Greenwood | Low Energy Bathroom Fan, Heat Recovery System, Whole House Ventilation

HD Vent

Slotvent
HD Vent is a shutter style slotvent offering high equivalent area performances from two models and is available in a range of colours. Front operation only.
Features & Benefits
Performance
Models & Control Options
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Features and Benefits

 

The HD Vent is a shutter style Slotvent, designed to provide background ventilation in line with current Building Regulation performance as set out in ADF 2010.  Available in a range of colours, two sizes provide up to 6800mm² equivalent area airflow performance.

 

Key Stats;

  • Two models available in four configurations for window profile and over-frame installation applications

 

  • For window profiles; 2 models offering 3200 and 6400mm² Equivalent Area (England & Wales)

 

  • For overframe; 2 models offering 3400 and 6800mm² Equivalent Area (England & Wales)

 

  • 4000 and 8000mm² Free Area (Scotland)

 

  • Designed to deflect air upwards when open to eliminate issues with draughts when the Slotvent is installed

 

  • High performing external louvered grille which offer excellent weather protection is provided as external component

 

  • Recessed flyscreens provided for over-frame installations

 

  • Front operation

 

  • Available in white, brown and brilliant white - RAL colours available on request

 

  • Fully accredited and tested
    The HD Vent has been independently tested at a third party accredited test house to all of the current British Standards.  Please see performance tab for full air permeability, Watertightness, noise and equivalent area performance information. 
Performance

Models & Control Options

Physical Specification
Product code  4000HDF  8000HDF  4000HDFF 8000HDFF 
Configuration

HD Internal &

HEG Grille 

HD Internal &

HEG Grille

HD Internal &

AEF Flyscreen 

 HD Internal &

AEF Flyscreen 

Equivalent

(mm2

 3200 6400  3400  6800 

 Dimensions

(mm) l x h x d

 278 x 28.5 x 13 560 x 28.5 x 13  278 x 28.5 x 13  560 x 28.5 x 13 

 Slot height

(mm)

18  18  18  18 

 Slot size (mm)

Length - Central gap - Length

235   235 - 20 - 235 235   235 - 20 - 235 
 Control  F F F
 Colour  W, B, BW   W, B, BW  W, B, BW   W, B, BW 

Scottish Building Regulations: Free Area Performance (see page 9 for full details). 4000HDF/HDFF = 4000mm², 8000HDF/HDFF = 8000mm². Control: Front (F). Colour: White (W), Brilliant White (BW), Brown (B).

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