ENERGY STAR^® Windows Guarantee Energy Efficiency

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Windows and doors can be a major source of heat loss in Canadian homes, so it's a good idea to keep energy efficiency in mind when buying new or replacement units. Inefficient windows and doors not only waste energy and money, they also contribute to increased greenhouse gas emissions that are contributing to climate change.

In the case of windows and sliding glass doors, selecting energy-efficient models is easy – just look for the familiar ENERGY STAR mark, the symbol of energy efficiency across North America.

A map on the ENERGY STAR label will show the Canadian climate zone or zones for which a product is ENERGY STAR qualified. Locate the zone you live in, and if the product is ENERGY STAR qualified for that zone, you've found a winner – a product whose thermal performance has been certified by an independent third party accredited by the Standards Council of Canada. Of course, professional installation is important to ensure that the product delivers on its promise of energy efficiency.

Energy-efficient windows and doors do more than save you money and help the environment. They can also keep your home more comfortable year-round, reduce noise penetration from the outdoors, and alleviate condensation problems on the glass panes in homes with higher humidity levels.

Look for the ENERGY STAR symbol to identify the most energy-efficient products and take action on climate change.

For more information on the ENERGY STAR international symbol or tips on energy efficient products, call Natural Resources Canada's Office of Energy Efficiency (OEE) toll-free at 1 800 387-2000 or visit the OEE Web sites at oee.nrcan.gc.ca and energystar.gc.ca. Or write to Energy Publications, c/o S.J.D.S., Gatineau, Quebec J9J 3N7.