summer

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.

Is 68 too cold for house?

Average House Temperature in Winter

The Department of Energy recommends a winter heat setting of 68 °F (20 °C), which matches up very well with the temperatures most of us are comfortable with.

Is 65 a good temp for house?

The ideal thermostat temperature in the winter is 68 degrees Fahrenheit when you're at home. Energy.gov suggests that 68 degrees is a good room temperature while you're awake at home but recommends lowering it while you're asleep or away.


Can 65 degrees cause hypothermia?

Even mildly cool homes with temperatures from 60 to 65 degrees F can lead to hypothermia in older adults.

Will an AC freeze up if it runs too long?

If the thermostat malfunctions and detects the wrong temperature, this can cause your A/C to run too hard for long periods of time. If your A/C runs for too long it can cause the coils to freeze.

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.


Is 72 too cold 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.

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.


Should you give your AC a break?

It's not too great for the environment, either, and you could quickly wear down your air conditioner and require a replacement before you know it. From time to time, it's important to give your air conditioner a break. Let the components have a rest so that you can keep your equipment longer.