ENERGY STAR® qualified product
|Double or triple glazing with low-emissivity (“low-e”) glass, letting little heat escape||Double glazing with regular glass|
|Inert gas such as argon or krypton in sealed unit||Air in sealed unit|
|Warm-edge (made of low-conductivity composite material)||Aluminum|
ENERGY STAR® qualified products don’t necessarily cost more than conventional products. When they do, the money you save on heating should quickly cover the extra cost. In addition, your ENERGY STAR® qualified windows and patio doors can help increase the resale value of your home.
When you buy ENERGY STAR® windows or patio doors that are qualified for the zone you live in, you know you’re getting a highly energy-efficient product. If the product is qualified for a colder zone, you’ll save even more on heating.
Because new homes often have a large floor area and many large windows, owners have a lot to gain by selecting the most energy-efficient products available. If you’re having a house built, ask the builder to put in ENERGY STAR® qualified windows and patio doors.
To maximize your energy savings, have your new purchases installed by a professional. An experienced installer will be able to minimize heat loss and air infiltration around the frames. Most window retailers offer installation services.