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National Flues proudly presents the Sflue (2141005) Pipe—a premium chimney flue component designed for robust and efficient performance. This top-tier insulated pipe is ideal for use with woodstoves, gas coal-effect fires, and oil and gas boilers. Engineered in the UK with high-grade stainless steel, this Sflue system ensures durability, safety, and efficiency. Enhance your home heating system with a product trusted for its quality and compliance with industry standards.
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In Stock
£65.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Constructed from premium 304 and 316 stainless steel with 0.40mm thickness
Insulated with high-density compressed rockwool (230kg/m³) for optimal heat retention
Certified HETAS and CE approved, meeting stringent safety standards
Designed for compatibility with wood, oil, gas, and low sulphur coal appliances
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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 (2141005) - 500mm Pipe with a 127mm (5-inch) diameter is specifically designed for use with solid fuel and gas/oil appliances, including woodstoves, gas coal-effect fires, and oil and gas boilers. Constructed with high-grade materials, the outer skin is made from 304-grade stainless steel and the inner skin from 316-grade stainless steel. Both skins boast a thickness of 0.4mm for enhanced durability.
The pipe is insulated with compressed rockwool, offering a density of 230kg/m³, encapsulated within the twist-lock couplers. This ensures optimum heat retention and safety as it maintains a distance of 50mm from combustible materials.Sflue is rigorously tested and approved, holding a HETAS certification and CE marking. The designation number EN1856-1 T450 N1 D V2 L50040 G50 speaks to its adherence to stringent standards, ensuring you get a high-quality, reliable product.
Installation is straightforward with the 8-barbed twist lock mechanism which requires no complex tools—just secure each section with a locking band. The Sflue system is perfect for anyone seeking efficient and safe chimney flues.
SKU: 22-125-011
Technical Specifications
Product ID
2901
SKU
22-125-011
Length
500mm
Diameter
127mm
Inner Material
316L Stainless Steel (0.40mm thick)
Outer Material
304 Stainless Steel (0.40mm thick)
Insulation
Compressed Rockwool (230kg/mu00b3)
System
Sflue
Approvals
HETAS, CE
Installation
8-barbed twist lock mechanism with locking band
Distance To Combustibles
50mm
Applicable Fuels
Wood, Oil, Gas, Low sulphur coal
Warranty
15 Years
• Begin by laying out all flue sections in a clear and unobstructed area.
• Check each section for any visible defects before installation.
• Use the 8-barbed twist-lock mechanism to securely join sections; simply align the twist locks and tighten the locking band.
• Ensure a minimum clearance of 50mm from any combustible material to maintain safety levels.
• No complex tools are required, but always refer to local building codes and safety guidelines before proceeding.
• If in doubt, consult a professional installer to guarantee compliance with all regulations.
The Sflue (2141005) is compatible with solid fuel appliances, gas/oil appliances such as woodstoves, gas coal effect fires, and oil and gas boilers.
Yes, the Sflue (2141005) is HETAS Approved, ensuring it meets high safety and performance standards.
The outer skin is made from 304 grade stainless steel and the inner skin is made from 316 grade stainless steel, both with a thickness of 0.4mm.
The Sflue (2141005) is insulated with compressed rockwool, providing a density of 230kg/m³ for excellent heat retention.
You must maintain a distance of 50mm from the outside of the flue to any combustible materials such as wood or plasterboard.
The Sflue (2141005) uses an 8 barbed twist-lock system and sections are secured together with a locking band, making installation straightforward and secure.
The Sflue (2141005) meets designation number EN1856-1 T450 N1 D V2 L50040 G50, indicating compliance with stringent industry standards.
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.
Comprehensive Buyers Guide for the Sflue (2141005) 500mm Pipe
When investing in a chimney flue system, quality, safety, and reliability are paramount. The Sflue (2141005) 500mm Pipe, available through National Flues, stands out as a premium option engineered for optimal performance with both solid fuel and gas/oil heating appliances. This guide aims to provide you with in-depth knowledge, overcome any objections, and help you make an informed decision.
