Stainless Steel Rotating Chimney Cowl Cap - 800mm Anti-Downdraught Vent Spinner for Chimneys & Exhaust Vents | Durable Weatherproof Design with Fixed Feet | Perfect for Home Roof Ventilation & Industrial Exhaust Systems

Function: High precision, high speed, rainproof, efficient exhaustPrinciple: Using natural wind and air thermal convection caused by the temperature difference between indoor and outdoor to push the turbine to rotate, so as to use centrifugal force and negative pressure to expel stale indoor air.Name: Chimney CoverMaterial: 304 stainless steelSpecification: diameter 300mm-450mm (please refer to the picture for details)Function: rainproof and dustproof, prevent mosquitoes from enteringUse scenarios: industrial plants, farms, residential flues, etc.Power: wind drivenAir volume: Air volume depends on windSmart type: not supportedIntelligent control: NoNote:1. Due to manual measurement, please allow a deviation of 1-5mm. Thank you!2. After receiving the goods, pay attention to the edge of the hat is very sharp, please wear gloves to install, so as not to hurt your hand![Tips]: If you have any questions, you can contact us by email, and we will solve it for you within 24 hours.

304 Thick Stainless Steel Rotating Chimney Cowl Cap Spinner Anti-Downdraught Fits Most Standard Chimney Pots Very effective in preventing wind and increasing ventilation.

Base diameter fits most standard chimney with base diameter will fit standard chimney pots, robust stainless steel construction (Note This product is shipped in bulk, use requires assembly)

Hat 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 is from the inside out.

Rotating hood for ventilation pipes, smoke chimneys, and air extraction.The gairing provides maximum protection without hindering the performance of the chimney.

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