Energy Ratings

Efficiency standards for all heating and cooling units manufactured in the U.S. are governed by the Department of Energy. Since as much as half of the energy used in your home goes to heating and cooling,* it helps to consider products with high efficiency ratings.

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Heating efficiency ratings for gas furnaces

Furnaces are rated by the Annual Fuel Utilization Efficiency (AFUE) ratio, which is the percent of heat produced for every dollar of fuel consumed. Like the miles-per-gallon rating on your automobile, the higher the AFUE rating, the lower your fuel costs.

Cooling efficiency ratings for air conditioners and heat pumps

The cooling efficiency rating for air conditioners and heat pumps is Seasonal Energy Efficiency Ratio, or SEER. The higher the SEER, the better the energy performance, and the more you save.

Heating efficiency ratings for heat pumps

The Heating Seasonal Performance Factor (HSPF) is a rating similar to SEER, but it measures the efficiency of the heating portion of heat pumps.

Choosing a matched system for optimum efficiency

All air-conditioning units and heat pumps are specifically designed to work with matched indoor units (furnace or air handler) for optimum efficiency and performance. While an outdoor cooling system may "work" with indoor units, including older systems, it will only operate at its peak potential when it’s paired with the right sized system for your home.

Saving energy starts with a call to your Lennox® Dealer

Your local Lennox® Dealer can help you find the heating and cooling system that best matches your needs for comfort and year-round energy efficiency. Your Lennox Dealer can also make sure your new equipment is properly installed. Improper equipment installation can reduce system efficiency by up to 30%**

Want to know more?

Check out our Comfort Matters blog articles on this topic:

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*Source: U.S. Department of Energy Statistics


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