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TWPro MB - 135° Tee - Ø 125 (37-125-034)

The TWPro MB 135° Tee – Ø 125, a premium chimney component from National Flues, combines superior design with robust materials for optimal flue performance. Ideal for wood stoves, gas and oil boilers, and other heating appliances, this twin wall insulated chimney accessory guarantees safe and efficient heat management. Read more...
TWPro MB - 135° Tee - Ø 125
IN STOCK
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Now only £154.99
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At a Glance

  • Designed for optimal cleaning access at the base of your chimney system
  • Robust dual-layer stainless steel construction (304 outer, 316L inner) with high-temperature black coating
  • Engineered for compatibility with solid fuel, gas, and oil appliances
  • Integrated compressed rockwool insulation (200kg/m³) for excellent thermal efficiency
  • HETAS approved and CE marked for guaranteed safety and quality
  • Includes a secure locking band ensuring a tight, reliable fit with a minimum 50mm clearance from combustibles

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

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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.
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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).

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Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The TWPro MB 135° Tee Ø 125 is engineered for exceptional performance and reliability. Ideal for solid fuel, gas, and oil appliances including wood stoves, gas coal effect fires, oil boilers, and gas boilers. This component features robust construction with an outer skin made from 0.4mm thick 304 stainless steel, finished in a high-temperature black coating.

Its inner skin is crafted from 0.4mm thick 316 grade stainless steel, ensuring durability and resistance to corrosion. The insulation comprises compressed rockwool with a density of 200kg/m³ to provide excellent thermal efficiency. Fully welded components guarantee structural integrity.

The TWPro system is HETAS approved and CE marked, highlighting its quality and compliance with safety standards. Maintaining a safe distance of 50mm from combustibles is critical for installation. The integrated locking band facilitates secure and straightforward assembly.

SKU: 37-125-034

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.

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Technical Specifications
SKU37-125-034
Outer Material304 Stainless Steel (0.4mm thick, High-Temperature Black Coated)
Inner Material316L Stainless Steel (0.4mm thick)
InsulationCompressed Rockwool (200kg/m³)
Fuel CompatibilityWood, Oil, Gas, Low Sulphur Coal
CertificationHETAS Approved, CE Marked
ClearanceMinimum 50mm from combustibles
Design135° Tee shape for optimal flue gas flow and cleaning access
SystemTWPro Black
Before commencing installation, ensure the chimney system is de-energised and cooled. Use the included locking band to securely join the TWPro MB 135° Tee to your existing flue system. Maintain a clearance of at least 50mm from any combustible materials, including plaster, wood, or insulation. Ensure all connections are fully welded and sealed to prevent heat loss and maintain structural integrity. Follow the manufacturer’s guidelines and, if in doubt, consult a certified installer to guarantee a safe and compliant installation.

The TWPro 135° Tee is compatible with solid fuel, gas, and oil appliances such as woodstoves, gas coal effect fires, oil boilers, and gas boilers.

The outer skin is made from 304 stainless steel (0.4mm thick) with a high-temperature black finish, and the inner skin is made from 316 grade stainless steel (0.4mm thick).

The insulation is compressed rockwool with a density of 200kg/m³, ensuring excellent thermal efficiency.

Yes, the TWPro 135° Tee is both HETAS approved and CE marked, meeting stringent safety and performance standards.

The TWPro 135° Tee is secured using a locking band (included), ensuring a secure connection. Keep a 50mm gap from any combustible materials.

The 135° angle aids in cleaning access at the base of the chimney while ensuring smooth flow of flue gases without restrictions.

A minimum clearance of 50mm from plasters, wood, or any other combustible materials is required for safe installation.

 

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