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The Sflue (2141805) Inspection Length - 127mm Ø is a premium twin wall flue system designed for both solid fuel and gas/oil appliances. Crafted with precision using 304 and 316 grade stainless steel, this flue delivers unmatched durability and performance. Its robust design, complemented by high-quality compressed rockwool insulation, ensures optimal thermal efficiency allowing your woodstove, boiler, or gas coal effect fire to operate safely and effectively. HETAS approved and CE marked, this robust solution is the ideal choice for those seeking a reliable, safe, and long-lasting chimney system.
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In Stock
£260.99
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Robust double-wall construction using 304 stainless steel (outer) and 316 stainless steel (inner) at 0.4mm thickness
Compressed rockwool insulation (230kg/m³) for superior heat retention
8-barbed twist-lock system with secure locking band
HETAS approved and CE marked for uncompromised safety
15-year warranty backing long-term performance
Designed for use 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 (2141805) Inspection Length - 127mm Ø is an expertly crafted component designed for a variety of solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and boilers. With a robust construction, it features an outer skin made from 304 grade stainless steel and an inner skin made from 316 grade stainless steel, each 0.4mm thick. The insulation, made from compressed rockwool with a density of 230kg/m3, is fully encapsulated within twist-lock couplers, ensuring maximum safety and efficiency.
This model is HETAS Approved and CE marked, adhering to the highest standards. Installation is straightforward with its 8-barbed twist lock design secured by a Locking Band. Always maintain a distance of 50mm from any combustible material to ensure safety.
SKU: 22-125-019
Technical Specifications
SKU
22-125-019
Outer Material
304 Stainless Steel, 0.4mm thick
Inner Material
316 Stainless Steel, 0.4mm thick
Insulation
Compressed Rockwool (230kg/mu00b3)
Overall Length
500mm (with inspection door)
Inspection Length
127mm u00d8
Clearance Distance
50mm from combustibles
Approvals
HETAS / CE
Warranty
15 Years
System
Sflue
Compatible Fuels
Wood, Oil, Gas, Low sulphur coal
Design
8-barbed twist-lock with Locking Band
Before installation, ensure that the flue maintains a minimum 50mm clearance from any combustible materials. Follow the 8-barbed twist-lock design meticulously to secure each segment of the flue system. Always verify that the twist-lock couplers and locking band are fully engaged to prevent any movement during operation. It is advisable to consult the installation manual thoroughly, and if uncertainty arises, engage a certified installer to ensure that all HETAS and CE requirements are met. Adequate installation not only optimises performance but also guarantees safe, efficient operation for your appliance.
The Sflue (2141805) is suitable for solid fuel and gas/oil appliances, such as woodstoves, gas coal effect fires, and boilers.
Yes, the Sflue (2141805) is HETAS approved and CE marked, ensuring it meets high safety and quality standards.
The Sflue (2141805) is made with an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both 0.4mm thick. Additionally, it includes compressed rockwool insulation.
Maintaining a 50mm distance between the flue and any combustible material, such as wood or plasterboard, is crucial for safety and compliance with regulations.
The insulation is compressed rockwool with a density of 230kg/m3 and is encapsulated within twist-lock couplers, ensuring efficient insulation and safety.
The Sflue (2141805) is installed using an 8-barbed twist lock system, secured by a Locking Band. Ensure to keep the required 50mm distance from combustibles during installation.
Choose the Sflue (2141805) for its durable stainless steel construction, efficient insulation, and high safety standards. It’s an ideal component for a variety of solid fuel and gas/oil appliances.
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.
The Sflue (2141805) Inspection Length - 127mm Ø is a state-of-the-art flue system that represents the pinnacle of durability, efficiency, and safety in the world of chimney installations. Manufactured with precision and high-quality materials, this product is designed to cater to a wide array of appliances, including solid fuel, wood, oil, and gas applications. With its dual-layered construction, the Sflue ensures that you receive top performance and extended longevity while complying with strict industry standards.
Key Features and Benefits
Robust Construction
The double-wall design incorporates an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, both at 0.4mm thickness. This combination not only provides excellent resistance to corrosion but also ensures that the flue remains durable even under harsh conditions. The result is a product that stands the test of time and delivers reliable performance year after year.
