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Kolbe's ThermaPlus LoE Glass Expands Window Choices

To Meet Home Energy Federal Tax Credit Requirements

Wausau, Wis. (May 2010) – Kolbe introduces ThermaPlus™ LoE insulating glass to present homeowners with more choices in window products qualifying for the federal income tax credit for energy efficient home upgrades. The maximum credit has been raised to $1,500 for combined improvements to one, existing, primary residence during the years 2009-2010.

Homeowners are required to document that windows they have purchased meet a combined U-factor and Solar Heat Gain Coefficient rating of .30 or less. The U-factor is based on a window's resistance to heat flow and its insulating value; the Solar Heat Gain Coefficient (SHGC) measures the fraction of solar energy admitted, and indicates how well the product blocks heat caused by sunlight.

Necessary supporting records are purchase receipts and the Manufacturer Certification Statement listing the U-Value and SHGC rating. Kolbe provides its certification statement and thermal performance ratings at its Web site. It also offers an easy, online selection tool to review its numerous window products to meet these requirements. To use this tool, please visit Kolbe's Web site and click on "Tax Credits for Efficient Products," at Users can search and sort by product model, product name, product series, gas fill, or by glass coating such as "ThermaPlus 270."

"ThermaPlus LoE glass enhances the thermal performance of the glass, which meets the more stringent Stimulus energy performance requirements. This helps homeowners achieve long-term savings by reducing energy bills," notes Cindy Bremer, Kolbe’s vice president of marketing. She adds that this new glass option is "unique to Kolbe."

ThermaPlus LoE insulating glass is available in Kolbe's Ultra, Heritage, Classic and Latitude™ Series product lines, and in the company's impact and laminated glass products. Three energy-efficient insulation options are offered – LoE²-270, LoE³-366, or  LoE³-366 (MA), which is designed for high altitude areas.

To learn more about glass options for Kolbe’s windows and doors, please call 800-955-8177 or visit

What began in 1946 as a two-brother team has grown into an internationally respected manufacturing company. Kolbe & Kolbe Millwork Co, Inc. remains a privately held, community-oriented business located in Wausau, Wis. Covering nearly one million-square-feet, its state-of-the-art facilities feature high-tech machinery and a design center to present the creative possibilities offered by Kolbe windows and doors.

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