VLR 70 S / VLR 70 L

  • Up to 92% heat recovery
  • Decentralised ventilation – easy installation for new or existing buildings
  • Supplies fresh air from outside into your home or office
  • Prevents the growth of mould with improved air ventilation
  • Hygienic aluminium heat exchanger
  • Quiet operation
  • Installed in pairs, connect up to 8 units together
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Product Overview

Sensitive Choice Product
Sensitive Choice Product

This appliance has been independently reviewed by the National Asthma Council Australia.
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Create a pleasant indoor environment in the home with the VLR 70 decentralised heat recovery ventilation.
Installed in pairs with ducting through the walls, the VLR 70 has a heat recovery level of up to 92%.

Product Details

The VLR 70 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 70 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 VLR 70 L
Max. power consumption (8 units) 92 W 92 W
Connection 1/N 100-240 V 50/60 Hz 1/N 100-240 V 50/60 Hz
Max. current (8 units) 3.8 A 3.8 A
Air volume flow 10-70 m3/h 10-70 m3/h
Filter class ePM1 ≥ 50 % (F7) | ISO Coarse > 30 % (G2) ePM1 ≥ 50 % (F7) | ISO Coarse > 30 % (G2)
Min. outlet aperture ø 200 mm
square 185 x 185
ø 200 mm
square 185 x 185
Wall thickness 100 - 300 mm 300 - 550 mm
Sound power level 35 dB(A) at 20 m3/h 35 dB(A) at 20 m3/h
Height 285 mm 285 mm
Width 360 mm 360 mm
Depth 590 mm 780 mm
Weight 5.2 kg 5.2 kg


File Category Type Download
VLR 70 S Data SheetData SheetPDF
228.29 kB
VLR 70 S Operation and Installation GuideOperation and Installation GuidePDF
6.10 MB
Heat Recovery Ventilation WarrantyWarrantyPDF
176.06 kB
STIEBEL ELTRON Ventilation Brochure BrochurePDF
1.16 MB
Ventilation Commissioning FormCommissioningPDF
172.58 kB


Can the VLR 70 S be installed in apartments?

Yes, the VLR is ideal ventilation system for apartments as it can be installed by retrofit/renovation in existing buildings. Installing a ventilation system can prevent the build up of condensation and mould.

Will the VLR 70 S reduce condensation and prevent mould?

Yes, the VLR will reduce humidity through improved ventilation, preventing the build up of condensation and mould. Read more about mould here.

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