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 utility cost. So, it’s given that you’re seeking ways to consume less energy. That could involve trying an energy-efficient AC setting or even upgrading to an ENERGY STAR®-rated model with air conditioner installation.

Switching your air conditioning’s fan setting is another way you can conserve money.

Your air conditioner relies on a fan to distribute the chilled air it produces. You manage this fan at your thermostat by setting it to “auto,” which indicates the fan will only be on when the air conditioner is going. Or you can set it to “on,” which indicates it will be on constantly.

Does putting your AC on “fan” save energy in Marshalltown? Not necessarily. Typically, operating your air conditioner’s fan all the time is going to increase your energy bill slightly.

But it also has a few perks (and disadvantages) in regard to your residence’s comfort. Here’s why.

Air Conditioner Fan Set to “On”

Having your air conditioner’s fan go all the time can better balance your family’s comfort. This is great if you have a two-story residence, since rooms upstairs can be hotter. It’s also great if you struggle with inconsistent cooling because of hot and cold areas.

It’s also advantageous if one of your family members has allergies, asthma or other respiratory problems. That’s because the air is continuously being circulated and filtered. On the other hand, you may have to replace your air filters more regularly.

Having the fan on all day can also increase your energy bills. It could also cause the fan to wear out sooner and need air conditioning repair.

Your house may also feel muggier. Air conditioning helps manage humidity by clearing water from the air. But if the fan is continually running, it’s more difficult for moisture to drain from the condenser outside.

Air Conditioner Fan Set to “Auto”

This is the most energy-efficient setting, since the fan will only go when your air conditioner does. It’s good if your house always seems the right temperature, whichever room you’re in.

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

That said, you’ll require reduced energy and won’t have to replace your air filter as frequently. Both are savings that can add up throughout the year, so you’ll have to think about what’s ideal for your home.

If you’re experiencing home comfort issues during the summer, B & G HVAC can support you. We offer a wide range of energy-efficient air conditioners that can keep your house more pleasant while also helping you save more on electrical costs. Many can be partnered with the latest smart home technology, giving you the opportunity to monitor and change temp settings while on the go.

To find out more about how we can make your loved ones more comfy, contact us at 641-323-1210 now.