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TWPro MB - H-Cowl - Ø 125 (37-125-103)
Discover the TWPro MB - H-Cowl - Ø 125 from National Flues – a premium anti-down draft terminal designed to offer unparalleled chimney protection. Perfect for woodstoves, oil and gas boilers, this sophisticated flue accessory utilises robust stainless steel construction and top-notch insulation, making it an ideal addition for solid fuel, gas, and oil applications. Experience high performance and durability with a product that blends innovative design and proven safety standards like HETAS and CE approval.
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£135.99
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At a Glance
Robust 304 stainless steel outer skin with high temperature black coating Durable 316L stainless steel inner skin and 0.40mm thickness for long-lasting performance Fully HETAS approved and CE marked for safety and compliance No moving parts design, ideal for high wind areas Insulated with 200kg/m3 compressed rockwool to enhance energy efficiency Secure locking band ensures stability during installation
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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 - H-Cowl - Ø 125 is a top-of-the-line anti-down draft terminal, specifically designed for solid fuel, gas, and oil appliances. It is ideal for woodstoves, gas coal effect fires, oil boilers, and gas boilers. Manufactured with a robust outer skin of 0.4mm thick 304 stainless steel and a 0.4mm thick inner skin made of 316 grade stainless steel, the H-Cowl is insulated with compressed rockwool at a density of 200kg/m3.
This exceptional construction ensures durability and high-performance. The high-temperature black finish adds an extra layer of protection. Fully HETAS approved and CE marked with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20, it guarantees safety and compliance.
Installation is straightforward with all parts fully welded and a secure locking band provided. Be mindful to maintain a safe distance of 50mm from any combustible materials during installation.
SKU: 37-125-103
Technical Specifications
SKU
37-125-103
Designation 1
EN1856-1 T600 N1 W V2 L50040 G50
Designation 2
EN1856-1 T200 P1 W V2 L50040 O20
Outer Material
304 Stainless Steel - 0.40mm thick, High Temperature Black Coated
Inner Material
316L Stainless Steel - 0.40mm thick
Insulation
Compressed Rockwool (200kg/m3)
Fuel Compatibility
Wood, Oil, Gas, Low Sulphur Coal
Approvals
HETAS / CE
Minimum Combatible Clearance
50mm
Diameter
125mm (5 inch)
• Ensure that the flue assembly is installed with a minimum clearance of 50mm from all combustible materials such as wood and plasterboard.
• Use the provided secure locking band to firm up the structure, ensuring a stable connection between all welded components.
• Follow all standard safety protocols during installation, and confirm that the system is in line with the HETAS and CE guidelines.
• Verify that all measurements and clearances are accurately maintained to optimise performance and safety.
• For any unforeseen issues during setup, refer to the detailed installation manual or contact our support team for assistance.
The H-Cowl is compatible with solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, oil boilers, and gas boilers.
The outer skin is made from 304 stainless steel with a thickness of 0.4mm, and the inner skin is made from 316 grade stainless steel, also 0.4mm thick. It is insulated with compressed rockwool at a density of 200kg/m3.
Yes, it is HETAS approved and CE marked with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 P1 W V2 L50040 O20.
The parts are secured together using a locking band (supplied). Ensure a distance of 50mm from any combustible materials like wood or plasterboard when installing.
The H-Cowl is a static anti-down draft terminal with no moving parts, providing excellent stability and effectiveness in preventing down drafts and water ingress in high wind conditions.
A minimum distance of 50mm should be maintained from the outside of the flue to any combustible material.
National Flues offers competitive pricing, reliable nationwide delivery, and a commitment to serving both retail and trade customers. Our products are top-notch, and we ensure secure online payments for all retail orders.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Tuesday, May 20th. 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.
When it comes to safeguarding your home’s heating system, the choice of a chimney terminal is critical. The TWPro MB - H-Cowl - Ø 125 from National Flues is engineered to the highest standards, providing excellent protection against downdrafts and water ingress, while being robust enough to withstand even the most challenging climatic conditions. In this guide, we delve into the features, benefits, and installation advice necessary to make an informed decision.
