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

July 16, 2020

During the hot weather, operating your air conditioning can be your biggest monthly electricity cost. So, it’s given that you’re looking for methods to use less energy. That can include using an energy-efficient AC setting or even stepping up to an ENERGY STAR®-rated unit during air conditioner installation.

Switching your air conditioning’s fan setting is an additional way you can spend less money.

Your air conditioner works with a fan to deliver the chilled air it makes. You manage this fan at your thermostat by setting it to “auto,” which means the fan will only work when the air conditioner is going. Or you can switch it to “on,” which indicates it will run constantly.

Does putting your AC on “fan” save energy in Cottonwood & Prescott? This isn’t always the case. Generally, operating your air conditioner’s fan all day is going to drive up your energy bill slightly.

But it also gives a few advantages (and drawbacks) in relation 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 ideal if you live in a two-story residence, since spaces upstairs can be more hot. It’s also great if you have difficulties with uneven cooling because of hot and cold areas.

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 circulated and filtrated. However, you may have to install new air filters more regularly.

Having the fan on all the time 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 feel muggier. Air conditioning helps manage humidity by drawing wetness from the air. But if the fan is continually running, it’s challenging for moisture to flow from the condenser externally.

Air Conditioner Fan Set to “Auto”

This is the best energy-efficient setting, since the fan will only run when your air conditioner does. It’s great if your house always feels comfy, no matter what spot you’re in.

There are a few disadvantages to using the auto setting. You might experience hot and cold spots in your home and lower air quality. This is since air isn’t continuously being distributed or being constantly filtrated.

On the flip side, you’ll need reduced energy and won’t need to get a new air filter as regularly. Both are savings that can add up during the year, so you’ll have to consider what’s best for your needs.

If you’re running into home comfort difficulties during hot weather, Connolly Electric & Mechanical can support you. We install a substantial range of energy-efficient air conditioners that can keep your residence comfortable while also helping you save more on energy expenses. Many can be partnered with the latest smart home technology, giving you the opportunity to monitor and adjust home comfort settings while on the go.

To discover more about how we can make your residence more comfortable, contact us at 928-251-4327 now.