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Nature Optimo XL

m-sora-nature-optimo-xl-windowWindow NATURE OPTIMO XL is made entirely of wood and combines optimal combination of high energy efficiency, attractive appearance and affordable price. It is the most thermally efficient window of Nature Optimo family, which can be upgraded into passive window with the use of thermally modified spruce instead of normal spruce – NATURE OPTIMO XLT which was awarded as world most cost effective PHI certified passive timber window. Window has very nice outlook due to aligned frame and casement which is represented by letters L (»Line«) and X (»Xclusive«).

aligned casement and frame on inner and outer side of the window
thickness of window casement and frame 110 mm
hidden hinges
produced with the newest computer controlled technology bought in 2014

modern design
suitable for low-energy and passive buildings
warm feeling
excellent water and airtightness
long life time

Resistance to wind load (EN 12210): Class 5 (single casement) / C3 (double casement)
Watertightness (EN 12208): Class E1200 (single and double casement)
Air permeability (EN 12207): Class 4 (single and double casement)

Window thermal transmittance
Certificate- Nature Optimo XL – 0,5
Certificate- Nature Optimo XL – 0,6
Certificate- Nature Optimo XL – 0,7
Use and maintenance instructions

Profile dimensions installation depth 110 mm
visible width 116 mm
Instalation options rectangular
arched, semicircular
Opening options fixed
combined (d and dk)
folding walls
tilt-slide walls
lift-slide walls
opening outwards
two-sided handle
Thermal insulation of the window (Uw) Ug = 1,1
Ug = 1,0
Ug = 0,7 0,86 W/m²K
Ug = 0,6 0,79 W/m²K
Ug = 0,5 0,71 W/m²K