Detailed Overview
The TWPro MB - H-Cowl is a static anti-down draft terminal designed for a variety of fuel-burning appliances. With an outer appearance that is both stylish and functional, the terminal is constructed from 304 stainless steel with a high temperature black finish, while the inner lining utilises high-quality 316L stainless steel. Together with an insulating layer of compressed rockwool at a density of 200kg/m3, the design ensures high thermal efficiency and durability.
Key Features and Their Benefits
Robust Construction: The dual-layered stainless steel construction provides high resistance to external weather conditions, ensuring longevity and reducing the risk of corrosion. This is particularly crucial for homes located in areas with severe weather.
High Temperature Coating: The black coating on the external surface not only adds aesthetic appeal but also serves as a protective barrier against heat and environmental wear, contributing to safer long-term operation.
Static, No Moving Parts Design: Unlike other terminals that incorporate moving parts and are prone to mechanical failure, the TWPro MB - H-Cowl’s static design reduces the need for maintenance and lowers the risk of operational failures. This makes it an excellent choice for high wind areas.
Compliance and Safety: With full HETAS approval and CE marking, this product meets stringent safety standards, making it a reliable choice for both residential and commercial installations. The certifications assure you that the terminal has been rigorously tested and complies with industry standards.
Installation Guidelines
Proper installation is key to optimising the performance of the TWPro MB - H-Cowl. The terminal comes with a locking band that helps secure the structure firmly in place. It is critical to maintain a minimum distance of 50mm from any combustible materials during and after installation to ensure both safety and compliance with regulatory norms. Detailed installation instructions are provided with the product, and it is recommended to follow these carefully or seek professional advice if necessary.
Addressing Objections
Is it difficult to install?
The TWPro MB - H-Cowl has been designed with simplicity in mind. With all parts fully welded and a secure locking band provided, the installation process is straightforward. Most users find that with clear guidelines, the process is hassle-free even for those with limited technical expertise.
What about long-term durability?
Thanks to its high-quality stainless steel construction combined with a robust insulation system and weather-resistant coating, this terminal is built to last. It outperforms many other options on the market by offering both strength and longevity, making it a smart investment for your home.
How does it perform in high wind areas?
Its static design without moving parts is specifically engineered for challenging conditions. This unique construction significantly reduces the chance of mechanical failure during strong winds, ensuring consistent performance and peace of mind.
Is it compatible with my heating appliance?
The TWPro MB - H-Cowl is designed for compatibility with solid fuel, oil, and gas appliances. Whether you are using a woodstove for a cosy evening or a gas boiler for daily needs, this terminal promises reliable operation and improved safety by preventing down drafts and water ingress.
Long-Term Benefits
Investing in a high-quality chimney terminal such as the TWPro MB - H-Cowl not only enhances the safety of your installation but also contributes to efficient thermal management. By preventing heat loss, it helps maintain optimal performance of your heating appliance, which can translate to lower energy costs over time.
The reduced maintenance requirements mean you spend less time worrying about the upkeep of your chimney system and more time enjoying the warmth and comfort of your home. Moreover, the superior weather protection assures you that even during harsh winters or stormy conditions, your system remains uncompromised.
Making the Decision
Choosing the right chimney terminal can be a daunting process given the numerous options available in the market. The TWPro MB - H-Cowl - Ø 125 stands out with its robust construction, cutting-edge design, and compliance with industry safety standards. Its versatility across various fuel types makes it a reliable and long-lasting solution suitable for a wide range of residential and commercial settings.
By aligning quality with safety and ease of installation, the TWPro MB - H-Cowl not only meets but exceeds expectations in delivering protection, durability, and efficiency. The investment you make in this terminal is an investment in the safety and performance of your entire heating system.
For homeowners and installers looking for a secure, compliant, and efficient flue solution, the TWPro MB - H-Cowl is a standout choice. Its engineering excellence and commitment to quality ensure you get the best value and performance.
Buy now or call 01670 206 999.
Secure your TWPro MB - H-Cowl now to enhance your fireplace performance and ensure unrivalled safety.
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