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Discover the Sflue Adjustable Pipe 200-325mm - 152mm Ø by National Flues. This versatile adjustable chimney pipe is designed for woodstoves, oil and gas boilers, and other heating appliances. Its flexible, durable, and high-quality construction makes it the ideal solution for custom chimney installations. With high-density insulation and a secure twist-lock assembly, this product stands out in durability and performance, combining quality with safety through HETAS approval and CE certification.
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In Stock
£122.99
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Telescopic adjustable length: 200-325mm
Robust construction with 304 & 316-grade stainless steel
High density compressed rockwool insulation (230kg/m³)
Secure 8-barbed twist-lock couplers
HETAS approved and CE marked for safety
15-year guarantee for peace of mind
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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.
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.
The Sflue Adjustable Pipe 200-325mm - 152mm Ø is designed to provide an adaptable and robust solution for various heating systems, including woodstoves, gas coal effect fires, and oil and gas boilers. Crafted with a 304-grade stainless steel outer skin and a 316-grade stainless steel inner skin, this pipe promises long-lasting durability and exceptional resistance to high temperatures. The pipe's insulation is made from compressed rockwool, which ensures a high density of 230kg/m3, encapsulated within twist-lock couplers for optimal insulation performance.
Fully laser welded and HETAS approved, the Sflue Adjustable Pipe meets the stringent requirements of EN1856-1 T450 N1 D V2 L50040 G50. The twist-lock design of the telescopic adjustable length (200mm-325mm) offers flexibility for installations where standard pipe lengths are not suitable. Each adjustable pipe comes with separate insulating material for insertion into the annulus after installation.
With an essential distance of 50mm from any combustibles, this product ensures safety and compliance with all relevant regulations.
Before installation, ensure that the pipe is assembled using the secure 8-barbed twist-lock couplers. Check that all components interlock correctly to maintain the integrity of the insulation. It is vital to observe a minimum clearance of 50mm from any combustible materials to adhere to safety standards. The adjustable design requires careful measurement to ensure the final assembly aligns perfectly with your system configuration. Follow the manufacturer's guidelines closely and consult a professional installer if in doubt.
The Sflue Adjustable Pipe is suitable for solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and oil and gas boilers.
The outer skin is made from 304-grade stainless steel, and the inner skin is made from 316-grade stainless steel, each 0.4mm thick. The insulation consists of compressed rockwool with a density of 230kg/m3.
Yes, the Sflue Adjustable Pipe is HETAS approved and CE marked, meeting the requirements of designation number EN1856-1 T450 N1 D V2 L50040 G50.
The Sflue Adjustable Pipe features an 8-barbed twist-lock mechanism and is secured together with a locking band. Ensure there is a 50mm distance from any combustible materials during installation.
Yes, the pipe is designed to handle high temperatures, making it suitable for a variety of heating appliances including woodstoves and boilers.
Maintaining a 50mm distance from combustible materials is crucial to prevent potential fire hazards and ensure the safety and effectiveness of the flue system.
Yes, all adjustable lengths come with separate insulating material for insertion into the annulus once the installed length has been determined.
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.
When it comes to ensuring that your heating system operates safely and efficiently, every component plays a vital role. The Sflue Adjustable Pipe 200-325mm - 152mm Ø from National Flues offers a unique solution for those seeking a customizable and robust chimney system. This guide is designed to help you understand the benefits, installation process, and reasons why this product is an ideal investment for your home.
Why Choose the Sflue Adjustable Pipe?
Adjustability and Flexibility:
The telescopic design of the Sflue Adjustable Pipe provides a flexible solution for chimney setups where standard pipe lengths fall short. The adjustable length ranging from 200mm to 325mm ensures a perfect fit, making it suitable for various installation scenarios. This flexibility is particularly advantageous in older properties or bespoke installations where measurements can often vary.
Superior Materials:
Built with an outer skin of 304-grade stainless steel and an inner skin of 316-grade stainless steel, each 0.40mm thick, the product promises durability and longevity. These high-quality materials are meticulously chosen for their resistance to corrosion and high temperatures, ensuring your chimney pipe remains reliable over time.
