This external wall cowl is designed for use with single-room heat recovery ventilation systems installed in thin walls or SIP panels. It provides a durable, weatherproof termination that supports efficient system performance while protecting the installation from external conditions.
Suitable for wall thicknesses from 150mm to 500mm, it enables seamless integration of decentralised heat recovery ventilation units where standard wall depths are limited. Its robust metal construction and practical design make it suitable for professional residential and refurbishment projects.
The external cowl is compatible with Duo-Air, Maxi-Air, Midi-Air and Mini-Air heat recovery systems, offering flexibility across a range of ventilation installations.
Manufactured from white powder-coated stainless steel, it is designed for long-term durability and resistance to weather exposure. The two-part construction simplifies installation and ongoing maintenance, while the removable hood allows convenient access for cleaning.
For Duo-Air applications, the integrated airflow splitter separates intake and extract air streams. Both airflow paths are directed horizontally through louvred vents on either side of the unit, helping to prevent cross-contamination.
The weatherproof design helps maintain the efficiency of heat recovery ventilation systems by protecting external wall penetrations from the elements. Its durable construction supports reliable long-term performance in residential ventilation applications.
The integrated drip tray directs condensated water away from walls and windows, helping to protect surrounding building fabric. Easy access for maintenance and cleaning supports ongoing system reliability and reduces servicing complexity.
By providing effective airflow management and separation where required, the cowl supports efficient ventilation performance and contributes to healthier indoor environments.
This external wall cowl is intended for use with single-room heat recovery ventilation installations in properties where wall depths are limited. It is particularly suitable for thin wall constructions and SIP panel installations.
It can be used in residential developments, refurbishment projects, social housing schemes and other applications requiring a professional heat recovery ventilation solution with a secure and weather-resistant external finish.
The cowl is designed for compatibility with Duo-Air, Maxi-Air, Midi-Air and Mini-Air heat recovery systems. For Duo-Air installations, the airflow splitter separates intake and extract airflow, directing both streams horizontally through louvred vents positioned on either side of the vent.
The assembly includes a removable hood and a small drip tray to assist with maintenance access and condensate control. The external mounting arrangement provides a weatherproof termination for heat recovery ventilation systems installed in walls between 150mm and 500mm thick.