Marvin Windows and Doors offers an even more energy-efficient option for several of its window and door collections with Tripane with Krypton, which involves filling insulated glass units with a blend of three gases: krypton, argon, and air.
Marvin Windows and Doors offers an even more energy-efficient option for several of its window and door collections with Tripane with Krypton [1], which involves filling insulated glass units with a blend of three gases: krypton, argon, and air. The mix provides a U-factor of just .03. Tripane with Krypton is available on the Ultimate Casement collection, Ultimate Awning, Ultimate Double Hung, Ultimate Double Hung Magnum and Clad Insert Double Hung.
Links:
[1] http://www.marvin.com/benefits-features/energy-efficient/
[2] http://www.housingzone.com/content/101-best-products-2011
[3] http://www.housingzone.com/company/marvin-windows-and-doors