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TWPro MB - Rotating Cowl - Ø 150 (37-150-094)
National Flues proudly presents the TWPro MB Rotating Cowl - Ø 150, a leading-edge solution for maximising chimney efficiency. Engineered from premium stainless steel materials and incorporating an innovative rotating design to counter down drafts, this product is optimised for modern fireplaces and flues. Whether you use your system for wood, oil, or gas appliances, this cowl is built to deliver robust, safe, and efficient performance. Additionally, if you’re looking for optional accessories to further upgrade your installation, National Flues is your trusted partner in providing high-quality chimney solutions.
In Stock
£287.99
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Versatile performance for solid fuel, gas, and oil appliances Constructed with a 304 stainless steel outer layer (high temperature black coated) and a 316 grade stainless steel inner layer Rotating cover design that effectively reduces chimney down drafts Fully welded structure providing robust and long-lasting durability Dense, compressed rockwool insulation (200kg/m³) for optimal thermal efficiency Safe installation with a mandatory 50mm clearance from combustibles Approved to HETAS and CE standards, ensuring industry-compliant safety
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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.
The TWPro MB Rotating Cowl - Ø 150 is meticulously designed to handle the complexities of modern chimney systems. Suitable for solid fuel, gas, and oil appliances—including woodstoves, gas coal effect fires, oil boilers, and gas boilers—this cowl brings versatility and reliability. Constructed with a 304 stainless steel outer skin, coated with a high-temperature black finish, and a robust 316 grade stainless steel inner skin, it promises longevity and superior performance.
The insulation consists of dense, compressed rockwool (200kg/m3) ensuring optimal thermal protection. This cowl maintains a safe distance of 50mm from any combustible materials and is fully welded for strength. Approved by HETAS and CE marked, this product meets industry standards with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.
Installation is a breeze with the supplied Locking Band, which secures the twin wall insulated chimney parts seamlessly.
SKU: 37-150-094
Technical Specifications
SKU
37-150-094
Product Name
TWPro MB - Rotating Cowl - u00d8 150
Designations
EN1856-1 T600 N1 W V2 L50040 G50 | EN1856-1 T200 P1 W V2 L50040 O20
Outer Material
304 Stainless Steel with High Temperature Black Coating
Inner Material
316 Stainless Steel
Insulation
Dense, compressed rockwool (200kg/mu00b3)
Fuels Suitable
Wood, Oil, Gas, Low sulphur coal
Clearance To Combustibles
50mm
Approvals
HETAS, CE Mark
Installation
Includes a Locking Band for secure assembly
Finish
High temperature black finish
Installation of the TWPro MB Rotating Cowl is straightforward and designed with the user in mind. Begin by ensuring that the chimney system has a clearance of at least 50mm from any combustible materials. The product comes with a Locking Band that securely joins the twin wall insulated chimney sections, simplifying the assembly process. Before installation, verify that all components are in perfect condition and consider checking the optional accessories available such as chimney support brackets or custom liners for tailored setups. Always follow the manufacturer’s guidelines and local building regulations during installation. If uncertain or for complex installations, consult a professional installer to guarantee optimum performance and safety.
Yes, it is designed for use with solid fuel, gas, and oil appliances, making it highly versatile.
The outer layer is made from 304 stainless steel and coated with a high-temperature black finish. The inner layer is made from 316 grade stainless steel.
The rotating cover of the cowl spins with the wind, which helps equalize the outlet velocity and reduce down drafts.
The required distance to combustibles is 50mm to ensure safety.
Yes, the installation is easy with the provided Locking Band that secures the twin wall insulated chimney parts together.
Yes, this product is HETAS approved and CE marked, meeting industry standards.
The designation numbers are EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, May 21st. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call.
If you need faster stove or fireplace delivery please also give us a call.
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. Mi-Flex offers a lifetime guarantee.
Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
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.
Comprehensive Buyers Guide for the TWPro MB Rotating Cowl - Ø 150
When it comes to improving your chimney’s performance, the TWPro MB Rotating Cowl stands out as an innovative and reliable solution. National Flues has meticulously designed this product not only to enhance efficiency but also to provide maximum safety and durability. In this guide, we will take you through key aspects of the product, address common concerns, and offer practical advice on optional accessories to complement your chimney system.
