What do HVAC ratings mean?

Technology

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 right size for your home? Will it be energy efficient? How does the system work with your finances? Will the unit be quiet enough for your space? How will it impact the air quality? 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 may include can raise more questions for the average homeowner. Lucky for you, the professionals at Willco Air Conditioning, Refrigeration & Heating Inc. 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 links 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 turns 85 percent of the fuel used into useable heat. Systems that are highly efficient have an AFUE of 90 or higher. Lennox carries 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. Much like AFUE, this ratio measures how much of the fuel used to power an HVAC system is converted to cooling output. A more efficient system will have a higher SEER rating.

Minimum SEER ratings vary between regions. Choosing a high efficiency model may be more expensive on the front end, but you’ll see greater energy savings throughout the years. Lennox makes air conditioners with SEER ratings up to 26—another industry leading rating.

Heating Seasonal Performance Factor (HSPF): Do you own a heat pump or plan to shop for one? This is the rating to keep in mind. A higher rating indicates a more efficient heat pump. If you want to find a solution 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 move around the house. MERV measures 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 enter 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 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 answer for your home comfort, or you have more questions about system ratings, call the pros at Willco Air Conditioning, Refrigeration & Heating Inc.. You can reach us at 862-345-6896 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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