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Alitherm Heritage 47

logo_smartsAlitherm Heritage 47 has been designed to offer a modern solution for heritage and renovations applications where the requirement to replace old steel windows is essential.



Inspired by the aesthetics of traditional steel windows, Alitherm Heritage 47 features signature slim sightlines and attractive contours making it the ideal choice for heritage building conservation areas where building regulations demand a like-for-like replacement.

All main profiles feature polyamide thermal break technology that enhances the thermal performance of the product, allowing Alitherm Heritage 47 windows to achieve a window energy rating ‘A’ grade when fabricated with the correct specification and glazed unit. Profiles have a high quality powder coated paint finish at Smart’s state of the art paint facility in a choice of finishes, including single or dual colour, in a range of standard and non-standard colours.

Design Applications

Windows: fixed windows, side hung & top hung open out casements
Doors: single or double open out balcony doors


Window Energy Rating ‘A’ – when using correct profile, glass unit & spacer bar
Thermal performance
1.5 W/m²K with 1.0 centre pane
1.2 W/m²K with 0.7 centre pane
Method of fabrication: corner crimping
Glazing options 24mm to 32mm
Tape or gasket glazed
Multipoint locking for both window and door
Attractive choice of window furniture – ‘monkey tail’ or ‘bulb end’ handles and peg stays


Product Type Windows
Material Aluminium Ployamide
Dual Colour
NBS available



Thermal Suitability
Min Glazing
Max Glazing


Locking Options



Building Suitability