VLR 70 S

  • Up to 92% heat recovery
  • Decentralised ventilation – suitable for new builds and renovations
  • Supplies fresh air from outside to in your home or office
  • Compact fan ensures easy inspection and maintenance
  • Quiet operation
  • Installed in pairs, connect up to 8 units together
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Product Overview

Create a pleasant indoor environment in the home with the VLR 70 S decentralised heat recovery ventilation.
Installed in pairs with ducting through the walls, the VLR 70 S has a heat recovery level of up to 92%.

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Product Details

The VLR 70S decentralised ventilation unit with heat recovery is used for ventilating apartments and small commercial properties.

Convenience features

  • Contemporary design with a separate programming unit.
  • The appliance is suitable for living spaces and commercial premises up to approx. 100 m2.
  • Thanks to the axial fan that can overcome back-pressure, use in locations exposed to the wind is possible.
  • The appliance is equipped with an efficient heat exchanger made of aluminium.
  • The stainless steel, powder-coated external hood is watertight against heavy rain
  • The VLR 70S features a straightforward filter replacement with an easy-to-remove fan unit.
  • Fine dust (F7) filters are available as accessories.

EC fan ensures efficient operation.


  • The unit is installed in a round or square wall outlet
  • The easily accessible mains connection is located on the inside of the fan unit.

Technical Data

Model number VLR 70 S Trend
Power consumption 7 W
Rated voltage 24 V
Max. current 0.3 A
Air volume flow 20-70 m3/h
Filter class ePM1 ≥ 50 % (F7) | ISO Coarse > 30 % (G2)
Min. outlet aperture diameter 200 mm
Wall thickness 100 - 300 mm
Sound power level 35 dB(A) at 20 m3/h
Height 285 mm
Width 360 mm
Depth 590 mm
Weight 5.2 kg


File Category Type Download
VLR 70 S Data SheetData SheetPDF
639.90 kB
VLR 70 S Operation and Installation GuideOperation and Installation GuidePDF
6.01 MB
Heat Recovery Ventilation WarrantyWarrantyPDF
124.48 kB


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