Rotating Chimney Cowl Ventilator Turbine 304 Stainless Steel Roof Vent Pipes Chimney Caps Weatherproof Robust and Durable for Chimney Fireplace Storehouse Easy to Install (110mm/4.3in)

The top of the fireplace can withstand weather changes, ensure stable ventilation in unfavorable winds, prevent backflow of exhaust gases, promote exhaust effectiveness and improve combustion. It also keeps your chimney flue free from critters, birds, rain, snow, leaves, debris, etc. Even when not heated, the fireplace can be vented year-round, keeping the interior of the fireplace dry and protected from rain and moisture.Rooftop turbine working principle: Using the natural wind and the thermal convection of air caused by the difference between indoor and outdoor temperatures, it pushes the turbine to rotate and use centrifugal force and negative pressure effect to continuously exhaust the unfresh indoor air.Rooftop Turbine Features :No assembly required, easy to install.No electricity required, saves energy.Improves air inside the fireplace.Maintains indoor ventilation.Improves exhaust value.Prevents sparks from flying.Protects the chimney from external influences such as rain and snow.Resists high temperatures up to 450°C.Product Name: Rotating Chimney CowlMaterial: 304 stainless steelInstallation: Clamp installation, perforated installationWarm Tips.Please pay attention when unpacking and installing. It is recommended to wear gloves to avoid scratching.

• Quality Service: We provide you with quality products and service, and we are happy to help you with any problems you may encounter, so you don't need to worry. 100% customer satisfaction is the goal we strive for. If you encounter any problems, please send us an email.
• Thickened stainless steel material: choose the size according to the outside diameter of your chimney. Our chimney cap is made of high quality 304 stainless steel, which is waterproof, heat resistant and rust resistant. With its sturdy design, there is no need to worry about frame deformation. Therefore, it can be used outdoors for years to come, no matter how bad the weather is, saving you replacement costs.
• Maintain good indoor ventilation: The rotating turbine can be installed on roofs, sunrooms and other places where air does not circulate. Equipped with a durable ball bearing base, it requires only a small amount of wind to make it spin automatically and is silent when spinning. No power supply is required to keep fresh air in the room 24/7 and keep the room ventilated.
• Easy to install: Supplied fully assembled and ready for installation. One person easily completes the installation, saving time and effort. Create a sense of security for your friends, family and yourself. Rooftop ventilators are very effective in preventing downdraft and increasing ventilation; equipped with clamps to secure to smaller diameter ducts.
• Rotatable hood for ventilation ducts, chimneys and extraction: a cap that rotates with the wind. The stronger the wind blows, the more the wings rotate, and the stronger the air is pulled from the inside out. It prevents strong wind penetration into pipes, chimneys, fireplaces, etc., thus avoiding the undesirable effect of a house filled with smoke.