What do HVAC ratings mean?

Technology

When it’s time for you to shop for a new home comfort system, you have a lot of different features to think about. Is it the right size for your home? Is it energy efficient? Is the price point one you’re comfortable with? Will the unit be quiet enough for your home? How will it impact the air quality? It can be overwhelming. On top of all the inquiries you have, some HVAC knowledge seems just out of reach. The acronyms and shorthand that industry professionals may include can be confusing for the average individual. Lucky for you, the professionals at Franklin's Heating & Air Conditioning, Inc. are breaking down the system ratings to give you a better understanding as you begin shopping:

Annualized Fuel Utilization Efficiency (AFUE): This efficiency rating is a ratio that compares how much of the fuel you use in your furnace to the amount turned into useable heat. A better system will have a higher percentage of heat used.

If your system has an AFUE rating of 85, that means the system makes 85 percent of the fuel used into useable heat. Systems that are highly efficient have an AFUE of 90 or higher. Lennox offers residential furnaces with ratings up to 98.7—the highest in the industry.

Seasonal Energy Efficiency Ratio (SEER): The SEER rating is used to measure both heat pumps and air conditioners. A lot like AFUE, this ratio compares how much of the fuel used to power a heating and cooling system is converted to cooling output. The higher your unit’s SEER, the more efficiently it runs.

Minimum SEER ratings change between regions. High efficiency models are generally more expensive, but they provide more energy savings. Lennox makes air conditioners with SEER ratings up to 26—another industry leading rating.

Heating Seasonal Performance Factor (HSPF): Have a heat pump? This will be what you’ll want to take a look at as far as heating efficiency. The higher your heat pump is rated, the more efficient it is. If you are in the market for a heat pump that’s ENERGY STAR® efficient, that requires a rating above an 8.2—as well as a SEER rating above 12.

Minimum Efficiency Reporting Value (MERV): Air filters have holes that allow air and particles to flow around the house. MERV takes a look at the size of the holes. The higher the rating, the smaller the holes in the filter—and the fewer debris particles that make their way into your home. If you’re seeking a more efficient filter, find one with a MERV rating of 10 or higher.

Air filters are essential to indoor air quality. Make sure to find the rating that works with your home, with your system and change the filter frequently.

Keeping these ratings in mind as you begin looking for a new system will help ensure you find one that meets your needs and will work with your home. If you’re ready to find the answer for your home comfort, or you have more questions about system ratings, call the experts at Franklin's Heating & Air Conditioning, Inc.. You can reach us at 662-350-0343 We’re here to answer your questions and get you on the path to home comfort.

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