Self-adjusting chimney cowl Rotowent DRAGON is a device, which, in a dynamic way, uses force of the wind to increase chimney draft.
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, which can in wood or coal burning stoves.
Maximal working temperature: 500 [deg C];
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