WNVXJGNSO 304 Stainless Steel Roof Turbine Ventilator, No Assembly Required, Rainproof, Rotating Chimney Cowl Caps, for Roof Vents Chimney Fireplace Bathroom Kitchen Garage (100mm/3.9in)

WNVXJGNSO

Protects your fireplace and chimney: The top of your fireplace can withstand weather changes, ensure steady ventilation in adverse winds, prevent exhaust backflow, promote exhaust effectiveness and improve combustion. It also keeps your chimney flue from critters, birds, rain, snow, leaves, debris, etc. Keeps the room well ventilated: The rotary turbine can also be installed on roofs, sunrooms and other areas with poor air circulation. Equipped with a durable ball bearing base, only a small amount of wind is needed to make it rotate automatically, and it is silent when rotating. No power supply is required to keep fresh air in the room and keep the room ventilated around the clock. 304 Stainless Steel: Choose the size according to the outside diameter of your chimney. Our chimney caps are made of high quality 304 stainless steel, which is water and heat resistant. With its sturdy design, there is no need to worry about frame deformation. So no matter how bad the weather, it will last for years to come outdoors, saving you replacement costs. Roof turbine works: Using natural wind and thermal convection of air caused by the difference between indoor and outdoor temperatures, it pushes the turbine to rotate, using centrifugal force and negative pressure effect to continuously exhaust unfresh indoor air. 100% customer satisfaction is the goal of our efforts. If you encounter any problems, please send us an email. Easy to install: Supplied fully assembled and ready for installation. Easy installation by one person, saving time and effort. Create a sense of security for your friends, family and yourself. Roof turbines are very effective at preventing downdraft and increasing ventilation; equipped with clamps to se to smaller diameter ducts.