Which Requires Less Energy? AC Fan On or in Auto?

July 16, 2020

During the hot weather, operating your air conditioning can be your highest monthly electrical cost. So, it’s given that you’re seeking methods to save. That may involve finding an energy-efficient AC setting or even making the switch to an ENERGY STAR®-rated model with air conditioner installation.

Changing your air conditioning’s fan setting is another way you can spend less money.

Your air conditioner uses a fan to distribute the cold air it makes. You adjust this fan at your thermostat by switching it to “auto,” which means the fan will only be on when the air conditioner is running. Or you can adjust it to “on,” which signifies it will operate all the time.

Does putting your AC on “fan” save energy in Drexel Hill? Not always. Usually, using your air conditioner’s fan constantly is going to make your energy bill slightly higher.

But it also has a few advantages (and downsides) when it comes to your family’s comfort. Here’s why.

Air Conditioner Fan Set to “On”

Having your air conditioner’s fan go continuously can better stabilize your family’s comfort. This is ideal if you own a two-story house, since areas upstairs can be more hot. It’s also great if you have issues with unbalanced cooling because of hot and cold spaces.

It’s also advantageous if someone in your household has been diagnosed with allergies, asthma or other respiratory illnesses. That’s because the air is continuously being dispersed and filtered. On the other hand, you may have to install new air filters more often.

Having the fan on constantly can also make your energy bills more expensive. It could also result in the fan wearing out faster and need air conditioning repair.

Your home may also feel more moist. Air conditioning helps control humidity by removing wetness from the air. But if the fan is constantly working, it’s challenging for moisture to drain from the condenser outside.

Air Conditioner Fan Set to “Auto”

This is the most energy-efficient setting, as the fan will only run when your air conditioner does. It’s great if your residence always feels pleasant, no matter what room you’re in.

There are a few downsides to using the auto setting. You may experience hot and cold spots in your home and reduced air quality. This is because air isn’t always being distributed or being repeatedly purified.

On the other hand, you’ll require reduced energy and won’t need to replace your air filter as often. Both are savings that can tally up during the year, so you’ll have to think over what’s right for your needs.

If you’re experiencing home comfort problems during hot weather, O'Brien Heating & Air Conditioning can help. We sell a large range of energy-efficient air conditioners that can keep your house comfortable while also helping you save more on cooling expenses. Many are also compatible with the latest smart home technology, giving you the opportunity to monitor and adjust temp settings while on the go.

To learn more about how we can make your loved ones more pleasant, contact us at 610-257-7035 now.