Energy Data

This tool provides some of the most common options on windows and doors and related NFRC values. For more information about the energy efficiency of specific products and options, please contact your local Marvin sales representative.

See Energy Efficient Windows and Doors for further information on this topic.

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What is Passive building? Find out here along with why Marvin is a leader in #en...

What is Passive building? Find out here along with why Marvin is a leader in #energyefficiency and one of the only large-scale US window manufacturers to have passive building certified products. ...