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

July 16, 2020

During the hot weather, using your air conditioning can be your highest monthly utility expense. So, it’s normal that you’re checking for methods to save. That may entail using an energy-efficient AC setting or even making the switch to an ENERGY STAR®-rated model with air conditioner installation.

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

Your air conditioner uses a fan to deliver the cool air it produces. You manage this fan at your thermostat by changing it to “auto,” which indicates the fan will only be on when the air conditioner is working. Or you can switch it to “on,” which indicates it will run constantly.

Does putting your AC on “fan” save energy in Libertyville? Not necessarily. Typically, running your air conditioner’s fan all day is going to drive up your energy bill slightly.

But it also gives a few perks (and disadvantages) in relation to your family’s comfort. Here’s why.

Air Conditioner Fan Set to “On”

Having your air conditioner’s fan go continuously can better balance your house’s comfort. This is great if you have a two-story residence, since spaces upstairs can be warmer. It’s also great if you struggle with unbalanced cooling because of hot and cold areas.

It’s also good if someone in your household has allergies, asthma or other respiratory issues. That’s because the air is consistently being distributed and filtered. On the other hand, you may have to install new air filters more frequently.

Having the fan on constantly can also drive up your energy bills. It could also make the fan wear out sooner and need air conditioning repair.

Your house may also feel muggier. Air conditioning helps control humidity by drawing water from the air. But if the fan is always running, it’s more difficult for moisture to drip from the condenser outdoors.

Air Conditioner Fan Set to “Auto”

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

There are a few drawbacks to using the auto setting. You might run into hot and cold spots in your house and reduced air quality. This is because air isn’t always being distributed or being constantly filtered.

That said, you’ll use a lower amount of energy and won’t be required to change your air filter as often. Both are savings that can add up throughout the year, so you’ll have to think about what’s best for your home.

If you’re experiencing home comfort difficulties during hot weather, TopTec Heating, Cooling, Plumbing & Electrical can assist you. We have a large range of energy-efficient air conditioners that can keep your residence more pleasant while also helping you save more on energy expenses. Many are also compatible with the latest smart home technology, giving you the opportunity to monitor and regulate home comfort settings while you’re gone.

To find out more about how we can make your home more comfy, contact us at 847-362-0262 today.