Ratings works like gas mileage on your car. The higher the AFUE number, the higher the efficiency and the greater the energy savings.*
For instance, if your old unit is 10 to 15 years old, the efficiency rating could be a wasteful 64%. This chart gives you a sample of you how much you could save by upgrading to the Lincoln system that fits your needs.* Savings percentages based on national average; may vary according to efficiency of current unit and temperature zone location.
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