Chimney cap,chimney cowl,Chimney Spinner Cowl Stainless Steel,Rotating Chimney Cowl, Chimney Cowl with Rotating Cap Ventilation Pipefit,Vent Cowl Rotating Spinner，for Flue Top Exhaust (Size : 150mm/5.

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**Unpowered roof vent：The hat is designed to rotate with the action of the wind, so that the more the wind blows, the more the blades rotate, and the more powerful the air intake from the inside to the outside.the rings of this chimney cowl are specially designed and placed one over the other in a way that the wind cannot go down the chinmey, thus making this cap a prefect anti downdraught solution. **Prevent the retraction of the exhaust gas, facilitate the suction, improve the combustion and protect the chimney from external influences such as rain or snow. It can prevent strong wind from penetrating in pipes, chimneys, stoves, etc., thereby avoiding the adverse effects of houses. **Stainless Steel Material：Thick 304 Stainless Steel Rotating Chimney Cowl Cap，Chimney spinner cowl made of stainless steel,thickened fixed feet construction,more strong stability and durability.Protect your chimney from rain and moisture, which is especially suitable for chimneys that are not used frequently.Stainless steel construction Thickened fixed feet; include complete fixing kit. **No Noise and Rainproof：Made of stainless steel, it is strong enough to withstand 200km/h wind speed and 100KG load without damage and deformation.stainless steel chimney cap is very effective windproof and increased ventilation. There is no noise when the roof ventilation fan rotates. If you have any questions, please do not hesitate to contact us. Thank you for coming, wish you a happy life！