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  2. Pella (company) - Wikipedia

    en.wikipedia.org/wiki/Pella_(company)

    Pella has been an Energy Star partner since 1999. [8] Pella is a member of the United States Green Building Council (USGBC), [9] the American Architectural Manufacturers Association (AAMA) [10] and the Window and Door Manufacturers Association (WDMA). [11]

  3. Energy Star - Wikipedia

    en.wikipedia.org/wiki/Energy_Star

    Energy Star (trademarked ENERGY STAR) is an energy-efficiency program administered by the U.S. Environmental Protection Agency (EPA) in partnership with the U.S. Department of Energy (DOE). [ 2 ] [ 3 ] [ 4 ] The EPA establishes energy efficiency specifications, and those that meet these specifications are eligible to display the ENERGY STAR logo.

  4. Insulated glazing - Wikipedia

    en.wikipedia.org/wiki/Insulated_glazing

    A typical installation of insulated glass windows with uPVC frames. Possibly the earliest use of double glazing was in Siberia, where it was observed by Henry Seebohm in 1877 as an established necessity in the Yeniseysk area where the bitterly cold winter temperatures regularly fall below -50 °C, indicating how the concept may have started: [2]

  5. Use energy-efficient windows and save more with energy tax ...

    www.aol.com/2009/03/06/stimulate-savings-with...

    As part of the American Recovery and Reinvestment Act of 2009 recently signed into law, there are several energy conservation incentives for homeowners, including a never better opportunity to ...

  6. Window insulation - Wikipedia

    en.wikipedia.org/wiki/Window_insulation

    Window insulation reduces heat transfer from one side of a window to the other. The U-value is used to refer to the amount of heat that can pass through a window, called thermal transmittance, with a lower score being better. [1] The U-factor of a window can often be found on the rating label of the window.

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