What HVAC Energy-Efficiency Ratings Mean
Are you contrasting the efficiency ratings of new HVAC systems? Perhaps you want to check the rating on your existing HVAC unit. In either case, you can find the efficiency rating and expected yearly operating costs by inspecting the yellow Energy Guide label on the side of the unit. Here’s more information about the various ratings you might see and what they mean.
What Is a SEER Rating?
SEER stands for Seasonal Energy Efficiency Ratio, a way of measuring air conditioning efficiency. The SEER rating represents the cooling output of an AC unit over an entire cooling season, divided by the total amount of energy consumed throughout that time. A higher SEER rating implies greater energy efficiency and lower energy bills.
Presently, the minimum SEER rating for new air conditioners is 14 SEER in the northern U.S. and 15 SEER in the southern U.S. This is an improvement from the previous minimum stipulation of 13 SEER in the north and 14 SEER in the south, which was in effect from 2015 to 2022. This modification reflects the U.S. Department of Energy’s (DOE) continuous efforts to decrease energy consumption and climate-impacting emissions.
These days, premium air conditioners claim ratings of 26 SEER or higher, offering remarkable energy savings. But bear in mind, impressive SEER ratings usually come with a higher up-front cost. Therefore, you should consider both the initial investment and the prospects for ongoing savings when deciding on a new air conditioning unit.
What Is an EER Rating?
Even though SEER ratings are more known to consumers, AC systems have an additional efficiency metric you ought to know. It’s referred to as EER, and it stands for Energy Efficiency Ratio. This rating suggests the efficiency of an cooling system under distinct operating circumstances. The EER rating helps you understand whether the system will handle the demand on extreme summer days.
Currently, only the southwest region has a minimum EER rating of 12.2 EER for residential central air conditioners. Maximum ratings top out at about 14 EER. In most cases SEER and EER typically correspond, with higher ratings indicating greater overall performance.
What Is an HSPF Rating?
Heating Seasonal Performance Factor (HSPF) ratings are measurements of the energy efficiency of air-source heat pumps once in heating mode. HSPF is a proportion of the total heat output in British Thermal Units (BTUs) throughout the heating season to the volume of electricity used in watt-hours. A higher HSPF rating indicates a more efficient heat pump.
The minimum HSPF rating for new heat pumps is 8.8 HSPF, a boost from the prior minimum of 8.2 HSPF. By calling for higher minimum HSPF ratings, the DOE wants to motivate people to use more energy-efficient heating systems in homes and businesses throughout the U.S. The bare minimum is always an option, but you may want to invest in 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 another measure of heating system efficiency, but they only relate to furnaces and boilers. AFUE is a ratio of the annual heat output to the energy used during that period. The higher the AFUE rating, the more efficient the heating unit(s).
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 cut back on your heating bills by opting for 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 find the most energy-efficient appliances 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 go far beyond the minimum specifications to save energy and decrease emissions without sacrificing performance or features. You might also look for the ENERGY STAR Most Efficient designation, which recognizes the leading performers in energy efficiency and innovation. The EPA is actually revising the qualification criteria in the wake 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, call Service Experts Heating & Air Conditioning. We can assess your HVAC challenges and assist you in making an informed decision. We have a wide range of products from today’s most popular brands, all of which meet or exceed the minimum efficiency requirements for 2023. We’re so confident you’ll be happy with our services that we provide a 100% satisfaction guarantee! For more information or to schedule a no-cost HVAC installation quote, please contact a Service Experts office near you.
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