Efficient Insulation
The use of compressed rockwool insulation, with a density of 230kg/m³, is a critical component in maintaining optimal thermal efficiency. Proper insulation helps in retaining heat, leading to improved performance of your heating appliance and a reduction in energy waste. This means a more efficient system that supports cost savings over the long run.
Ease of Maintenance
A significant advantage of the Sflue is its easily accessible inspection door. This feature allows for straightforward cleaning and routine maintenance, ensuring that your appliance operates at peak efficiency. Regular inspection and cleaning are essential not only for maintaining performance but also for prolonging the lifespan of the installation.
Secure Installation
The product comes equipped with an innovative 8-barbed twist-lock system secured with a locking band. This design feature simplifies the installation process while ensuring that each connection is robust and secure. Maintaining a secure installation reduces the risk of operational failures and enhances the overall safety of the system.
Safety and Compliance
Safety is paramount when it comes to chimney and flue installations. By keeping to the mandated 50mm clearance from combustible materials, the Sflue system adheres to strict safety standards. Moreover, the product is HETAS approved and CE marked, which means it meets or exceeds all relevant safety and quality regulations. This certification reassures users that their installation is both secure and compliant with industry standards.
Installation Guidelines and Important Considerations
Pre-Installation Checks
Before beginning the installation, ensure that the area designated for the flue installation is free from any obstructions and maintains adequate clearance from nearby combustible materials. It is important to measure the distance carefully to ensure compliance with the 50mm rule. Having the correct tools on hand and reading the comprehensive installation instructions can make the process smoother and more efficient.
Step-by-Step Installation Process
1. Preparation: Verify that all flue components are present and undamaged. Check the stock of needed accessories and any optional components that might further simplify the installation process.
2. Assembly: Begin by linking the flue sections using the 8-barbed twist-lock mechanism. Secure each segment with the locking band to ensure a solid connection.
3. Inspection and Testing: Once assembled, inspect the installation to confirm that all joints are secure and that clearance is maintained. It is advisable to perform a preliminary test to ensure optimal airflow and insulation performance.
Post-Installation Maintenance
Regular maintenance is essential to keep your flue system running smoothly. Schedule periodic inspections and cleaning sessions to remove any buildup of soot or debris, which can impair performance. Refer to the manufacturer’s guidelines for detailed maintenance instructions and safety precautions.
Overcoming Common Objections
Concerns About Installation Complexity
Many users worry that complex installations may lead to errors or require professional help. However, the Sflue system is designed with ease of use in mind. Its intuitive twist-lock design greatly simplifies the assembly process, allowing even those with limited DIY experience to complete the installation safely. For added assurance, professional installers can be engaged without significantly increasing overall costs.
Durability Under High Demands
Another common concern is whether the flue can withstand continuous, high-demand operation. The robust materials used in the Sflue construction, along with its stringent manufacturing standards, ensure that it can handle prolonged use without degradation. The 15-year warranty further underscores the manufacturer’s confidence in its durability.
Energy Efficiency and Cost Savings
Some may question if the higher initial investment in quality materials and advanced insulation translates into long-term savings. In reality, the energy efficiencies gained from using a well-insulated, secure flue system often lead to reduced heating bills, making the Sflue a smart investment in both safety and cost-efficiency over time.
Product Certifications
The HETAS and CE certifications play a crucial role in reassuring customers about the product’s safety and reliability. By opting for a certified product, you ensure that all safety standards are met, minimizing legal and safety risks. Such certifications often serve as a seal of quality in a market crowded with substandard options.
Conclusion
The Sflue (2141805) Inspection Length - 127mm Ø is more than just a flue system; it is a testament to engineering innovation combined with practical design. Whether you are upgrading an existing installation or outfitting a new appliance, this product offers unmatched performance, safety, and ease of maintenance. Every element of this flue system has been carefully considered to provide you with a solution that is as efficient as it is durable.
Experience the perfect blend of advanced engineering, safety, and reliability – buy now or call 01670 206 999.
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