Zehnder ComfoAir 350 MVHR unit

Passivhaus-certified Zehnder MVHR unit specifically designed for residential dwellings up to 150m2

For advice on which MVHR unit is best for your project, please contact our MVHR Design service

  • Designed specifically for residential dwellings up to 150m2 (2010 Building Regulations)
  • Low energy consumption thanks to EC motors
  • Automatic 100% filtered bypass
  • The insulating, sound-absorbing ducting connections can be rotated individually to simplify the installation
  • High specification PCB featuring 4 x 10v inputs for greater system control
  • Can be mounted either on the wall or free-standing oan the optional assembly base
  • Suitable for use with the optional ComfoFond-L Eco sub-soil heat exchanger or ComfoCool custom designed cooling unit
  • Input available for the connection of a post-heater which can be activated without the need for a separate controller
  • Air flow rates of 71–293m3/h
  • Heat recovery efficiency of 84%
  • Electric power consumption at 100Pa of 0.29 Wh/m3
  • Maximum power consumption with pre-heater of 1051W
  • Airtightness and insulation
    • Internal leakage at 1.5%
    • External leakage at 1.9%

Acoustic data

The following sound power levels were determined at an air flow rate of 290 m3/h

dB(A) at unit dB(A) at intake dB(A) at supply dB(A) at extract dB(A) at exhaust
54.1 50.1 63.8 50.2 61.4
Title Type
Green Building Store MVHR heat recovery ventilation brochure Brochure Download
Passivhaus certificate ComfoAir 350 Luxe Certification Download
Zehnder-ComfoAir-350-datasheet Datasheets Download
ComfoAir 350 LUXE - Manual Care & maintenance Download
ComfoAir 350 Luxe Installer Manual Care & maintenance Download



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