If you have been researching air conditioning systems or looking into available HVAC energy incentives, you may have seen the term “SEER” used.  

The SEER rating is a key factor to consider when designing and installing an air conditioning system, but what exactly is it and why is it important?

What does SEER stand for?

SEER stands for Seasonal Energy Efficiency Ratio and is a measure of how efficiently a system uses electricity to cool your home. The higher the SEER rating, the more efficient the system is, leading to decreased energy expense. 

 Image of house that represents its HVAC system's SEER rating.

How is the Rating Determined?

The SEER rating for an HVAC system is determined by measuring the cooling output of the system over an entire cooling season, divided by the total energy usage during that same period. The final calculation represents the system’s overall energy efficiency.  

In short, this represents the energy and money required for the unit to operate efficiently over a year. A higher SEER rating indicates that less energy is used to produce the appropriate amount of cooling. 

Why Does a System's SEER Rating Matter? 

The higher the SEER rating, the more efficient the system is at cooling.

In general, a system with a higher rating will result in lower energy bills (since it uses less energy to operate) and a smaller carbon footprint. Additionally, high SEER-rated systems may also qualify for rebates or incentives from your utility company or government. In Massachusetts’s, HVAC systems must have a certain rating to qualify for the Mass Save and other municipal energy programs.  

Graphic representing efficient SEER rating.

Jay Moody HVAC is committed to offering its customers sustainable options for home improvement projects by partnering with equipment manufacturers who prioritize high-quality, high-efficiency products. All Jay Moody HVAC systems are designed by on-staff, mechanical engineers who work directly with clients to address each home’s unique needs. 

About The Author

Leo Sharkey

Leo Sharkey is the Owner of Jay Moody HVAC and President of the ACA/New England. Holding a Master’s degree in Mechanical Engineering, Leo brings a science-backed, engineering-driven approach to home comfort design, helping homeowners navigate the many factors that go into creating truly tailored HVAC solutions.Passionate about education and transparency, Leo takes pride in providing homeowners with the type of experience he would want himself: thoughtful guidance, honest recommendations, and no-pressure sales. His mission is to show homeowners that improving energy efficiency doesn't equate to compromising comfort or aesthetics, and that the best systems are designed specifically around the unique needs of the home and family living in it.

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