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904L Mi-FLEX 200mm x 1m CUT LENGTH
National Flues proudly presents the 904L Mi-FLEX 200mm x 1m Cut Length flexible flue liner, a top-tier solution for relining masonry chimneys. This innovative and robust product, engineered in the UK, offers exceptional performance and reliability for a wide range of fuels including gas, oil, and sm... More...
National Flues proudly presents the 904L Mi-FLEX 200mm x 1m Cut Length flexible flue liner, a top-tier solution for relining masonry chimneys. This innovative and robust product, engineered in the UK, offers exceptional performance and reliability for a wide range of fuels including gas, oil, and smokeless options. Discover a product that epitomises quality, safety, and durability, perfectly suited for both residential and commercial installations. Less...
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At a Glance
Made from premium 904L grade stainless steel for superior durability and corrosion resistance
Double-skinned design with a smooth inner layer and a convoluted outer layer for enhanced thermal performance
Engineered with a secure Omega-Lock seam, providing a robust quattrolock seal
Multi-fuel compatibility including gas, oil, coal, coke, dry logs, peat, and smokeless fuels
Approved by HETAS and CE, with a lifetime warranty when installed with Screw-FIX accessories
Now only
£90.49
Including VAT
Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.
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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 904L Mi-FLEX 200mm x 1m CUT LENGTH flexible flue liner is an outstanding product designed for relining masonry chimneys. Constructed from 904L grade stainless steel, this double-skinned liner boasts both a smooth inner layer and a convoluted outer skin, each with a thickness of 0.105mm. The liner is built from a single strip of steel, folded in four planes to create a secure quattrolock seal.
Ideal for multiple fuel types including gas, oil, coal, coke, cured dry logs, cured dry peat, and approved smokeless fuels, this product is both HETAS and CE approved. Featuring detailed installation and maintenance guidelines, it offers peace of mind with a lifetime manufacturer’s warranty when used with Screw-FIX accessories.
Double-skinned with a smooth inner layer and a convoluted outer layer featuring an Omega-Lock seam
Fuel Types
Compatible with gas, oil, coal, coke, cured dry logs, cured dry peat, and smokeless fuels
Approvals
HETAS, CE
Warranty
Lifetime (when installed with Screw-FIX accessories)
Manufacture Process
Single Strip Process creating a secure quattrolock seal
Manufacturer
Mi-Flues Ltd
For optimal performance and safety, follow the comprehensive installation guidelines provided by National Flues. Professional installation is recommended to ensure compliance with local safety standards. If installing independently, ensure you have all necessary accessories, including a Nose Cone and a pull string, to correctly position the liner. Regular chimney maintenance—such as an annual sweep—is advised to keep your system free of obstructions and operating efficiently.
This flue liner is suitable for burning gas, oil, coal, coke, cured dry logs, cured dry peat, and approved smokeless fuels.
Yes, the 904L Mi-FLEX flue liner is approved and listed by HETAS and also carries CE approval.
While it is possible to install the flue liner yourself using our detailed installation guidelines, we recommend professional installation to ensure safety and compliance with regulations.
It is recommended to sweep and maintain chimneys serving solid fuel appliances at least once a year, or more frequently if necessary.
The flue liner has both a smooth inner layer and a convoluted outer skin, each with a thickness of 0.105mm.
Yes, you will need a Nose Cone and a piece of string to pull the liner down the chimney, both of which are typically ordered separately.
Yes, it can be used with a suspended cowl. If not using a suspended cowl, you will need to ensure the pot is in good condition or remove it from the stack.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Thursday, April 3rd.
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. If you find it cheaper within 48 hours, we'll refund the difference.
Read our buyers guide for this 904L Mi-FLEX 200mm x 1m CUT LENGTH
Introduction
The 904L Mi-FLEX 200mm x 1m Cut Length flexible flue liner is a masterfully engineered solution designed for the relining of masonry chimneys. Developed by Mi-Flues Ltd and distributed by National Flues, this product stands as a benchmark in the industry, offering unparalleled durability, safety, and efficiency. In this comprehensive guide, we will explore the product’s unique features, extensive benefits, installation guidelines, and answer common queries to help you make an informed purchase decision.
Superior Quality Materials
Premium 904L Stainless Steel:
The use of 904L stainless steel ensures that the liner is highly resistant to corrosion and deterioration even when exposed to harsh environmental conditions. This premium material not only extends the life of your flue liner but also guarantees consistent performance over time. The dual layers, with both the inner and outer sections measuring 0.105mm in thickness, contribute to its exceptional strength and reliability.
Advanced Engineering and Design
Double-Skinned Construction:
This flue liner features a double-skinned design consisting of a smooth internal surface that promotes optimal fuel flow, and a rugged, convoluted external layer that provides superior insulation. The combination of these layers enhances the overall thermal efficiency of your chimney system, ensuring safe and efficient operation regardless of fuel type.
