What HVAC Energy-Efficiency Ratings Mean
Are you comparing the efficiency ratings of new HVAC systems? Perhaps you’re just curious to understand the rating on your existing HVAC equipment. Either way, you can learn the efficiency rating and estimated yearly operating costs by reading the yellow Energy Guide sticker around the side of the unit. We’d like to share some details about the multiple ratings you might find and what they mean.
What Is a SEER Rating?
SEER is short for Seasonal Energy Efficiency Ratio, a rating of air conditioning efficiency. The SEER rating signifies the cooling output of an air conditioning unit over the entire cooling season, divided by the amount of energy utilized throughout that time. A higher SEER rating implies better energy efficiency and lower energy bills.
Today, the minimum SEER rating for recently manufactured air conditioners is 14 SEER in the northern U.S. and 15 SEER in the southern U.S. This is an improvement from the past minimum stipulation of 13 SEER in the north and 14 SEER in the south, that was in effect from 2015 to 2022. This adjustment reflects the U.S. Department of Energy’s (DOE) ongoing efforts to minimize energy consumption and greenhouse gas emissions.
Nowadays, premium air conditioners boast ratings of 26 SEER or higher, delivering remarkable energy savings. But bear in mind, exceptional SEER ratings normally come with a higher initial cost. Which means you should think about both the initial investment and the prospects for long-term savings when choosing a new air conditioning unit.
What Is an EER Rating?
Even though SEER ratings are more well-known, AC systems have another efficiency measurement you should know about. It’s called EER, and it means Energy Efficiency Ratio. This rating suggests the effectiveness of an air conditioner under specific operating conditions. The EER rating helps you understand if the system will keep up with demand on extreme summer days.
Currently, only the southwest section of the country has a minimum EER rating of 12.2 EER for residential central air conditioners. The highest ratings top out at about 14 EER. Most of the time SEER and EER for the most part correspond, with higher ratings meaning better overall performance.
What Is an HSPF Rating?
Heating Seasonal Performance Factor (HSPF) ratings are metrics that indicate the measurement of the energy efficiency of air-source heat pumps when in heating mode. HSPF is a proportion of the total heat output in British Thermal Units (BTUs) throughout the heating season to the amount of electricity used in watt-hours. A higher HSPF rating means a more efficient heat pump.
The minimum HSPF rating for new heat pumps is 8.8 HSPF, an increase from the prior minimum of 8.2 HSPF. By demanding higher minimum HSPF ratings, the DOE is making it more affordable long-term for Americans to use more energy-efficient heating systems in homes and businesses across the U.S. The bare minimum is always an option, but you may want to consider a high-end heat pump with a rating of 13 HSPF or higher for the greatest performance.
What Is an AFUE Rating?
Annual Fuel Utilization Efficiency (AFUE) ratings are yet another standard of heating system efficiency, but they apply to furnaces and boilers. AFUE is a proportion of the annual heat output to the fuel consumed during that period. The greater the AFUE rating, the more efficient the furnace or boiler.
In 2023, the minimum AFUE rating for new gas furnaces was revised to 81. Previously, the several southern states had a minimum of 80 AFUE, and the north required ratings of 90 AFUE or higher. While you aren’t required to install anything above the minimum, you’ll spend less on your heating bills by choosing a furnace rated 95 AFUE or higher.
What Is an ENERGY STAR® Rating?
The Environmental Protection Agency (EPA) introduced the ENERGY STAR program in 1992 to help homeowners and businesses identify the most energy-efficient products available. HVAC equipment, appliances, water heaters, light fixtures, office equipment, electronics and building products that achieve or exceed superior efficiency standards can earn ENERGY STAR certification.
ENERGY STAR-rated products perform well above the minimum specifications to save energy and reduce emissions without compromising performance or features. You might also look for the ENERGY STAR Most Efficient designation, which highlights the leading performers in energy efficiency and innovation. The EPA is actually updating the qualification criteria in light of the new minimum HVAC efficiency standards.
Install an Efficient HVAC System
For help determining which HVAC energy-efficiency rating is appropriate for your budget, turn to Service Experts Heating & Air Conditioning. We can evaluate your HVAC challenges and assist you in making an informed decision. We can provide you with a wide range of products from today’s most reliable brands, all of which satisfy or surpass the minimum efficiency requirements for 2023. We’re so sure you’ll be delighted with our services that we offer a 100% satisfaction guarantee! For more information or to schedule a free HVAC installation quote, please contact a Service Experts office near you.
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