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Merlin Ventilator

Merlin Ventilator

The Zefyr “Merlin” ventilator is specifically designed for fire ventilation that can be either wall or roof mounted. The Merlin is an operable louvered ventilation system and its main purpose is to exhaust smoke. 

The “Merlin” ventilator has excellent day lighting characteristics obtained using durable, tough and UV light resistant triple wall polycarbonate material. Polycarbonate also retains its physical properties of strength and impact resistance down to extremely low and up to high temperatures. The body and blades of the ventilator can be manufactured with integrated aluminium foil-faced rigid foam to give a U value of 0.6W/m2C. The “Merlin” ventilation units are designed and tested to meet the requirements laid down in current codes of practice. Fire tests have been carried out at a leading UK Fire Research Centre in accordance with BS 7346: Part 1 1990. Climatic performance testing, in accordance with CP3: chapter V: Part 2. The smoke ventilation units’ meet the snow load requirements as laid down in BS 6399: Part 3. 1990. Rain and wind penetration tests have been carried out using Zefyr’s own laboratory facilities which include an outside weathering rig, vacuum rig and aerodynamic test chamber designed by Loughborough University department of technology. All testing has been carried out in accordance with BS 7346: Part 1 1990.As an optional extra the ventilator can have actuator systems (manual, pneumatic or electrical operation), bird guards, burglar guards, fusible link shields, closure flashings and windshields.

The ventilators are easy to install pre-fabricated, fully tested and available in multiple sized modules. Heights from 885mm to 3485mm. Widths from 1100mm to 3405mm. The units are fully weather proof and designed to have a long maintenance-free life under the most arduous of conditions. Available in aluminium or steel that can have a range of finishes applied to help maintain high quality aesthetics (mill finished, galvanised, stainless, PPC, acrylic, PVF2 coated, plastisol or versacor).
Data Sheets
Technical Data for Zefyr Natural Ventilator product - Merlin and Swift Ventilators; Mounting (Wall or Roof), Installation, Dimensions, Weights, Materials, Finishes, Insulation and Actuator Systems
Case Studies
Job 478 - Accommodation
Vertical Solar Shading (Brise Soleil) / Balconies / Windows / Doors / Merlin Ventilators

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Zefyr’s natural ventilation brochure shows "Natural Ventilators" and "Industrial Louvres" in more detail and how they are beneficial to industrial building and factories.
Zefyr's product brochure catalogues the comprehensive range of products that Zefyr have to offer, giving a brief desiccation of each product with visuals.