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 to consider a lot of factors. Is it the correct size for your home? Will it be energy efficient? Will it work with your budget? Will the HVAC system be quiet enough for your space? How will it impact the air quality? You have a lot to think about when considering the best solution. On top of all the factors you want to learn more about, some HVAC knowledge seems just out of reach. The acronyms and shorthand that industry professionals use can raise more questions for the average homeowner. Lucky for you, the team at Banister's Heating & Air Conditioning Services are breaking down the system ratings to provide more education as you head into the purchasing process:

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. If you are looking for a highly efficient system, you’ll want one that has an AFUE of 90 or higher. Lennox has 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 looks at how much of the fuel used to power a home comfort system is converted to cooling output. The higher the SEER rating, the more efficient your system is operating.

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

Heating Seasonal Performance Factor (HSPF): Looking into heat pumps? This is the rating to keep in mind. You’ll want to look for heat pumps with a higher rating if efficiency is your goal. 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 circulate around the house. MERV measures the size of the holes. The higher the rating, the smaller the holes in the filter—and fewer particles that make their way into your home. If you’re wanting a more efficient filter, find one with a MERV rating of 10 or higher.

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

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 team at Banister's Heating & Air Conditioning Services. You can reach us at 575-446-3948 We’re here to answer your questions and get you on the path to home comfort.

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