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Enhance your chimney system with the Sflue Black Adjustable Pipe (2141406B) by National Flues. This premium adjustable flue pipe, ideal for solid fuel, gas, and oil appliances, offers superb durability, flexibility, and safety. With its robust stainless steel construction and innovative twist-lock mechanism, you benefit from a reliable solution that is perfect for woodstoves, gas fires, oil boilers, and more. Explore this high-quality, highly efficient pipe for your next project and experience the difference in performance and safety standards.
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In Stock
£241.49
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Telescopic adjustability from 500mm to 850mm
Robust twin-wall construction with 304 & 316 stainless steel
Meets HETAS and CE standards (EN1856-1 T450 N1 D V2 L50040 G50)
Suitable for woodstoves, gas fires, oil boilers, and more
Simple 8-barbed twist-lock installation with locking band
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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.
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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.
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 Sflue Black Adjustable Pipe (2141406B) with a diameter of 152mm offers exceptional flexibility ranging from 500mm to 850mm, making it ideal for use on solid fuel, gas, and oil appliances such as woodstoves, gas fires, and boilers. Constructed for durability, the outer skin features 0.4mm thick 304-grade stainless steel, while the inner skin is made from 316-grade stainless steel of the same thickness. The insulation consists of compressed rockwool with a density of 230kg/m3, encapsulated within the twist-lock couplers for enhanced safety and efficiency.
This twin wall insulated chimney pipe is not just versatile but also safety-approved, meeting HETAS standards and CE marked under Designation Number EN1856-1 T450 N1 D V2 L50040 G50. The entire assembly requires a safe distance of 50mm from any combustible materials. Installation is straightforward with an 8-barbed twist-lock mechanism secured by a locking band, ensuring a snug and secure fit.
SKU: 42-150-014
Technical Specifications
SKU
42-150-014
Adjustable Length
500mm to 850mm
Diameter
152mm
Inner Material
316L Stainless Steel (0.40mm thick)
Outer Material
304 Stainless Steel (0.40mm thick)
Insulation
Compressed Rockwool (230kg/mu00b3)
Approvals
HETAS / CE (EN1856-1 T450 N1 D V2 L50040 G50)
Safe Distance
50mm from combustibles
Mechanism
8-barbed twist-lock with locking band
Suitable For
Wood, oil, gas, low sulphur coal appliances
Installation Instructions:
1. Measure the required flue length between 500mm and 850mm to ensure a precise fit for your appliance setup.
2. Assemble the adjustable pipe sections using the secure 8-barbed twist-lock mechanism. Ensure that each section clicks into place firmly.
3. Maintain a minimum clearance of 50mm from any combustible materials, such as wood or plasterboard, throughout the installation process.
4. Insert the provided insulating material into the annulus once the pipe is adjusted to the desired length. This step is crucial for maximising heat retention and ensuring the safety of the system.
5. Secure the assembled pipe with the locking band to prevent accidental disassembly.
6. Finally, carry out a thorough inspection to confirm that the system complies with HETAS standards. If in doubt, seek professional assistance to verify that all installation criteria have been met.
Warning: Always double-check the clearance requirements and ensure that the pipe is installed in a well-ventilated area to prevent overheating.
The Sflue Black Adjustable Pipe is suitable for solid fuel and gas/oil appliances, including woodstoves, gas fires, oil and gas boilers, and other solid fuel systems.
A distance of 50mm should be maintained from the outside of the flue to any combustible materials such as wood or plasterboard.
The outer skin is made from 304-grade stainless steel and is 0.4mm thick, while the inner skin is made from 316-grade stainless steel of the same thickness. The insulation is compressed rockwool with a density of 230kg/m3.
Yes, the Sflue Black Adjustable Pipe is HETAS approved and also CE marked.
Installation involves an 8-barbed twist-lock mechanism. The chimney parts are connected using a locking band. Ensure a 50mm distance from any combustible material during installation.
The separate insulating material is provided to be placed into the annulus once the installed length has been determined, ensuring effective insulation and safety.
The designation number is EN1856-1 T450 N1 D V2 L50040 G50. It signifies the product’s compliance with European safety and performance standards as a high-temperature flue gas system component.
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.
