When upgrading your air conditioner, choosing the right SEER rating is key to maximizing comfort and energy efficiency. The ratings — typically ranging from 13 to 26 — tell you how efficiently your AC uses energy to cool your home. While higher ratings translate to more energy savings, they often require a higher upfront investment. Choosing the correct rating to balance comfort and budget depends on your climate, home size, and current HVAC setup.
Read on to learn how to choose the best SEER rating for your home and the benefits of an energy-efficient upgrade.
Understanding SEER Ratings
SEER, which stands for Seasonal Energy Efficiency Ratio, reflects how much energy and money an HVAC unit requires to operate over a single year. A SEER rating is measured by dividing the total cooling output of a system over a cooling season by the total energy used during that period. The less energy a unit uses, the more efficient it is, and the higher the rating.
Most air conditioners have SEER ratings of between 13 and 26, while some premium or variable speed unit ratings are higher.
Factors Influencing SEER Rating Selection
Region and climate are the most important factors when determining the best air conditioner SEER rating for your home. The optimal SEER rating to create a comfortable temperature for a home in one region differs from that in another due to differences in climate, humidity, and seasonal temperatures.
For example, in Arizona, where summer temperatures often rise above 100°F, a higher SEER rating of 18 to 26 is best to improve efficiency and keep energy costs down. In a milder region like Oregon, you may only require a SEER rating of 14 to 18 because your air conditioner won’t need to run as often.
Other factors to consider when selecting a SEER rating include your home size, insulation quality, and existing ductwork. If you have a large home, poor insulation, or outdated ductwork, choose a higher SEER rating to receive effective cooling without excessive energy waste. A reputable HVAC company can evaluate these factors to help you find the most efficient and cost-effective SEER rating for your home.
Recommended SEER Ratings by Region
The U.S. Department of Energy requires that all air conditioners have a minimum SEER rating of 13 nationwide. While this is the national standard, each region has separate recommendations based on climate. Northern states have a minimum SEER rating of 14, while Southern and Southwest regions have a minimum of 15.
The recommended SEER ratings based on local climate are as follows:
- Hot and humid climates (Florida, Texas, Louisiana): SEER 16 to 26
- Hot and dry climates (Arizona, Nevada, New Mexico): SEER 18 to 26
- Mild and seasonal climates (Oregon, Washington, Midwest states): SEER 14 to 18
- Cold climates (Northern states, mountain states): SEER 14 to 16
Benefits of High SEER Ratings
While a higher SEER rating comes with a bigger investment, the benefits often outweigh the upfront cost. A good SEER rating means enhanced energy efficiency and indoor comfort, helping you save in the long run.
Some of the top benefits of choosing a high SEER rating include:
- Improved energy efficiency: A higher SEER rating means your unit operates more efficiently, helping to reduce your energy usage and utility bills.
- Enhanced home comfort: Air conditioners with high ratings offer more effective cooling, keeping you comfortable during the scorching summer days.
- A smaller carbon footprint: Higher SEER ratings reduce your environmental impact and lower greenhouse gas emissions by using less electricity.
Retrofitting vs. Replacement Considerations
If you want to upgrade your air conditioner, consider whether retrofitting or replacement is the best option.
Retrofitting
Retrofitting involves replacing specific components in your air conditioner rather than the entire system. If your AC is under 10 years old and in good condition, retrofitting is a cost-effective way to improve energy efficiency and cooling abilities. It’s typically less expensive upfront and extends the service life of your current unit.
Replacement
If your air conditioner is nearing the end of its service life, constantly requiring repair, or in poor condition, replacement is likely the best solution. Upgrading to a new, high-efficiency unit helps lower your energy usage, enhance home comfort, and reduce the chance of future breakdowns. Many modern units also feature smart controls, improved air filtration, and programmable thermostats, offering more control over your home comfort.
Maintenance and Optimizing SEER Performance
Routine maintenance is the best way to maintain your air conditioner’s SEER performance and keep it running in top condition. Schedule a professional tune-up with a reputable HVAC company before the cooling season begins, ideally in early spring. A tech will inspect, clean, and service your system so it’s ready to keep you cool through the hot summer months.
During the appointment, they’ll perform these key tasks:
- Changing the air filter
- Cleaning the condenser coils
- Checking refrigerant levels
- Inspecting the ductwork for leaks
- Lubricating moving parts
Proper maintenance reduces wear and tear on your unit, helping it operate efficiently year-round.
Contact the Team at 1st Choice Mechanical To Learn More About Choosing the Right AC for Your Home!
Whether you want to learn more about which AC SEER rating you need for your Arizona home, or you’re ready to make the switch to a new, high-efficiency unit, the team at 1st Choice Mechanical is here to help. Our certified HVAC technicians offer comprehensive air conditioner repair, installation, and maintenance services to help you stay cool all summer long. We’ll guide you through your options to find the best unit for your needs, seamlessly install it for maximum efficiency, and keep it running at peak performance for years to come.
Contact us to learn why we’re a top HVAC contractor in the greater Phoenix area. Our team is available to assist you with a comprehensive range of home services.