Understanding Your Air Conditioner

What do HVAC ratings mean?

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 correct size for your home? Will it provide the efficiencies you are looking for? Will it work with your budget? Will the unit be quiet enough for your house? What kind of air quality can you expect? That’s a lot to think about. On top of all the inquiries you have, some HVAC knowledge seems just out of reach. The acronyms and shorthand that industry professionals already know can raise more questions for the average homeowner. Fortunately, the experts at Gordon Air Conditioning are breaking down the system ratings you need to know before making a purchase:

Annualized Fuel Utilization Efficiency (AFUE): This efficiency rating is a ratio that associates how much of the fuel you use in your furnace to the amount turned into useable heat. You’ll find that the better systems 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): Both heat pumps and air conditioners use this rating. A lot like AFUE, this ratio compares how much of the fuel used to power a home comfort system is converted to cooling output. The higher your unit’s SEER, the more efficiently it runs.

Minimum SEER ratings change between regions. A high efficiency model that provides more energy savings in the long run will generally be a little more expensive. Lennox makes air conditioners with SEER ratings up to 26—another industry leading rating.

Heating Seasonal Performance Factor (HSPF): Looking into heat pumps? This is the heating efficiency rating you need to know. The higher your heat pump is rated, the more efficient it is. If you want a model that’s ENERGY STAR® efficient, you’ll need 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 circulate through your home. MERV measures 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 looking for a more efficient filter, find one with a MERV rating of 10 or higher.

Air filters are key to the quality of air in your home. Make sure to find the rating that works with your home, with your system and change the filter on a consistent basis.

These ratings will be important as you search for a solution that meets your needs. If you’re ready to find the answer for your home comfort, or you have more questions about system ratings, call the pros at Gordon Air Conditioning. You can reach us at 850-250-0335 We’re here to answer your questions and get you on the path to home comfort.

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