Rotary chimney cowl Centrowent is a device, which in a dynamic way, uses force of the wind to increase chimney draught. The turbine always rotates in the same direction no matter for the wind strength or its direction. It is to be mounted on gravitation based ventilation chimney duct endings.
- No corrosion – collar made of zinc-plated steel and rotor and flange made of stainless steel
- Light weight
- Quiet operation – rotor bearings
- Easy cleaning – rotor fixed to axle with screw
- Logistics – each extension in separate box