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

July 16, 2020

During the high temperatures, operating your air conditioning can be your largest monthly electrical expense. So, it’s given that you’re seeking methods to save. That could entail finding an energy-efficient AC setting or even stepping up to an ENERGY STAR®-rated system with air conditioner installation.

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

Your air conditioner uses a fan to distribute the cold air it creates. You adjust this fan at your thermostat by setting it to “auto,” which signifies the fan will only be on when the air conditioner is cooling. Or you can adjust it to “on,” which signifies it will run constantly.

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

But it also offers a few pluses (and drawbacks) as far as your residence’s comfort. Here’s why.

Air Conditioner Fan Set to “On”

Having your air conditioner’s fan go continuously can better equalize your family’s comfort. This is ideal if you live in a two-story home, since rooms upstairs can be more hot. It’s also good if you have difficulties with inconsistent cooling due to hot and cold areas.

It’s also beneficial if someone in your household suffers from allergies, asthma or other respiratory illnesses. That’s because the air is consistently being distributed and filtrated. On the flip side, you may have to switch your air filters more frequently.

Having the fan on constantly can also make your energy bills more expensive. It could also make the fan wear out faster and need air conditioning repair.

Your home may also feel muggier. Air conditioning helps manage humidity by clearing water from the air. But if the fan is continually going, it’s harder for moisture to drain from the condenser externally.

Air Conditioner Fan Set to “Auto”

This is the best energy-efficient setting, as the fan will only operate when your air conditioner does. It’s ideal if your house always appears comfortable, regardless of which spot you’re in.

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

On the other hand, you’ll need less energy and won’t have to switch you air filter as often. Both are savings that can tally up throughout the year, so you’ll have to think over what’s best for your home.

If you’re having home comfort difficulties during hot weather, Three Rivers Heating & Cooling can assist you. We offer a large range of energy-efficient air conditioners that can keep your house more pleasant while also helping you save more on cooling bills. Many are also compatible with the latest smart home technology, allowing you to check and change temperature settings while on the go.

To hear more about how we can make your residence more pleasant, contact us at 503-213-4433 today.