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Pipe 250mm Ø 150 (2-150-012)

National Flues presents the Pipe 250mm Ø 150, a premium twin wall insulated chimney pipe engineered for optimal performance in solid fuel and gas/oil heating systems. This high-quality chimney flue pipe, recognised for its robust stainless steel construction and outstanding thermal insulation, is ideal for woodstoves, oil and gas boilers, and gas coal effect fires. With the assurance of HETAS approval and CE marking, National Flues remains committed to safety, quality, and reliable nationwide delivery.
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At a Glance

    HETAS Approved & CE Marked

    316L inner and 304 outer stainless steel construction (0.40mm thick)

    Compressed rockwool insulation at 200kg/m³ for superior thermal performance

    Maintains a safe 50mm distance to combustibles

    Easily secured with a Locking Band for a straightforward installation

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 8th. This is based on current lead times for this product. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Best 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.

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]

The 250mm Ø Twin Wall Insulated Chimney Pipe from National Flues is designed for solid fuel and gas/oil appliances including woodstoves, gas coal effect fires, and oil and gas boilers. Featuring an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick, this pipe ensures longevity and resilience. The compressed rockwool insulation, with a density of 200kg/m³, guarantees top-notch thermal protection.

Our pipes are fully welded and HETAS Approved, carrying the CE mark for added assurance. Ideal for maintaining a safe 50mm distance to combustibles, the TWPro Twin Wall Insulated Chimney parts are easily secured with a Locking Band, making installation straightforward.

SKU: 2-150-012

Technical Specifications
SKU2-150-012
Pipe Diameter250mm u00d8 x 150
Inner Material316L Stainless Steel - 0.40mm thick
Outer Material304 Stainless Steel - 0.40mm thick
InsulationCompressed Rockwool, 200kg/mu00b3
ApprovalsHETAS / CE
Distance To Combustibles50mm
Effective Installed Length215mm
For a safe and secure installation, ensure that all TWPro Twin Wall Insulated Chimney parts are correctly aligned and firmly secured using the provided Locking Band. Maintain a minimum distance of 50mm from any combustible material, and strictly follow the manufacturer's guidelines. Before beginning the installation, check for a clear and unobstructed pathway along the chimney's route. If uncertain, consult a professional installer to guarantee compliance with local building regulations. Regular maintenance inspections are also recommended to ensure long-term performance and safety.

This chimney pipe is suitable for solid fuel appliances, gas coal effect fires, oil and gas boilers, and various woodstoves.

The outer skin is made from 304 grade stainless steel while the inner skin is made from 316 grade stainless steel, with both skins being 0.4mm thick.

Yes, the pipe is insulated with compressed rockwool at a density of 200kg/m³, providing excellent thermal insulation.

The TWPro Twin Wall Insulated Chimney parts should be secured together using a Locking Band. Ensure a minimum distance of 50mm from any combustible material.

The TWPro chimney pipe is HETAS Approved and CE marked, ensuring it meets high safety and performance standards.

You should maintain a distance of 50mm from the outside of the flue to any combustible material like wood or plasterboard.

Yes, the 250mm Ø Twin Wall Insulated Chimney Pipe is ideal for both new installations and replacing old components in existing systems.

What our experts say!

"The 250mm Ø Twin Wall Insulated Chimney Pipe is a robust and reliable choice for your heating needs. HETAS Approved and CE marked, it combines exceptional durability with top-tier safety standards. National Flues is committed to providing quality products, and our nationwide delivery ensures you receive your items promptly, whether you're a retail or trade customer."

This product is designed to safely and efficiently vent exhaust gases from solid fuel and gas/oil appliances, aiding in the effective installation and operation of heating systems.

National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and secure online payments. We cater to both retail and trade customers, ensuring quality products for all.

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