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

July 16, 2020

During the summer, using your air conditioning can be your largest monthly electrical expense. So, it’s given that you’re seeking methods to consume 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 spend less money.

Your air conditioner works with a fan to dispatch the cool air it creates. You manage this fan at your thermostat by setting it to “auto,” which indicates the fan will only run when the air conditioner is operating. Or you can set it to “on,” which means it will run continuously.

Does putting your AC on “fan” save energy in Rapid City? This isn’t always the case. Usually, using your air conditioner’s fan all the time is going to increase your energy bill slightly.

But it also has a few advantages (and drawbacks) in regard to your family’s comfort. Here’s why.

Air Conditioner Fan Set to “On”

Having your air conditioner’s fan operate all the time can better equalize your house’s comfort. This is great if you have a two-story residence, since areas upstairs can be warmer. It’s also ideal if you have problems with uneven cooling because of hot and cold areas.

It’s also great if one of your loved ones deals with allergies, asthma or other respiratory problems. That’s since the air is consistently being distributed and filtrated. On the other hand, you may have to install new air filters more frequently.

Having the fan on constantly can also increase your energy bills. It could also cause the fan to wear out more quickly and need air conditioning repair.

Your house may also seem more moist. Air conditioning helps control humidity by clearing water from the air. But if the fan is always on, it’s more difficult for moisture to drain from the condenser outside.

Air Conditioner Fan Set to “Auto”

This is the highest energy-efficient setting, because the fan will only operate when your air conditioner does. It’s great if your home always seems comfortable, whichever room you’re in.

There are a few disadvantages to using the auto setting. You could have hot and cold locations in your residence and decreased air quality. This is due to the fact air isn’t always being distributed or being continuously filtered.

On the other hand, you’ll use a lower amount of energy and won’t have to switch you air filter as often. Both are savings that can tally up over the year, so you’ll have to think about what’s ideal for your needs.

If you’re experiencing home comfort difficulties during warm weather, Precision Mechanical can assist you. We have a wide range of energy-efficient air conditioners that can keep your residence more pleasant while also helping you save more on electrical expenses. Many also work with the latest smart home technology, giving you the opportunity to check and adjust temperature settings while you’re gone.

To discover more about how we can make your home more comfortable, contact us at 605-206-3766 right away.