Why Choose the Sflue (2141005) 500mm Pipe?
Robust Construction: Built with dual layers of high-grade stainless steel, the pipe features an outer skin of 304 stainless steel and an inner skin of 316 stainless steel, each with a 0.40mm thickness. This design not only ensures resistance to harsh weather and corrosion but also prolongs the lifespan of your installation.
Efficient Insulation: The flue is insulated with compressed rockwool at a density of 230kg/m³. This insulation is crucial in maintaining optimum heat retention, reducing energy loss, and ensuring the safe operation of your heating system. It stands as a testament to the highest standards of thermal efficiency.
Simple Installation: Thanks to the innovative 8-barbed twist-lock mechanism, assembling the flue system is remarkably straightforward. The design negates the need for complex tools and reduces installation time, meaning you can set it up quickly and focus on what matters most – enjoying a warm, comfortable environment.
Certified Safety: The Sflue (2141005) is HETAS approved and CE marked, guaranteeing compliance with stringent safety standards. These certifications validate that the product has undergone rigorous testing, ensuring reliability and superior performance in various firing systems.
Addressing Potential Concerns
Installation Ease: One common concern is whether the flue system can be assembled without professional help. The Sflue (2141005) has been designed with the DIY enthusiast in mind. With a user-friendly twist-lock mechanism, the assembly process is both quick and straightforward. However, always make sure to follow local safety guidelines and consult a professional if there’s any uncertainty during installation.
Durability and Longevity: Another frequent question is about the lifespan of the flue. Constructed from top-tier stainless steel and insulated with high-density rockwool, this product is engineered to withstand the rigours of continuous use and harsh environmental conditions. With a warranty of 15 years, you can be confident of its long-term performance.
Compatibility with Fuel Types: Whether you’re running a wood-burning stove or a modern gas or oil boiler, the Sflue (2141005) is versatile enough to handle various types of solid fuel and gas/oil appliances. Its design ensures that it can efficiently manage the exhaust from these systems, making it a versatile choice for many different heating setups.
How the Sflue (2141005) Enhances Your Heating System
This superior flue system not only improves the efficiency of your heating appliance but also enhances the overall safety of your installation. With its robust construction and excellent insulation, the Sflue (2141005) minimizes the risk of heat loss and potential hazards associated with improper ventilation. Proper installation and maintenance ensure that your home remains a safe haven during the colder months.
Installation Best Practices
To maximise the benefits of the Sflue (2141005), ensure you adhere to the following practices:
- Pre-Installation Inspection: Always check each flue section before installation to avoid any issues later. Look for any signs of damage or manufacturing inconsistencies.
- Maintain Clearance: A critical safety requirement is to maintain a minimum distance of 50mm from any combustible materials. This precaution is vital in preventing potential fire hazards.
- Secure Assembly: Use the 8-barbed twist-lock coupler securely with a locking band. This ensures that each segment is firmly connected, reducing the risk of accidental dislodgement during operation.
- Follow Guidelines: Always refer to the installation manual and local building codes. If you are unsure, professional advice is available.
Economic and Environmental Benefits
Investing in the Sflue (2141005) is not only a step towards increased home safety but also a cost-effective decision in the long run. Reduced energy loss due to superior insulation translates into lower heating bills. Moreover, using certified and efficient components contributes to a reduced environmental footprint, supporting a greener, more sustainable way of living.
Final Thoughts
The Sflue (2141005) 500mm Pipe is a testament to advanced engineering, combining top-quality materials with innovative design and user-friendly installation. It addresses key concerns such as durability, safety, efficiency, and ease of installation, making it an ideal choice for both new installations and upgrades.
At National Flues, our commitment is to provide products that deliver excellent performance and peace of mind. With detailed certifications, robust construction, and a design that prioritises ease of use, the Sflue (2141005) is a smart investment for any homeowner or installer looking to enhance their heating system.
Choose excellence. Choose safety. Elevate your heating system with the Sflue (2141005) 500mm Pipe.
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