Sale and installation of windows. Wide selection of products and companies. The OKNA.ua catalogue of window systems.
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Energy efficiency
To calculate characteristics of the window, select a profile and a profile system, as well as double-glazed window. Its energy efficiency is also influenced by the size and type of windows.
The calculation results show economy of heat, electricity or gas. They also represent your contribution to energy independence.
Along with above-mentioned, total insulation of the window is defined, i.e. the level of the street noise absorbed by the closed window.
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