Tunal 65 HD

Tunal 65 HD is a thermal aluminum in-ceiling diffuser for use in all types of window joinery made of wood, Alu and PVC. It is used in composite packages with a thickness of 24 and 28mm.


  • When the position is open, the air level is delivered
  • In closed mode – full thermal break
  • When closed, ensures full tightness
  • Easy maintenance thanks to removable inner grille
  • Protection against insects


  1. Thermal profile
  2. Adjustment in 5 positions
  3. Gasket for permanent connection of the diffuser with the glazing unit
  4. For use with different thick packets

Technical parameters

Air flow Q bij 1 Pa 11,7 dm³/s/m
Air flow q1 bij 2 Pa 65 m³/h/m
Air flow q1 bij 10 Pa 147 m³/h/m
L0 bij 2 Pa (1) 0,04 m
L0 bij 10 Pa (1) 0,04 m
Navigability 5 positions
Adjustable and automatic NO
U-permeability 3,67 W/m².K
Acoustic insulation Dn, e, w (C, Ctr) in the open position 27 (0;-1) dB
Protection against insects fulfills
Water tightness – in the closed position 750 Pa
Water tightness – in the open position fulfills
Leak in closed position at 50 Pa <15%
Surface 0,065 m²/m
Dimension of glass reduction 65 mm
Height 81 mm
Thickness of composite glass 24 – 28 mm (with EPDM gasket) / 32 mm (with silicone gasket)
The maximum size subject to the guarantee 3500 mm
KOMO-attest YES



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