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    Understanding HVAC System Efficiency Ratings

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      Understanding HVAC System Efficiency Ratings

      Recognizing the importance of HVAC efficiency ratings when selecting a system for your home can save you money and ensure optimal performance. In this post, we discuss what these ratings signify and how they impact your HVAC system’s energy efficiency. 

      Understanding HVAC System Efficiency Ratings


      The seasonal energy efficiency ratio (SEER) is a critical measure of an air conditioner’s energy efficiency. It’s calculated by dividing the cooling output over a typical cooling season by the total electric energy input during that same period. The higher the SEER rating, the more energy-efficient the air conditioner. Modern air conditioners usually have SEER ratings ranging from 13 to 21. High SEER ratings can result in substantial energy savings, especially in hot climates where air conditioning is extensively used. So, before you go ahead with your air conditioning installation, make sure your unit has a good SEER rating so you get the best deal possible. 


      Annual fuel utilization efficiency (AFUE) is a rating that measures how efficiently a furnace or boiler converts fuel into heat over a year. An AFUE of 90%, for instance, means that 90% of the fuel is used to generate heat, while the remaining 10% escapes as exhaust. The higher the AFUE rating, the more efficient the heating system. High-efficiency furnaces and boilers often have AFUE ratings of 90% or more, which can result in significant energy savings over the lifespan of the system.

      How Efficiency Ratings Aid in HVAC Selection

      Understanding these efficiency ratings is crucial when choosing an HVAC system for your home. They provide a standard way to compare different models and make an informed decision based on potential energy savings and environmental impact. Choosing a system with high efficiency ratings may cost more upfront but can result in substantial savings over the system’s lifespan due to reduced energy consumption. A unit with a higher SEER, for example, will also lessen the need for frequent air conditioning repair.


      The heating seasonal performance factor (HSPF) is used to measure the efficiency of heat pumps. Like SEER, HSPF is a ratio of the total heat output to the total electricity consumed over an average heating season. Higher HSPF ratings indicate more efficient heat pump performance. Modern heat pumps typically have HSPF ratings between 8 and 10. An efficient heat pump with a high HSPF can provide cost-effective heating and cooling, particularly in mild climates.

      Superior Air’s HVAC services can help you select and install a high-efficiency HVAC system. Our experts can explain these efficiency ratings in detail and recommend systems that meet your specific needs and budget. We also provide professional air conditioning maintenance services to ensure your unit operates at peak efficiency for years to come. Call us at (559) 734-2002 or visit our contact page to schedule an appointment. We serve clients in Hanford, CA, and surrounding areas.

      We invite you to schedule an appointment with Us at Superior Air for Quality HVAC Service, highlighting energy savings and improved indoor air quality for you and your family. Whether your needs are for a new heating or cooling system, or an appointment to address an operational concern, please contact us at either convenient online option below, we would be happy to be of service to you.

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        • Superior Air
        • 8244 W. Hillsdale Ct. #11, Visalia, CA 93291
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