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ENERGY STAR Windows: An Economical and Environmentally-Friendly Investment

When installing windows, doors, or skylights in your home, make sure that they’re ENERGY STAR certified. In order to receive the ENERGY STAR certification in Canada, products must meet strict quality standards. These products must meet specific energy levels in four of Canada’s climate zones. They are judged on their Energy Rating (ER) and U-factor. …

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