If you are looking for a new heating and cooling system, you have to consider a lot of factors. Is it the appropriate size for your home? Will it provide the efficiencies you are looking for? Will it work with your budget? Will the system be quiet enough for your house? Will it be beneficial for your indoor 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 may include can be confusing for the average person. Fortunately, the professionals at Stieferman Heating Company Inc 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. 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 makes 85 percent of the fuel used into useable heat. A system with an AFUE of 90 or higher is considered high efficiency. Lennox carries residential furnaces with ratings up to 98.7—the highest in the industry.
Seasonal Energy Efficiency Ratio (SEER): This rating is used in both air conditioners and heat pumps. Similar to AFUE, this ratio looks at how much of the fuel used to power a heating and cooling system is converted to cooling output. A more efficient system will have a higher SEER rating.
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 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, 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 permit 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 fewer 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 indoor air quality. Make sure to find the rating that works with your home, with your system and change the filter on a consistent basis.
Finding an HVAC system that fits with your home, your energy efficiency needs and your desired comfort starts with understanding ratings. If you’re ready to find the answer for your home comfort, or you have more questions about system ratings, call the experts at Stieferman Heating Company Inc. You can reach us at 573-203-3908 We’ll work with you to find the best solution and get to the bottom of all your questions.