Cowls designed especially for smoke ducts - unique construction makes it extremely durable against temperature.
Self-adjusting chimney cowl Rotowent DRAGON is a device, which, in a dynamic way, uses the force of the wind to increase chimney draught. The cap always places itself in the opposite direction to the wind no matter of its strength or direction. It is to be mounted on gravitation based chimney ducts endings: ventilation, flue (gas, oil) and smoke. Thanks to the special, patented, rotating system with ball bearings placed outside the cap, it can withstand very high temperatures, that occur when using a wood or coal burning stoves.