304 Stainless Steel Rotating Chimney Cowl, Roof Vents, Roof Turbine Ventilator, Powered by Wind, Weatherproof, Strong and Durable, Fireplace Chimney Caps, Ventilation Fans (200mm/7.8in)

Sturdy stainless steel construction: choose the size according to the outside diameter of your chimney. Our chimney caps are made of thickened 304 stainless steel, which is water and heat resistant. Sturdy design, no need to worry about frame deformation in bad weather. Can be used outdoors for years to come, saving you replacement costs. How the fireplace cap works: The turbo fan uses the principles of natural wind and air convection to improve indoor ventilation by accelerating parallel airflow into the vertical direction. Warm air rises and cold air falls, causing the fan to rotate, allowing heat, odors to be efficiently discharged from the room. Energy saving, driven by wind, no electricity bill, reducing your expenses. Protects fireplaces and chimneys: Chimney hoods installed on top of fireplaces can withstand weather changes, protect chimneys from rain and moisture, and prevent powerful winds from entering the interior of ducts, chimneys, stoves, etc. to avoid adverse effects on smoky houses. It also keeps your chimney flue free from critters, birds, rain, snow, leaves, debris, etc. Roof vents: Rotary turbines can also be installed on roofs, sunrooms and other areas where air does not circulate. Equipped with a durable ball bearing base, it requires only a small amount of wind to make it rotate automatically and is silent when rotating. No power supply is required to effectively exhaust heat, odors from the room. 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. Roof ventilators are very effective in preventing downdraft and increasing ventilation; equipped with clamps to secure to smaller diameter ducts.