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Antiwind cowl - Ø 250 (3-250-091)

National Flues presents the Antiwind Cowl Ø 250, a robust chimney flue accessory designed to offer superior wind protection and performance. Perfectly suited for commercial flue systems, this product is an essential component for ensuring safe and efficient evacuation of flue gases in diverse applications. As a trusted brand in the industry, National Flues guarantees quality and reliability with this high-performance, antiwind cowl. Discover how this chimney flue terminal can transform your heating system with enhanced efficiency and safety.
Now only £193.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.

 

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At a Glance

    High-grade 316L stainless steel construction

    Superior wind protection to ensure reliable flue performance

    Suitable for both condensing and non-condensing applications

    Push-fit jointing system with secure locking mechanism

    CE marked and compliant with EN 1856-1 standards

    Versatility for boilers, ovens, and ventilation systems

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 8th. This is based on current lead times for this product. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. We can sometimes reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

Warranty & Returns +

All our products come with warranties and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Best Price Match Guarantee +

We will match any price, like-for-like, on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

We Won't Be Beaten On Price

At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:

  • Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
  • Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
  • Operational Efficiency: We have streamlined processes to reduce overhead.

Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).

“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.

Have Questions?
Phone: 01670 206999
Email: [email protected]

The Antiwind Cowl Ø 250 is a robust and efficient solution for managing chimney flue gases under various conditions. Made from high-grade 316L stainless steel, this cowl is designed to withstand both high and low temperatures and is suitable for non-condensing and condensing applications. The SWPro flue system, featuring a high-pressure sealing gasket P1/H1, ensures secure and leak-free performance even in positive and negative pressure environments.

Ideal for installations in boilers, ovens, ventilation systems, and as a chimney shaft liner, the cowl excels in versatility and reliability. CE marked and in compliance with EN 1856-1 standards, it incorporates a push-fit jointing system that is easy to install and maintain, with a recommendation to keep a distance of 50mm from any combustible materials.

SKU: 3-250-091

Technical Specifications
Material316L Stainless Steel
ApplicationBoilers, Ovens, Ventilation Systems
Temperature RangeHigh and Low Temperatures
ComplianceCE, EN 1856-1
InstallationPush-fit Jointing System
ClearanceMinimum 50mm from Combustible Materials
SystemSWPro
Warranty10 Years
The Antiwind Cowl Ø 250 is designed for intuitive installation. Begin by ensuring all surfaces and connections are clean. Fit the cowl into position using the push-fit jointing system, ensuring that each joint is secured firmly with the provided high-pressure sealing gasket. For P1 and H1 installations, always fit a jointing gasket on every connection to guarantee a leak-free, secure setup. It is imperative to maintain a minimum clearance of 50mm from any combustible materials such as wood or plasterboard to reduce fire risk. Throughout the installation, refer to the manufacturer’s guidelines for detailed instructions and safety precautions. If any questions arise during the process, consult with a certified installer or contact National Flues for expert advice.

The cowl is manufactured from high-grade 316L stainless steel, known for its durability and resistance to corrosion.

Yes, it is suitable for a wide range of temperatures, making it versatile for various applications including boilers and ovens.

The cowl is CE marked and complies with EN 1856-1 standards, ensuring high safety and quality.

The cowl uses a push-fit jointing system secured with a locking band. For P1 and H1 installations, jointing gaskets should be fitted on every joint to ensure a secure fit.

Yes, the cowl is suitable for both condensing and non-condensing applications, ensuring broad usability.

A minimum distance of 50mm must be maintained from combustible materials such as wood and plasterboard.

Both retail and trade customers who require a reliable and efficient flue system for various commercial applications can benefit from this product.

What our experts say!

"At National Flues, the Antiwind Cowl Ø 250 stands out for its exceptional build quality and wind protection features. Perfect for diverse applications, this cowl reinforces our commitment to reliable delivery and affordability for both retail and trade customers nationwide."

The Antiwind Cowl Ø 250 is designed to protect chimney flues from adverse wind effects and to ensure safe evacuation of flue gases, enhancing the performance of boilers, ovens, and ventilation systems.

National Flues is a trusted UK supplier of fireplaces and flues, known for unbeatable prices and reliable nationwide delivery. Serving both retail and trade customers, they offer secure online payments and flexible trade accounts.

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