Excellent Insulation:
For maximizing efficiency and safety, the pipe features high-density compressed rockwool insulation, rated at 230kg/m³. This ensures that your heating system maintains optimal performance while providing an extra layer of thermal protection. The insulation is key to preventing heat loss and ensuring that your heating appliance operates within safe temperature limits.
Safety and Certification:
The product is HETAS approved and CE marked, demonstrating compliance with rigorous safety standards. This certification provides an added layer of trust, confirming that the Sflue Adjustable Pipe adheres to industry best practices and regulatory requirements. Whether you are installing a woodstove, oil boiler, or gas appliance, safety is paramount.
Key Product Features
- Telescopic Adjustability: The range of 200-325mm makes it a versatile choice for diverse chimney setups.
- Stainless Steel Construction: The dual-layer build ensures robust performance under high temperatures.
- Rockwool Insulation: Provides consistent thermal protection and energy efficiency.
- Secure Twist-Lock Mechanism: Guarantees a stable and secure connection during and after installation.
- HETAS/CE Certification: Offers assurance of compliance with safety and performance standards.
Overcoming Common Objections
Installation Concerns:
Some customers worry about the complexity of installing an adjustable pipe. However, the Sflue Adjustable Pipe is designed with simplicity in mind. The twist-lock mechanism and clearly detailed guidelines make assembly straightforward, even for those with moderate DIY experience. For peace of mind, professional installation services are recommended where necessary.
Durability Doubts:
In today’s market, products often face criticism regarding longevity. The robust materials used in the Sflue Adjustable Pipe—a combination of two types of stainless steel and high density rockwool insulation—address these concerns by offering enhanced durability, steadfast performance, and a 15-year warranty for added security.
Safety Issues:
Safety is always a top priority. The Sflue Adjustable Pipe includes a mandatory 50mm clearance from combustible materials, ensuring that installations comply with the highest safety standards. The HETAS approval and CE marking further reinforce its credibility and reliability, reducing any concerns related to fire safety or operational hazards.
Installation Guidelines
Before you start the installation, ensure that you have measured your available space accurately. The telescopic nature of the pipe means that precise measurements are key to achieving the best fit. Follow these steps:
1. Preparation: Gather all necessary tools and components. Read the manufacturer’s instructions thoroughly.
2. Assembly: Begin by aligning the sections using the twist-lock couplers. Ensure each section locks firmly in place before proceeding to the next.
3. Insulation: Once the pipe is assembled to the desired length, insert the separate insulating material into the annulus. This step is crucial for maintaining the pipe’s thermal efficiency.
4. Safety Check: Verify that the installation maintains a minimum clearance of 50mm from any combustible materials. Double-check all connections and insulation placement.
Why National Flues?
National Flues is a trusted name in supplying high-quality chimney and flue products across the UK. With an emphasis on safety, reliability, and customer satisfaction, National Flues ensures that every product, including the Sflue Adjustable Pipe, meets and exceeds industry standards. Their commitment to quality is reflected in the meticulous construction, certification, and outstanding performance of their products. Choosing the Sflue Adjustable Pipe means opting for a balance of innovation, durability, and safety—a decision that pays dividends in energy efficiency and long-term cost savings.
Final Thoughts
Investing in the right chimney flue system can bring significant advantages in terms of safety, efficiency, and installation flexibility. The Sflue Adjustable Pipe 200-325mm - 152mm Ø is designed to address all these aspects, providing a solution that is not only highly functional but also built to remain reliable under demanding conditions. With its adaptable length, premium materials, and rigorous safety certification, this product stands out as a must-have for modern heating systems.
Rest assured that with the Sflue Adjustable Pipe, you are making a smart investment that enhances the overall performance of your heating appliance. Whether you are upgrading your current setup or planning a new installation, this adjustable pipe offers the perfect blend of flexibility and durability. It addresses common installation challenges while delivering superior thermal performance to maximise energy efficiency.
So, take the next step towards optimising your heating system. With the confidence of National Flues behind you, enjoy a seamless installation and reliable performance year after year. Buy now or call 01670 206 999.
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