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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 Sflue Black (2141406B) - Adjustable Pipe 500-850mm - Ø 152 buyers guide
Comprehensive Buyers Guide for the Sflue Black Adjustable Pipe (2141406B)
The Sflue Black Adjustable Pipe is an essential component for anyone looking to enhance the efficiency and safety of their heating system. This guide will walk you through everything you need to know about the product, its benefits, installation process, and why it stands out from other flue options in the market.
Introduction to the Product
The Sflue Black Adjustable Pipe has been designed to offer a flexible, reliable, and safe connection for a wide range of appliances, including woodstoves, gas fires, and oil boilers. With an adjustable length from 500mm to 850mm and a diameter of 152mm, this pipe ensures a customised fit for your specific installation requirements. Its twin-wall construction – using 316L stainless steel on the inside and 304 stainless steel on the outside – not only delivers superior durability but also excellent resistance to high temperatures and corrosion.
Key Features and Benefits
One of the most notable features of this adjustable pipe is its telescopic design. This makes it perfectly adaptable to varying installation conditions, ensuring that whether you need a slight adjustment or a complete overhaul of your chimney setup, this product can be precisely tailored to meet your needs. Additionally, the safety and compliance aspects are second to none; the pipe meets strict HETAS and CE marking standards (EN1856-1 T450 N1 D V2 L50040 G50), which reflects its high performance and reliability.
Durability and Reliability:
The use of premium stainless steels means that the pipe can withstand the most demanding conditions. The inner 316L stainless steel and the outer 304-grade material work in unison to guarantee a lifespan that far exceeds many competing products. The high-quality insulation – compressed rockwool with a density of 230kg/m³ – further enhances the system’s performance by retaining heat and ensuring consistent thermal efficiency.
Safety First:
Safety is a top priority with the Sflue Black Adjustable Pipe. It is designed to maintain a safe distance of 50mm from any combustible materials, a critical factor in preventing fire hazards. The product’s approval by HETAS and its CE marking give you the confidence that you are using a product that has undergone rigorous testing and meets the highest industry standards.
Detailed Specifications
For those who appreciate technical details, here is a breakdown of the key specifications:
- Adjustable Length: 500mm to 850mm
- Diameter: 152mm
- Inner Material: 316L Stainless Steel (0.40mm thick)
- Outer Material: 304 Stainless Steel (0.40mm thick)
- Insulation: Compressed Rockwool at 230kg/m³
- Safety Clearances: 50mm from combustibles
- Installation Mechanism: Secure 8-barbed twist-lock system with locking band
- Approvals: HETAS and CE (EN1856-1 T450 N1 D V2 L50040 G50)
These details ensure you are fully informed before making a purchase and highlight the engineering excellence that goes into every unit produced by National Flues.
Installation Insights
Installing the Sflue Black Adjustable Pipe is straightforward if you follow the provided guidelines. Begin by measuring the distance required between your appliance and the corresponding chimney outlet, ensuring that it falls within the 500mm to 850mm range. Assemble the sections using the twist-lock mechanism, taking care to secure each joint with the provided locking band. Once adjusted, the separate insulating material is inserted into the annulus to maximize efficiency. Always maintain a 50mm clearance from combustible materials to adhere to safety standards.
If you encounter any difficulties during installation, consider reaching out to a professional installer or contacting National Flues for expert advice. The clear design and engineering behind this pipe make it one of the easiest products to install, reducing both time and cost.
Addressing Common Objections
Is the installation complicated?
Not at all. The intuitive twist-lock system and detailed installation manual simplify the process, making it accessible even for those with limited DIY experience.
Will this product work with my current heating system?
Absolutely. The adjustable nature of the pipe means it can be customised to fit a wide variety of setups, ensuring compatibility with most standard heating appliances.
How does it stand up to environmental conditions?
Thanks to its robust dual-material construction and high-quality insulation, the Sflue Black Adjustable Pipe performs reliably in both extreme temperatures and conditions where corrosion might otherwise be a concern.
Conclusion
In summary, the Sflue Black Adjustable Pipe (2141406B) is a superior choice for enhancing your flue system. Its adaptable design, combined with durable, high-quality materials and safety features, make it ideal for modern heating systems that demand efficiency and compliance with national standards. This product not only offers great technical performance but also adds peace of mind knowing that it meets stringent safety guidelines.
Elevate your heating system with this exceptional adjustable pipe, enjoy the benefits of a customisable setup, and ensure the highest standards of safety and efficiency. Buy now or call 01670 206 999.
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