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What is a Good AFUE rating?

If you’re shopping for a new heating system, you’ll probably come across a variety of AFUE ratings. So what is a good annual fuel utilization efficiency (AFUE) rating for a new heating system? Calculated in percentages, a high AFUE rating allows you to determine the efficiency of a heating system. Older systems tend to operate in the range of 50 to 70 percent, while some newer systems can operate as high as 100 percent. Upgrading to a newer system with a higher AFUE percentage can help you save money on your heating bill.

A heating system’s AFUE rating is determined by the ratio of heat output of the system compared to the total energy it consumes. For an older system with a 50 percent AFUE rating, only 50 percent of the energy is used to heat your home, while the rest is wasted in the form of heat loss. It’s important to note that AFUE doesn’t account for heat loss form your duct system or piping–which the U.S. Department of Energy says can account for as much as 35 percent of heat loss.

The type of heating system you want to purchase will determine the AFUE rating you need:

  • For furnaces, look for a minimum AFUE rating of 78 percent.
  • For fossil-fueled boilers, look for a minimum AFUE rating of 80 percent.
  • For gas-fueled boilers, look for a minimum AFUE rating of 85 percent.

To increase the efficiency of your current heating system, you can consider retrofitting your furnace or boiler. Of course, if you need to replace your heating system in a few short years anyway, it might cost you less in the long run to replace your heating system with a more energy efficient system with a high AFUE rating.

If you’re interested in upgrading to a more efficient heating system, contact All Seasons Heating & Cooling for furnace replacement today. When you call us for furnace replacement in Baltimore, we will come and inspect your current furnace, show you all the new furnace choices available to you, and then tell you how much you can save on your energy bill with a new furnace. Our experienced technicians will listen to your needs and determine the best new furnace for your home.

What is a Good AFUE rating?

If you’re shopping for a new heating system, you’ll probably come across a variety of AFUE ratings. So what is a good annual fuel utilization efficiency (AFUE) rating for a new heating system? Calculated in percentages, a high AFUE rating allows you to determine the efficiency of a heating system. Older systems tend to operate in the range of 50 to 70 percent, while some newer systems can operate as high as 100 percent. Upgrading to a newer system with a higher AFUE percentage can help you save money on your heating bill.

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