Introduction
The TWPro MB Rotating Cowl is specifically engineered to tackle common issues faced with traditional chimney systems, such as down drafts and heat loss. Its unique rotating feature helps to balance the outlet velocity in windy conditions, ensuring a more stable and efficient flow through your chimney. Manufactured from top-grade stainless steel, the cowl is built to withstand harsh weather and extreme temperatures, making it a suitable choice for various heating appliances including woodstoves, gas boilers, and oil furnaces.
Key Features and Their Benefits
Versatility and Performance:
- The cowl is compatible with multiple fuel types, ensuring that your chimney works efficiently regardless of whether you use wood, oil, or gas. This multi-fuel suitability means you don’t need to invest in different systems for different heating requirements.
Superior Material Quality:
- Constructed with 304 stainless steel for the outer layer and 316 stainless steel for the inner layer, the product is designed to provide longevity and resistance to corrosion. This ensures that your investment in a high-quality chimney system will pay off over many years with minimal need for replacements or repairs.
Innovative Rotating Mechanism:
- The rotating cover of the cowl adjusts optimally with the wind, which balances the chimney’s outlet velocity. This not only prevents downdrafts but also promotes a more consistent and efficient draft, translating to improved overall performance of the heating appliance.
Enhanced Safety Features:
- With a mandated clearance of 50mm from any combustible surfaces, the design prioritises safety. This is especially important in residential settings where maintaining a safe distance from flammable materials is crucial.
Addressing Common Objections
Is it difficult to install?
- Not at all. The TWPro MB Rotating Cowl is designed with the user in mind. Installation is a breeze thanks to the included Locking Band that securely connects the twin wall system. For those who desire additional customisation, optional accessories such as chimney brackets and liners are available to tailor your installation to your specific needs.
What about maintenance and longevity?
- The durable construction materials ensure that the cowl stands the test of time. With minimal maintenance requirements and resistance to weather and corrosion, you can rest assured that your chimney system will operate efficiently season after season.
Are optional accessories really necessary?
- While the cowl performs exceptionally well on its own, exploring optional accessories can provide extra assurance of optimal performance. Consider additional support brackets for enhanced stability or custom liners for environments with unique heating demands. These accessories are available on our website and can be searched for easily, ensuring that you have access to all the components needed for a bespoke chimney solution.
Installation Tips and Additional Accessories
Before Installation:
- Ensure your chimney system is compliant with local building regulations. Check that you have enough clearance (a minimum of 50mm) from any combustible materials.
- Carefully read through the installation manual included with the product to acquaint yourself with the Locking Band and other assembly details.
During Installation:
- Assemble the cowl slowly and methodically, ensuring all connections are secure. If you have purchased additional accessories like support brackets, follow the supplier’s instructions for a seamless integration.
After Installation:
- Conduct a thorough inspection once the cowl is installed to verify that there are no gaps or unsecured elements. A well-installed cowl will reduce the risk of draft issues and enhance the overall efficiency of your chimney system.
Final Considerations
The TWPro MB Rotating Cowl is an investment in safety, efficiency, and long-term performance. National Flues has ensured that this product not only meets but exceeds industry standards by incorporating high quality materials and innovative design features. Whether you are upgrading an existing chimney or installing a new system, this product offers unmatched benefits. The availability of optional accessories, such as chimney liners or additional support systems, provides the flexibility to customise your installation to meet unique environmental challenges and performance requirements.
Many customers have expressed their satisfaction with the reduced maintenance needs and increased heating efficiency that the TWPro MB Rotating Cowl provides. With its solid construction and thoughtful design, this cowl is set to improve the operational performance of your heating system, ensuring comfort and safety throughout the colder months.
In summary, investing in the TWPro MB Rotating Cowl means opting for a product that is built to last, performs reliably under diverse conditions and offers extensive customisation options to complement your unique chimney system setup. Its combination of innovative design and robust material quality makes it a standout choice in the market for those looking to elevate the efficiency of their chimney installations.
Add to cart or call 01670 206 999.
Transform your chimney’s efficiency and safety today with the TWPro MB Rotating Cowl – upgrade now!
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