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Passive windows

The ideal solution for enhanced, natural ventilation solutions, particularly suitable for a range of passive and low-energy houses and applications.

Comfort Optimo L
Comfort Optimo L
The COMFORT OPTIMO L window combines wood and aluminium to create the optimal mix of high energy efficiency, attractive appearance and affordable price. This is a basic window type from the Comfort Optimo family, with aligned aluminium on the outer face of the window.
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Comfort Optimo XL
Comfort Optimo XL
The COMFORT OPTIMO XL window combines wood and aluminium to create the optimal mix of high energy efficiency, attractive appearance and affordable price. It represents an upgrade of the Comfort Optimo L with an additional aligned window profile on the inner face of the window. *L (Line) and X (eXclusive)
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Comfort Optimo XLS
Comfort Optimo XLS
The COMFORT OPTIMO XLS window combines wood and aluminium to create the optimal mix of high energy efficiency, attractive appearance and affordable price.
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Comfort Ultimo
Comfort Ultimo
The COMFORT ULTIMO window combines wood and aluminium to create the optimal mix of high energy efficiency, attractive appearance and affordable price.
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Nature Optimo
Nature Optimo
The NATURE OPTIMO window is made entirely of wood to create the optimal combination of high energy efficiency, beauty and affordability. It is a basic, popular window type from the Optimo family.
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Nature Optimo XL
Nature Optimo XL
Window 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).
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Nature Optimo XLT
Nature Optimo XLT
The NATURE OPTIMO XLT window is a special type of window from the Optimo family. It is made of thermally modified spruce and is officially certified as passive window. It is made entirely of wood, boasts an attractive, exotic look and outstanding energy efficiency (thermal transmittance of window (Uw ≥ 0.66 W/m2K), bringing real added value). It is actually the world’s most cost-effective PHI-certified passive timber window. The window is especially attractive due to the aligned frame and casement. * XLT = L (Line), X (Xclusive), T (Thermally modified spruce)
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Comfort Passive
Comfort Passive
The COMFORT PASSIVE window combines the positive features of two quality materials. The wooden part on the outer window face is joined with aluminum for better durability, appearance and energy efficiency. The additional third pane further reinforces all of these excellent qualities.
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Nature Passive
Nature Passive
The NATURE PASSIVE window represents an effective factor in our effort to save energy. Energy savings and sound insulation were top priorities when designing and developing this window. Alongside the superb insulation qualities the window manages to maintain other superior features, from contemporary design to brilliant finishing touches.
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References
References
M SORA catalogues
M SORA catalogues