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

July 16, 2020

During the summer, using your air conditioning can be your highest monthly utility expense. So, it’s normal that you’re looking for ways to consume less energy. That can entail trying an energy-efficient AC setting or even stepping up to an ENERGY STAR®-rated system during air conditioner installation.

Regulating your air conditioning’s fan setting is a second way you can save money.

Your air conditioner uses a fan to dispatch the cool air it creates. You manage this fan at your thermostat by setting it to “auto,” which signifies the fan will only work when the air conditioner is running. Or you can switch it to “on,” which indicates it will run continuously.

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

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

Air Conditioner Fan Set to “On”

Having your air conditioner’s fan run all day 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 good if you struggle with uneven cooling because of hot and cold spots.

It’s also great if one of your loved ones has allergies, asthma or other respiratory problems. That’s due to the fact the air is constantly being circulated and filtrated. On the other hand, you may have to install new air filters more regularly.

Having the fan on all day can also make your energy bills more expensive. It could also result in the fan wearing out sooner and need air conditioning repair.

Your house may also feel more humid. Air conditioning helps manage humidity by extracting wetness from the air. But if the fan is continually going, it’s challenging for moisture to drain from the condenser externally.

Air Conditioner Fan Set to “Auto”

This is the best energy-efficient setting, since the fan will only work when your air conditioner does. It’s good if your home always feels comfortable, whichever spot you’re in.

There are a few downsides to using the auto setting. You could have hot and cold areas in your home and lower air quality. This is due to the fact air isn’t continuously being distributed or being continuously filtered.

That said, you’ll need less energy and won’t be required to change your air filter as often. Both are savings that can tally up throughout the year, so you’ll have to think about what’s right for your home.

If you’re running into home comfort difficulties during the summer, Discount Mechanical Heating & Plumbing Services can support you. We install a large range of energy-efficient air conditioners that can keep your house more pleasant while also helping you save more on energy costs. Many can be partnered with the latest smart home technology, giving you the ability to check and adjust home comfort settings while away.

To learn more about how we can make your loved ones more comfy, contact us at 907-202-9798 now.