ENERGY STAR is a dynamic government/industry partnership that makes it easy for businesses and consumers to save money and protect the environment.
ENERGY STAR is an international symbol of energy efficiency. ENERGY STAR qualified windows are tested and certified by an independent, accredited agency. Products qualify for ENERGY STAR based on either their U-value or their Energy Rating. As well, windows must achieve at least an A2 rating for air tightness.
Windows may qualify for the ENERGY STAR label in one or more ENERGY STAR climate zones. It's important that you select replacement windows that are ENERGY STAR qualified for your region.
Canada has been divided into four climate zones based on annual average temperature (Ontario - Zone B).
Learn more about the ENERGY STAR® in Canada.
Want more from your replacement windows?
Windows with standard glass can’t achieve the ratings necessary to qualify for ENERGY STAR labeling. An ENERGY STAR qualified window will have many of the following features:
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