What do HVAC ratings mean?

Technology

If you are looking for a new heating and cooling system, there are a lot of factors to think about. Is it the right size for your home? Will it provide the efficiencies you are looking for? How does the system work with your finances? Will the unit be quiet enough for your home? How will it impact the air quality? That’s a lot to think about. On top of all the questions you have, some HVAC knowledge seems just out of reach. The acronyms and shorthand that industry professionals use can create questions for the average individual. Luckily, the team at B&D Air Conditioning 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 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. A system with an AFUE of 90 or higher is considered high efficiency. 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 compares how much of the fuel used to power a home comfort system is converted to cooling output. A more efficient system will have a higher SEER rating.

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

Heating Seasonal Performance Factor (HSPF): Have a heat pump? 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 want a model 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 within your indoor space. MERV takes a look at the size of the holes. The higher the rating, the smaller the holes in the filter—and a decrease in the number of 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 keeping the air in your home clean and comfortable. Make sure to find the rating that works with your home, with your system and change the filter regularly.

These ratings will be important as you search for a solution that meets your needs. If you’re ready to find the best solution, or you have more questions about system ratings, call the team at B&D Air Conditioning. You can reach us at 928-432-6018 or by scheduling an appointment with us online. We’re here to answer your questions and get you on the path to home comfort.

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