Window Ratings Energy Star

Independently tested and certified energy performance.

Window ratings energy star.

The energy performance of all energy star qualified windows doors and skylights must be independently tested certified and verified according to test procedures established by the national fenestration rating council nfrc. Though energy star does not require any. Energy star qualified windows doors and skylights. Energy star most efficient 2020 fixed or picture windows.

Are independently tested certified and verified by the national fenestration rating council nfrc and have nfrc ratings that meet strict energy efficiency guidelines set by the us environmental protection agency epa. The energy star most efficient 2020 designation recognizes the most efficient products among those that qualify for the energy star program. The energy star label which means the appliance has met strict energy efficiency criteria set by the u s. Government in addition to the nfrc ratings.

The energy star most efficient 2020 designation recognizes the most efficient products among those that qualify for the energy star program. Nonprofit nfrc is the industry recognized certifying body for windows and doors. The nfrc label can be found on all energy star qualified window door and skylight products but energy star bases its qualification only on u factor and solar heat gain coefficient ratings which are described below. What makes it energy star.

Nfrc is a third party non profit organization that sponsors certified rating and labeling to help consumers. Are manufactured by an energy star partner. Access the full energy star most efficient certified products list in excel excel 57 kb. These vertical slider windows represent the leading edge in energy efficient products this year.