Omega-Lock Seam Technology:
Incorporating the innovative Omega-Lock seam into its design, the product is manufactured from a continuous single strip of steel. This results in a sealed, robust quattrolock that prevents leaks and ensures that your chimney operates safely. This technology is at the forefront of flue liner design, offering advantages that you will appreciate in everyday operation.
Certified Safety and Compliance
Industry Approvals:
The Liner is HETAS and CE approved, reaffirming its compliance with stringent safety and quality standards. These certifications are crucial, especially in a market where reliability and safety are non-negotiable. With the 904L Mi-FLEX flue liner, you can be confident that every component of your chimney’s relining process meets the highest regulatory benchmarks.
Installation Considerations
Ease of Installation:
Installing a flue liner is a critical process and must be approached with precision. Although the product is designed with user-friendliness in mind, we recommend professional installation. This not only ensures adherence to safety regulations but also guarantees that the liner is fitted correctly to deliver maximum performance.
Necessary Accessories:
To complete a successful installation, ensure you have the required accessories. It is essential to use Screw-FIX accessories to benefit from the lifetime warranty. Additionally, accessories such as a Nose Cone and a pull string are vital for effectively guiding the liner into the chimney. These accessories are available separately and are crucial for a secure and efficient installation.
Maintenance and Longevity
Regular Maintenance:
Longevity and consistent performance are guaranteed through proper maintenance. Annual chimney sweeps and regular inspections are recommended to ensure that the liner remains free of blockages and continues to operate efficiently. With minimal upkeep, you can enjoy the long-term benefits of this high-performance flue liner.
Lifetime Warranty:
A standout advantage of choosing the 904L Mi-FLEX is its lifetime warranty when installed with the appropriate Screw-FIX accessories. This warranty is a testament to the product's quality and durability, providing you with peace of mind for the long term.
Addressing Common Queries
DIY vs. Professional Installation
While detailed installation guidelines are provided, the complexity of chimney systems means that professional installation is highly recommended. Professionals can address unexpected challenges and ensure that every aspect of the installation meets local building codes and safety standards.
Fuel Compatibility
The 904L Mi-FLEX flue liner is designed for multi-fuel usage, making it an ideal choice regardless of whether you burn gas, oil, coal, coke, or approved smokeless fuels. Its versatility ensures that it adapts to a wide range of fuel types without compromising safety or performance.
Why Invest in a Quality Liner?
Investing in a high-standard flue liner is crucial not only for operational efficiency but also for the safety of your household or business. The 904L Mi-FLEX is an investment in quality, backed by a lifetime warranty, that safeguards your property by ensuring that your chimney functions safely and effectively over many years. It is engineered to meet stringent performance criteria and is supported by comprehensive industry certifications.
The National Flues Advantage
National Flues has built a reputation for delivering quality, reliability, and exceptional customer service. With competitive pricing and nationwide delivery, National Flues ensures that every customer receives products that meet high standards of excellence. Their commitment to secure transactions and after-sales support means that you can be confident in your purchase from start to finish.
Final Thoughts
When considering the longevity and safety of your chimney, the 904L Mi-FLEX 200mm x 1m Cut Length flexible flue liner stands out as a premium, high-performance option. It is designed to adapt to a variety of fuel types while ensuring safety and efficiency through a robust, well-engineered construction. With detailed installation guidelines, essential accessory recommendations, and a lifetime warranty backed by industry-leading certifications, this liner is built to deliver enduring performance.
By choosing the 904L Mi-FLEX flue liner, you opt for a solution that combines advanced manufacturing technology, meticulous design details, and a focus on long-term reliability. Every aspect of the product has been engineered to provide an optimal, hassle-free installation experience coupled with high operational efficiency. If you appreciate quality, durability, and a product that meets rigorous safety standards, the 904L Mi-FLEX is the clear choice for your chimney relining needs.
Experience excellence and protect your investment with a flue liner that truly stands the test of time. Buy now or call 01670 206 999.
National Flues Ltd Verdict
At National Flues, we believe the 904L Mi-FLEX 200mm x 1m Cut Length flexible flue liner is second to none for quality and durability. This product is perfect for both retail and trade customers, and we offer reliable nationwide delivery to ensure you receive your materials in a timely manner.
This 904L Mi-FLEX 200mm x 1m Cut Length flexible flue liner is used for relining masonry chimneys to ensure safe and efficient ventilation of various fuels.
National Flues is a leading supplier of high-quality fireplaces and flues, serving both retail and trade customers nationwide. Known for competitive pricing and reliable delivery, National Flues ensures secure online transactions and exceptional customer service.
Order now to invest in enduring reliability with our industry-leading 904L Mi-FLEX flue liner.
