MVHR Units

Choose from the most efficient and cost-effectiveproducts on the market

You can find a system to suit every build and budget in our vast range of SAP Appendix Q and Passive House accredited heat recovery ventilation units. 

Our MVHR units are designed for vertical or horizontal installation and can be wall or ceiling mounted within a loft void or designated control room. Ideal for residential applications from a single room to a multi-storey property, our systems run silently.

View the control options available to your clients today. 

vent-axis unit 1


• Recognised in SAP PCDB
• Touch screen controller
• Lightweight for easier installation
• 100% Summer bypass
• WiFi connectivity option
• Wireless commissioning
• Pre-commissioning via USB
• App control option
• Left/Right handing through the controller
• Pre-heater option for cold climates
• Post-heater control option
• Developed and manufactured in the UK
• G3, M5 and F7 filter options

vent-axis unit 2


• Recognised in SAP PCDB
• Ultra quiet
• Lightweight for easier installation
• Horizontal duct option for space-saving installations
• Fits within a 290mm deep kitchen cupboard (V and B Models)
• Integrated digital controller for simple and accurate commissioning
• Plug and play controls; Humidistat, Ventwise, Wireless Remote
• BMS connectivity
• LS inputs (Light Switch)
• Volt-free inputs
• Self diagnosis for simplified fault finding
• Adjustable delay On/delay Off timer

Zehnder ComfoAir 550 unit

Zehnder ComfoAir 550

  • Comfort ventilation for dutys up to 550 m³/h
  • Heat recovery with an efficiency of up to 95%
  • Moisture recovery with the Zehnder enthalpy exchanger (optional)
  • Low power consumption thanks to EC direct current motors
  • Automatic 100% summer bypass
  • Infinitely variable frost protection function: efficient even at low temperatures
  • Quick, safe installation and servicing
  • Simple operation
  • Integrated preheater (optional)
  • Integrated controller for brine geothermal heat exchanger
  • Wireless remote control available
  • Digital Ease or Luxe control unit
  • With weekly timer as standard
  • 'Open Fire' programme for properties with chimneys
  • Passivhaus Institut accredited

Zehnder comfoair Q600 ST

Zehnder ComfoAir Q600 ST

  • Comfort ventilation unit with air volume of up to 600 m3/h at 200 Pa
  • Left or right hand unit configuration combined in one device, providing installation flexibility
  • Simple and quick installation
  • Commissioning wizard and intuitive device display for simple commissioning in three steps
  • New diamond heat exchanger with larger surface area for higher heat recovery and less air resistance ensuring lower energy consumption
  • Latest fan technology for quiet and energy-efficient operation
  • Innovative air volume balancing for maximum heat recovery
  • Adaptive pre-heater for intelligent temperature control of the drawn-in outdoor air for the best possible energy efficiency
  • Easy operation from switch to app and remote monitoring
  • Combination with ComfoCool Q air tempering unit possible
  • Combination with ComfoCool Q possible