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What Does SEER Mean And How Is It Calculated?

With the temperatures we face during a San Antonio summer, having a powerful air conditioner is about more than convenience –  it’s about safety! You may be ready to upgrade your older AC unit or you could be buying your first cooling system, but you’re going to need to rely on a quality air conditioner installation no matter what. 

Climate Magic wants all of our customers to be informed homeowners, and that includes knowing the basics of HVAC efficiency. If you’ve ever wondered what a SEER rating is or how to tell the efficiency of your future AC unit, read on!

What Is A SEER Rating?

The Seasonal Energy Efficiency Rating (SEER) of an AC unit simply refers to its capability to cool air by using a certain amount of energy. SEER ratings are calculated by dividing the cooling output for one cooling season by the electrical energy input during the same period. 

The more cooling output a unit has and the less energy it uses to produce it, the higher the SEER rating. SEER ratings are also the maximum efficiency rating that your unit can run at. This means that the unit could run at a lower efficiency sometimes depending on weather and internal health.

What Is A Good SEER Rating For My Home?

When it comes to air conditioner efficiency, there’s no one right answer on the best SEER rating. The minimum SEER rating in the modern industry is 13 SEER, but your appropriate SEER could vary depending on your geographical location and your cooling requirements.

For example, locations in the Southwest – like here in San Antonio – actually have an industry minimum rating of 14 SEER. Our climate is much hotter and more humid than in northern areas of the country, and therefore we need more powerful air conditioning systems. 

Pros and Cons of Higher SEER Ratings

Don’t assume that a higher SEER rating is automatically better! 14 SEER systems are perfectly capable of providing cool temperatures in your home. There are several pros and cons to investing in a higher SEER rated AC system.


A higher SEER rating is almost guaranteed to provide better comfort in your home. This could mean more consistent cooling or faster cooling in the living spaces of your home. Higher efficiency will also bring lower energy bills. The system will be able to provide better cooling and use less energy at the same time.


Higher SEER rated AC units are going to be more expensive up front when you purchase them for installation. If you are on a budget for your AC replacement, you might consider choosing a moderate SEER rating instead of jumping straight to a 21 SEER.

Effective San Antonio AC Replacement

When you are ready to replace your AC unit, the team here at Climate Magic is always ready to help. We want this investment to be a great experience and serve you well for many years to come. For all your AC installation needs, count on the team that gets the job done right and supports you every step of the way. Give us a call!

Why People Choose Us

Customer Focused
We seek to educate our customers about all aspects of maintenance, repair, and replacement of your home's cooling and heating systems, while offering the best service possible.
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Compassionate Service
We care about our customers and how our services affect their lives. Our efficient team provides quick and effective repairs and installations every time to give our customers their lives back.
Honest & Upfront
When you work with our team you will never experience surprise fees. We talk to our customers openly before work begins to get their approval on the service to be provided and the cost.

What Our Customers Have To Say

High Quality Company!

We are loyal customers. Anytime we have had A/C issues, Climate Magic has been very responsive. Martin took good care of our system even though we were overdue for a new unit. When we were finally ready to upgrade, they were able to schedule us in quickly. Peter and Ernie did a fantastic job on our new install! They are very knowledgeable and thorough. High quality company.

Melissa L.

Friendly and Professional!

I have used Climate Magic for many years now and have always had positive experiences. I get a reminder call when it’s inspection time, and messages letting me know when my technician is on the way with a picture of who is coming. Carl Banta usually services my unit and is always friendly and professional. Thank you Climate Magic!

Lynne C.

Quick Response!

Climate Magic installed my a/c unit years ago! They have been professional, courteous and prompt to fix any problems I have had over the years. The latest was last week when my a/c stopped working in 100+ degree weather! My technician was there in about an hour, and the unit was fixed within an hour. Thank you for keeping me cool!!!

Teri S.