SENTINEL Cast Iron Black Conservation Vent Grille

Yes. The Sentinel is engineered specifically to ensure modern mechanical ventilation systems (like MVHR and dMEV) comply with Approved Document F. Its deep, discreet cowl and traditional British cast iron construction are designed to satisfy the aesthetic and material requirements typically enforced by Conservation Officers and Planning Departments, eliminating the need for bulky, modern alternatives.Absolutely. Unlike fabricated or lighter-gauge metals that can rust and fail, our Sentinel grilles are British-cast using traditional methods, ensuring a solid construction designed for permanence. The material is meant to develop a rich patina, ensuring a fit-and-forget solution that outlasts the lifetime of the building system it serves, dramatically reducing long-term maintenance costs.The Sentinel is primarily designed as the ideal external termination for VENTI’s high-performance FLUXO (srMVHR) and ARIA (dMEV) systems. Its spigot diameter options (103mm and 148mm) allow it to connect seamlessly with standard ductwork, but it is optimized to provide the perfect balance of free area (airflow) and weather protection for modern active systems.