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KWC - double - 25.02.2026
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THERMO front door

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PORTA THERMO is a modern range of energy-efficient steel external doors, offering excellent thermal insulation with a Ud value from 0.57 W/m²K. The doors are available in four packages (STANDARD, OPTIMUM, OPTIMUM ENERGY and PREMIUM ENERGY), which differ in construction (e.g. steel, aluminium or SolidTherm composite frames) and thermal performance.

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