What is the coldest temperature to set an air conditioner?

What temperature is too cold for air conditioning? As a general rule of thumb, HVAC manufacturers usually recommend that users don't operate units for prolonged periods of time if the temperature is below 16-18 degrees Celsius.

What is the lowest temperature I can set my 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.

Is 68 too low for AC?

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.

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.

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.

Best AC Setting For Cooling: Best Air Conditioner Temperature to Save Money, Set AC to Auto or On?

Is 60 degrees too cold to run air conditioner?

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. If you need to test your unit, then you should wait until the temperature has been above 60 degrees Fahrenheit for at least three days first.

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 64 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 75 degrees too cold 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 AC at 70 too cold?

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 65 to cold for AC?

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

What temperature should my AC be set at night?

Sleeping in a room with the air conditioner set to an appropriate temperature is important for quality sleep. The ideal AC temperature for sleeping is around 65°F (18.3°C). However, this may differ between individuals, who might find their ideal AC temperature lies between 60 and 67°F (15.6 and 19.4°C).

Is 69 degrees 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.

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.

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°.

Why set AC at 78?

Start by setting your air conditioner high

And, the best spot to do it at is 78 degrees Fahrenheit. According to Energy Star, it's an ideal temperature. 78 degrees keeps you fairly cool and comfortable during the day. It also shouldn't make your electric bill skyrocket.

Is 63 too low 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.

What number should I put my AC on?

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.

Should you lower AC at night?

Use Your AC's Fan Mode at Night

You can save on energy by switching your AC unit's operation from cool to fan mode before sleeping. This way, the air still circulates in the room but with less work from the air conditioner, since only the blower fan functions.

How do I stop my air conditioner from forming ice?

Can I turn my AC back on after it thaws?

' The fan will slowly defrost the system. Once your air conditioner is ice-free, you can turn it back on and reset the fan to auto (This may take an hour or more).

At what temperature does Freon freeze?

This substitution has the remarkable effect of lowering the boiling point by 120 degrees, At atmospheric pressure, Freon 12 boils at -21.66 degrees F and freezes at -311 degrees F.

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.

Is 62 too cold for AC?

Running AC Under 65 Degrees

While 60 degrees and below is a standard temperature that is too cold to run an air conditioner, running an AC unit at 65 degrees or cooler is also not recommended.

Is 68 degrees good for AC?

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.