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TWPro - MB MI AD-Cowl - Ø 125 (37-125-105)

Discover National Flues’ TWPro - MB MI AD-Cowl - Ø 125, a leading chimney flue terminal expertly engineered to eliminate downdraught issues. This premium flue terminal is designed for both trade and retail customers seeking durable, high-performance solutions. Read more...
Now only £127.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.
  • Fast deliveryMonday, November 17th*
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At a Glance

  • Addresses downdraught issues effectively
  • Constructed with high-grade 304 and 316 stainless steel
  • HETAS approved and CE marked for safety and reliability
  • Suitable for all fuel types (wood, gas, oil, solid fuels)
  • Fully welded construction for enhanced durability
  • Easy installation with supplied Locking Band and clear 50mm combustible spacing

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: sales@nationalflues.com

The TWPro - MB MI AD-Cowl - Ø 125 is your go-to solution for addressing downdraught issues in chimneys. Expertly crafted for seamless integration with TWPro system components, this terminal adds both functionality and aesthetic appeal to your chimney setup. Constructed from high-quality materials, the outer skin is made from 304 stainless steel and coated with a high-temperature black finish, while the inner skin consists of 316-grade stainless steel, making it suitable for all fuel types including wood, gas, oil, and solid fuels.

To ensure outstanding insulation, it features compressed rockwool with a density of 200kg/m3. Fully welded construction and compliance with HETAS and CE standards ensure both safety and durability. The terminal is easy to install using a supplied Locking Band and maintains a safe 50mm distance from combustibles, making it a reliable choice for any chimney system.

SKU: 37-125-105

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

Technical Specifications
SKU37-125-105
Diameter125mm
Material Outer304 stainless steel with high-temperature black finish
Material Inner316-grade stainless steel
InsulationCompressed rockwool (200kg/m3 density)
ConstructionFully welded
ApprovalsHETAS and CE marked
InstallationLocking Band supplied; maintain 50mm clearance from combustibles
Before installation, ensure that the chimney area is clear of any obstructions and that a safe 50mm distance from any combustible material is maintained. Step 1: Verify the measurements and check that the Locking Band supplied is intact. Step 2: Position the TWPro - MB MI AD-Cowl at the chimney termination, aligning it properly with the system. Step 3: Secure the terminal using the Locking Band, ensuring all components are fixed firmly in place. Step 4: Inspect the installation to confirm that the terminal is stable, with no gaps or loose fittings. Warning: Always adhere to manufacturer guidelines and local regulations. Any modifications can void the product's approvals, so ensure that installation is performed by a qualified professional if uncertainty exists.

The terminal is compatible with all types of fuels, including wood stoves, gas, oil boilers, and solid fuel appliances.

The outer skin is made from 304 stainless steel with a high-temperature black finish, while the inner skin consists of 316-grade stainless steel.

Both the outer and inner skins are 0.4mm thick.

Yes, the TWPro terminal is HETAS approved and CE marked, providing assurance of its quality and compliance with safety standards.

A distance of 50mm from the outside of the flue to any combustible material such as wood or plasterboard is required.

The terminal is installed using a Locking Band, which is supplied with the product. This ensures a secure and straightforward assembly.

Yes, the high-temperature black finish on the outer skin makes it suitable for high-temperature applications, ensuring longevity and reliability.

 

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