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TW Pro MB - 250mm Adjustable Connecting Pipe (37-125-029)

The TW Pro MB - 250mm Adjustable Connecting Pipe is an industry leading chimney component made from premium stainless steel. This TW Pro product, with its matte black finish and robust design, is perfect for solid fuel and gas/oil appliances. Ideal for modern woodstove installations, oil boilers, and gas boilers, this adjustable connecting pipe combines superior insulation with a streamlined design that enhances both safety and performance.
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£104.99
with free delivery Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

  • 250mm adjustable connecting pipe with integrated telescopic section
  • Constructed in premium 304 and 316 stainless steel
  • High temperature matte black finish for durability and aesthetics
  • Compressed rockwool insulation offering a density of 200kg/m³
  • HETAS Approved and CE marked for secure installations

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]

APPLICATION
For use on solid fuel and gas/oil appliances. eg: woodstoves, gas coal effect fires, oil boiler, gas boiler and any solid fuel appliances. CONSTRUCTION
Outer skin is made from 304 stainless Steel and is 0.4mm thick.

This is then coated in a high temperature Black finish. The Inner skin is made from 316 grade stainless steel and is 0.4mm thick. Insulation is compressed rockwool giving a density of 200kg/m3.

All parts are fully welded.
Distance to combustibles is 50mm. APPROVALS
TWPro is HETAS Approved and is CE marked.
Designation Number is
EN1856-1 T600 N1 W V2 L50040 G50.
EN1856-1 T200 P1 W V2 L50040 O20. INSTALLATION
TWPro Twin Wall Insulated Chimney parts are secured together by using a Locking Band (supplied).
Make sure that you keep a distance of 50mm from the outside of the flue to any combustible material (wood, plaster board).

SKU: 37-125-029

Technical Specifications
Internal Flue Diameter125mm
External Pipe Diameter175mm
FinishMatte Black
Outer Skin Material304 Stainless Steel
Inner Skin Material316 Stainless Steel
Outer Skin Thickness0.4mm
Inner Skin Thickness0.4mm
InsulationCompressed Rockwool
Insulation Density200kg/m³
DesignationEN1856-1 T600 N1 W V2 L50040 G50
ApprovalsTWPro HETAS Approved, CE Marked
Clearance To Combustibles50mm
• Always use the supplied locking band to secure the chimney components together. • Ensure that the external surface maintains a minimum distance of 50mm from any combustible materials, including wood and plasterboard. • Follow the designated installation guidelines strictly to benefit from the full thermal efficiency and safety of the product. • It is recommended to engage with a professional installer who is familiar with high temperature systems for optimal performance.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. If you need faster stove or fireplace delivery please give us a call. We can often 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.

Read our review in our TW Pro MB - 250mm Adjustable Connecting Pipe buyers guide

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