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

July 16, 2020

During the hot weather, running your air conditioning can be your highest monthly utility expense. So, it’s normal that you’re seeking methods to use less energy. That can involve finding an energy-efficient AC setting or even upgrading to an ENERGY STAR®-rated model through air conditioner installation.

Adjusting your air conditioning’s fan setting is another way you can save money.

Your air conditioner uses a fan to distribute the chilled air it produces. You manage this fan at your thermostat by switching it to “auto,” which means the fan will only work when the air conditioner is cooling. Or you can switch it to “on,” which indicates it will work constantly.

Does putting your AC on “fan” save energy in St. Louis? This isn’t always the case. Usually, operating your air conditioner’s fan all day is going to make your energy bill slightly higher.

But it also offers a few pluses (and disadvantages) in relation to your home’s comfort. Here’s why.

Air Conditioner Fan Set to “On”

Having your air conditioner’s fan go all day can better stabilize your home’s comfort. This is great if you have a two-story home, since rooms upstairs can be hotter. It’s also good if you have difficulties with unbalanced cooling on account of hot and cold spaces.

It’s also beneficial if one of your family members has allergies, asthma or other respiratory problems. That’s since the air is constantly being circulated and filtered. However, you may have to change your air filters more frequently.

Having the fan on all day can also drive up your energy bills. It could also result in the fan wearing out prematurely and need air conditioning repair.

Your home may also appear more moist. Air conditioning helps balance humidity by clearing wetness from the air. But if the fan is constantly working, it’s more difficult for moisture to flow from the condenser outdoors.

Air Conditioner Fan Set to “Auto”

This is the highest energy-efficient setting, since the fan will only run when your air conditioner does. It’s good if your residence always seems the right temperature, whichever area you’re in.

There are a few drawbacks to using the auto setting. You might experience hot and cold spots in your residence and decreased air quality. This is due to the fact air isn’t continuously flowing or being continuously purified.

On the flip side, you’ll consume less energy and won’t need to replace your air filter as regularly. Both are savings that can build up throughout the year, so you’ll have to consider what’s ideal for your family.

If you’re experiencing home comfort problems during the summer, Morgner Inc. Air Conditioning & Heating can assist you. We sell a wide range of energy-efficient air conditioners that can keep your house more pleasant while also helping you save more on electrical bills. Many can be partnered with the latest smart home technology, allowing you to oversee and adjust temp settings while away.

To discover more about how we can make your house more comfy, contact us at 314-262-4541 now.