Brewer Aspirotor Anti-Downdraught Chimney Cowl – Wind-Powered Downdraught Prevention
Manufacturer/Brand: Brewer Cowls
SKU:MODEL150/PLAIN
In stock
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The Aspirotor Anti-Downdraught Chimney Cowl is an effective solution for preventing smoke and fumes from being blown back down your chimney. Designed to harness wind power, its rotating turbine increases suction, ensuring efficient smoke and fume exhaust. Ideal for use with gas, oil, coal, and wood-burning appliances (up to 250°C), this high-performance cowl helps maintain proper flue function, even in high winds up to 90mph.
Key Features:
- Powerful Anti-Downdraught Design – Wind-driven rotation increases chimney suction for better flue performance.
- Universal Compatibility – Suitable for gas, oil, coal, and wood-burning systems.
- Premium Construction – The turbine head is made from stainless steel, and the base is crafted from cast aluminium.
Multiple Size Options:
- Model 150 – Fits internal diameters between 115mm to 180mm (4.5” to 7”).
- Model 200 – Fits internal diameters between 180mm to 230mm (7” to 9”).
Adaptable Installation – Designed for round chimney pots but can be fitted to large round, square, or rectangular outlets with optional adaptors.
Weather-Resistant – Available in natural stainless steel or powder-coated finishes in terracotta, buff, or black. Powder-coated models prevent sun glare.
Installation & Compatibility
- Requires only 4mph winds to start rotation.
- Adaptor plates available for metal or plastic flues and ducts, as well as high-wind exposed areas.
- Lead time: Models with adaptor plates typically delivered within 7-10 working days.
For expert advice or help selecting the right size, contact our sales team today!









Additional Information for Brewer Aspirotor Anti-Downdraught Chimney Cowl – Wind-Powered Downdraught Prevention
Technical Information
Delivery Information
Delivery Information for Brewer Chimney Cowls
All Brewer Chimney Cowls are shipped directly from the manufacturer to your chosen location.
Mainland UK delivery: Estimated 2–5 working days
Remote areas: Can take up to 7 working days
We strongly recommend that you do not schedule or begin any work until your full order has arrived. This ensures you have everything you need before starting your project.