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What Is a SEER Rating and Why Does It Matter?

Are you in the market for a new HVAC system for your home? If you’re shopping for a new air conditioning system, you’ve probably had a bunch of numbers thrown at you: price, tons, voltage, or, what we will focus on today, SEER rating.

A SEER rating is used to measure the efficiency of your cooling system. Do you know what SEER rating system you need for your home? Do you know what to look for when shopping for air conditioners and reviewing SEER ratings? Do you know why SEER ratings matter?

In this article, we’ll help you understand SEER ratings and why they’re important when shopping for your new AC system.

modern ac unit

What Is a SEER Rating?

SEER stands for Seasonal Energy Efficiency Ratio.

What the SEER rating does, is measure the cooling efficiency of an air conditioner or heat pump. Manufacturers calculate the SEER rating by dividing the cooling output for a typical cooling season by the total electric energy consumed during the same period.

Think about the SEER rating this way. Automakers almost always disclose the miles per gallon a car will receive; the SEER rating is extremely similar. Instead of thinking about gas consumed over miles traveled, think electricity consumed over cold air generated.

Typically, the SEER ratings for new residential air conditioners range from 13 to over 20. Like mpg for vehicles, a higher SEER rating indicates greater efficiency.

While the SEER rating is important to consider when purchasing an air conditioner, the highest SEER rating may not be the most suitable or the most affordable option for everyone. You’ll need to consider factors including the age of your house, the size of your house, your preferred temperature setting, and where you live.

What Does the SEER Rating Matter?

Like any other seemingly arbitrary calculation, you may be wondering, “I know higher is better, but what does the SEER rating really mean to me?”

Minimum SEER ratings

The U.S Department of Energy has established minimum SEER rating requirements for air conditioners, this rating varies based on region. If you live in the northern U.S., you can purchase air conditioners with a 13 SEER rating minimum. New systems in Illinois have to have a rating of no less than 14. For more information, refer to this brochure from Energy.gov.

Lower environmental impact

When you purchase an air conditioner with a higher SEER rating, you’re committing yourself to a lower environmental impact. Units with higher SEER ratings produce more cool air using less energy.

More efficiency equals lower utility bills

Piggybacking off the lowered environmental impact, when you use less energy, you can lower your monthly utility bill. This will be especially noticeable if you’re replacing an older air conditioner with a new one.

Older units typically have lower SEER ratings and have lost their efficiency even further as the unit has worn down over time. In some cases, the savings from a newer, more efficient AC unit can offset the cost over time.

Greater indoor comfort

Being hot and sweaty inside of your own home during a heatwave can be unbearable. Maintaining a cool indoor environment is particularly essential if you have difficulty breathing or other medical conditions. Typically, air conditioners with higher SEER ratings have more efficient motors to help keep your home at a consistent, cool temperature all summer long.

You may qualify for a rebate

If you’re replacing an older air conditioning unit, you may be able to qualify for a tax rebate, depending on where you live and what you have installed. Energystar.gov has a rebate finder that you can use to find out if you are eligible.

Improved air quality

Air conditioners with higher SEER ratings can also help maintain air quality.

There isn’t a lot of fresh air making its way into your home. Using a central AC unit allows you to continuously circulate the air through the home and filter out particles like dust and allergens. It is important to note that you need to regularly check and change your AC filters to ensure the best air quality.

Need Help Finding the Perfect Air Conditioner for Your Home?

The air conditioning experts at Althoff industries can help you determine the perfect air conditioner with the best SEER rating for your home and budget. Contact the experts at Althoff Industries today for more information or give us a call at 815-455-7000.

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