Features and Usage


Listed building renovations and replica
refurbishment projects where planning
constraints should be considered. Designed
to be built as a series of horizontal modules
which can be stacked using couplers to
form a multi-part window.


  • Polyamide thermal break provides enhanced thermal performance
  • Designed as a direct replacement for steel windows
  • Will achieve U Values under 1.5w/m²K when used in conjunction with correct double glazed sealed unit
  • Alitherm Heritage windows achieve a Window Energy ‘B’ Rating
  • Available in single or dual colour polyester powder coat as standard.


  • Frame Depth: 47mm
  • Glass (double/triple glazed)
  • SH Vent Max o/a width 700mm
  • SH Vent Min o/a width 300mm
  • SH Vent Max o/a height 1400mm
  • Maximum Vent weight 40kg
  • TH Vent Max o/a width 1400mm
  • TH Vent Max o/a height 1300mm
  • TH Vent Min o/a height 275mm
  • Maximum Vent weight 35kg

Benefits and Options

Window Energy Rating (WER) B

Water Class 9A, 600PA

Air Class 4, 600PA

PAS: 24:2012

Document L Compliant

1.5W/M2K using correct sealed unit

Wind Class AE, 2400PA

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Request A Quote

Please Note: When ordering / requesting quotations from Nova Aluminium systems, all drawings / sketches provided are based on an external view. All sizes given are to be Manufacture sizes (To long leg for any odd leg frames) and must be inclusive of any cills or add-ons required. Prices provided by Nova are for supply only, and all products are unglazed unless otherwise stated. If there are any queries, please state on this form or speak to a member of the sales team.
Click or drag a file to this area to upload.
If you have a sketch of your requirements please upload here (max file size 5mb, accepted files: jpegs, pngs, pdfs and word docs)
(Width x Height (Millimetres))


System Options