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Facts create the best basis for well-informed decisions. This also goes for the configuration of windows: Anyone who wants to know how the thermal transmission coefficient (UW) can be optimised during the customised configuration of the window system can simply use the free Thermix WinUW calculator provided by Ensinger.

Online at www.thermixspacer.com or using the app for Android and iOS, the thermal parameters in line with EN ISO 10077-1 can be reliably calculated. All the stored data has been updated and expanded to include the new Thermix TX PRO and Thermix Low Psi spacers. With the newly added languages Chinese and Portuguese, a total of 13 language variants are available.

“Using this calculation tool, window constructors, energy advisers, planners and architects can precisely calculate the behaviour of the UW value with different frame materials, types of glazing and spacers”, says Rolf Friedrich Buhl, Head of Global Sales for Thermix at the plastics specialist Ensinger. “Being energy-efficient pays dividends – in both cold and warm climate zones.”

The Psi values of the spacers (Thermix warm edge versus aluminium), frame profiles (wood, PVC, wood-aluminium, aluminium) and the double or triple insulating glazing that are used are based on the representative values in the data sheets from the Federal Flat Glass Association (BF) and the scope of the Guideline WA-08/3 from the Institut für Fenstertechnik (ift) [Institute of Window Technology].