Zehnder ComfoAir Q 450 Heat Recovery System

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Zehnder ComfoAir Q 450 Heat Recovery System

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From €4,491.94 €3,743.28

To €4,887.44 €4,072.87

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    Total €4,491.94 €3,743.28

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    Further Information

    Key Features

    • Standard or preheater models available
    • Suitable for house sizes up to 240m2
    • Provides up to 88% heat recovery efficiency
    • 2 x G4 filters
    • Passive House certified
    • Counter flow heat exchanger
    • A+ energy efficiency
    • Left or right-hand configuration via the unit’s software


    Zehnder ComfoAir Q 450 Heat Recovery Unit

    Product Pat Number

    Zehnder Q450 (450m3/h 200Pa) Standard Model - 471502019

    Zehnder Q450 (450m3/h 200Pa) Pre Heater Model (RH) - 471502020


    Zehnder ComfoAir Q is the new generation of ventilation units that are more efficient, even quieter and more intelligent. Zehnder ComfoAir Q provides outstanding comfort for a perfect indoor climate with maximum energy efficiency

    Zehnder ComfoAir Q 450 is a Passive House approved unit that provides up to 88% heat recovery efficiency and is suitable for house sizes up to 240m2.

    Technical features

    • EC motors
    • Airflow rate @ 100Pa - 400 m3h/r
    • 4 Variable speed flow rate set points
    • 100% full summer bypass
    • Sound level @3m – 28 dB(A)
    • Dimensions W x H x D - 725mm x 850mm x 570mm
    • Weight - 50kg
    • Duct diameter internal - 180mm
    • Controllability: This unit can be controlled via ComfoSense LCD Controller, ComfoConnect LAN application interface or ComfoConnect KNX Building management interface
    • Installation: Suitable for vertical wall mounting or floor stand with the ability to allow left or right-hand configuration through the unit’s software
    • Construction: This unit is constructed of powder coated sheet steel and is fully insulated using high quality EPP to maintain excellent thermal features


    Technical Specification

    Technical Drawing

    Technical Specification


    Zehnder ComfoAir Q450

    Heat Recovery efficiency %


    Digital Controller


    Boost Switch control


    Interactive control


    Humidity control


    Airflow rate Max m3/h


    Airflow rate @ 100Pa


    Max dwelling size M2 @.3 ACH


    Max dwelling size M2 @.5 ACH


    Max room extraction

    Kitchen plus 7 extraction points

    Specific fan power (lowest)


    Dimensions W x H x D (mm)

    725 x 850 x 570




    G4, optional F7

    Summer Bypass 


    Frost protection 


    Sound level @3m db.(a)



    Floor / wall

    Ductwork connections


    Duct Diameter

    4 x 180mm

    Condensate drain



    2 years

    Country of manufacture


    Heat exchanger

    Counterflow heat exchanger

    Available room sensors


    BMS - KNX


    SAP Appendix Q


    Fireplace mode


    Alarm system integration


    Passive House


    ERP rating



    BPC have years of experience in delivering equipment around the UK and other Worldwide destinations. Our dedicated dispatch team work hard to ensure the highest standards are met so that your goods arrive on-time and in pristine condition.

    Our market knowledge and experience allow us to match our service to meet your requirements swiftly and safely.

    Free Delivery

    We offer free delivery on any order over £250 to any mainland UK or Ireland address  

    Worldwide Delivery

    Worldwide delivery is possible on almost all our products at low costs, delivery to countries outside the EU are normally delivered to the nearest customs office, port or terminal for the purchaser to collect and complete custom clearance.

    Please contact us to confirm shipping cost and availability.  

    End-To-End Support Delivery is available within 48-72 hrs, depending on method of transport, for hundreds of stock items.

    Customers receiving a pallet delivery will be emailed on day of dispatch advising of delivery date. Parcel deliveries will be notified via email or SMS directly from DPD.

    These checks are part of a unique commitment to building relationships with customers, understanding their specific delivery needs and responding to them positively and promptly.  

    We deliver on Service

    Key components such as ductwork and fittings plus the most popular selling MVHR units are kept in stock in our UK-based warehouse, which means that you receive the best possible delivery dates.

    All goods are expertly packed by a professional team so that your equipment is received in pristine condition ready for installation.

    All deliveries co-ordinated to suit your specific requirements and construction programme.

    Delivery Partners

    We only use the couriers with the highest standard of service that include

    • Fastway
    • DPD
    • Montgomery Transport
    • Liam Connolly Roadfreight Ltd
    • Europa Worldwide


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    Installation Service

    If you would like to learn more about our installation service, please contact us:

    Call us on 028 28 275 150 or click below to contact us online

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    Distributors for the worlds leading ventilation manufacturers

    We are distributors and stockists of the leading ventilation products