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

July 16, 2020

During the high temperatures, running your air conditioning can be your highest monthly electricity cost. So, it’s normal that you’re checking for methods to use less energy. That can involve trying an energy-efficient AC setting or even upgrading to an ENERGY STAR®-rated model with air conditioner installation.

Modifying your air conditioning’s fan setting is an additional way you can save money.

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

Does putting your AC on “fan” save energy in Laurel? Not always. Generally, using your air conditioner’s fan all day is going to increase your energy bill slightly.

But it also gives a few perks (and drawbacks) as far as your home’s comfort. Here’s why.

Air Conditioner Fan Set to “On”

Having your air conditioner’s fan run continuously can better equalize your house’s comfort. This is great if you own a two-story residence, since spaces upstairs can be hotter. It’s also ideal if you have issues with uneven cooling on account of hot and cold spaces.

It’s also advantageous if one of your family members deals with allergies, asthma or other respiratory illnesses. That’s since the air is constantly being circulated and filtrated. On the other hand, you may have to put in new air filters more regularly.

Having the fan on all day can also make your energy bills more expensive. It could also make the fan wear out prematurely and need air conditioning repair.

Your residence may also feel more humid. Air conditioning helps control humidity by removing moisture from the air. But if the fan is constantly working, it’s challenging for moisture to drip from the condenser externally.

Air Conditioner Fan Set to “Auto”

This is the highest energy-efficient setting, as the fan will only operate when your air conditioner does. It’s great if your residence always appears cool, no matter what area you’re in.

There are a few drawbacks to using the auto setting. You could have hot and cold locations in your residence and reduced air quality. This is since air isn’t always moving or being repeatedly filtrated.

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

If you’re having home comfort issues during the summer, H&C Heating and Cooling can support you. We offer a large range of energy-efficient air conditioners that can keep your residence comfier while also helping you save more on energy costs. Many are also compatible with the latest smart home technology, allowing you to check and change home comfort settings while away.

To learn more about how we can make your family more comfortable, contact us at 301-960-3247 today.