Kowalski Okna · European Windows

Decco 83 Premium

7-chamber 81 mm with a third middle seal.

DECCO 83 Premium: 7-chamber, 81 mm construction width, third (middle) seal, excellent published thermal insulation.

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Core specifications

Partner	Kowalski Okna
System	Decco 83 Premium
Chambers	7-chamber
Installation depth	81 mm
Gaskets	3 seals (middle / third seal)
Thermal transmittance	0.59 W/(m²K) reference window
Profile	A / Decco 83
Sound	Wide IGU capable
Opening	Tilt-and-turn

Kowalski lists Uw = 0.59 W/m²K on the reference window with warm-edge glazing.

Source: https://kowalskiokna.pl/strony/window/decco-83-premium-3/