What do HVAC ratings mean?

Technology

When you’re searching for a new HVAC system, there are a lot of factors to think about. Is it the appropriate size for your home? Will it provide the efficiencies you are looking for? Is the price point one you’re comfortable with? Will the unit be quiet enough for your space? Will it be beneficial for your indoor 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. Luckily, the team at Total Comfort Solutions 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. The higher the percentage of heat used, the better the system rating.

If your system has an AFUE rating of 85, that means the system converts 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 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. Much like AFUE, this ratio looks at how much of the fuel used to power an HVAC system is converted to cooling output. The higher the SEER rating, the more efficient your system is operating.

Minimum SEER ratings differ between regions. A high efficiency model that provides more energy savings in the long run will generally be a little more expensive. Lennox offers 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 want a model that’s ENERGY STAR® efficient, then look for a model with a rating above an 8.2—as well as a SEER rating above 12.

Minimum Efficiency Reporting Value (MERV): Air filters have holes that let air and particles to circulate within your indoor space. MERV measures the size of the holes. The higher the rating, the smaller the holes in the filter—and the fewer debris particles that enter into your home. If you’re wanting a more efficient filter, find one with a MERV rating of 10 or higher.

Air filters are essential 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 frequently.

These ratings will be important as you search for a solution that meets your needs. If you’re ready to find the model that will work for you, or you have more questions about system ratings, call the team at Total Comfort Solutions. You can reach us at 404-987-5502 We’re happy to answer any questions you have and show you options that can work for your home.

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