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Energy Efficiency



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Insulation Protection Designed for Northern Climates

Can an insulating glass package deliver both aesthetic appeal and optimal thermal protection, even with larger windows? Our energy efficient vinyl windows with EnergyPlus® from Gentek can!

EnergyPlus® glass is specially formulated with insulating properties that provide superior energy savings in cold regions with difficult heating requirements. Combined with the Super Spacer® Warm-Edge Spacer System and insulating gas, the windows achieve the maximum Energy Rating (ER) while allowing the cheerful ambience of natural sunlight to illumminate your home

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