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316L Mi-FLEX 200mm x 30m COIL (35Z-200-30)
National Flues proudly presents the 316L Mi-FLEX 200mm x 30m COIL – a premium, flexible flue liner engineered from high-grade 316L stainless steel. This advanced chimney liner is designed for relining masonry chimneys, combining durability with excellent multi-fuel compatibility. Ideal for homeowners and professionals alike, this product offers unparalleled performance and reliability, setting a new benchmark in chimney solutions.
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In Stock
£937.99
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Premium 316L stainless steel construction
Double-skinned design for enhanced durability
Omega-Lock seam for an airtight, robust seal
Multi-fuel compatibility: suitable for wood, oil, gas, low sulphur coal, and more
HETAS approved and CE certified for assured safety
Lifetime warranty when used with Screw-FIX accessories
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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 316L Mi-FLEX 200mm x 30m COIL is a top-of-the-line, double-skinned flexible flue liner designed for relining masonry chimneys. Crafted from 316L grade stainless steel, it features a smooth inner liner and a convoluted outer skin, both 0.105mm thick. This flue liner is built using an innovative Omega-Lock seam, providing an airtight, robust seal.
Approved by HETAS and CE certified, the 316L Mi-FLEX flue liner is suitable for use with gas, oil, coal, coke, cured dry logs, and cured dry peat. Its outstanding construction ensures longevity and reliability, making it an ideal solution for a variety of fuel-burning appliances.
Ensure that the flue liner is installed from the top of the chimney with the directional arrows pointing upwards to indicate the correct gas flow. Begin by having the chimney thoroughly swept and inspected, confirming that the chimney pot and structure are in optimal condition. Use the appropriate Screw-FIX accessories to securely fit the liner, following the manufacturer’s guidelines meticulously. Always adhere to safety protocols and consider professional assistance if you are uncertain of any step in the installation process.
The 316L Mi-FLEX flue liner is made from premium 316L grade stainless steel and features a smooth inner liner and a convoluted outer skin. Its Omega-Lock seam ensures a highly durable, airtight seal.
Yes, this flue liner is suitable for gas, oil, coal, coke, cured dry logs, and cured dry peat, making it a versatile choice for various heating systems.
Always fit the flue liner from the top of the chimney. Make sure the arrows on the liner are pointing upwards to indicate the direction of gas flow. Use a string connected to a Nose Cone to pull the liner down the chimney.
The flue liner is approved by HETAS and is also CE certified, ensuring it meets high standards of safety and reliability.
Both the inner and outer liner are 0.105mm thick, offering robust durability while maintaining flexibility.
It's recommended that chimneys serving solid fuel appliances be swept and maintained at least once a year, or more frequently as necessary.
Ensure the liner will fit down the chimney by testing with a small section, have the chimney swept, and check the condition of your chimney pot. If not using a suspended cowl, remove the pot from the stack.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Tuesday, April 29th.
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.
Read our review in our 316L Mi-FLEX 200mm x 30m COIL buyers guide
Introduction
When it comes to safeguarding your home’s heating system, selecting the right flue liner is crucial. The 316L Mi-FLEX 200mm x 30m COIL is a state-of-the-art product that offers exceptional durability, versatility, and peace of mind. Manufactured by Mi-Flues Ltd and offered by National Flues, this premium flexible flue liner is engineered from 316L stainless steel, making it an ideal solution for modern chimney relining.
Product Overview
The 316L Mi-FLEX coil features a robust double-skinned design that ensures continuous performance even under the most demanding conditions. With a diameter of 200mm (8 inches) and a generous length of 30 metres, this product is supplied on a convenient coil drum, enabling easier handling and installation. Both the inner and outer layers are crafted from 316L stainless steel, each with a thickness of 0.105mm, ensuring optimal resistance against corrosion and wear. The innovative Omega-Lock seam design not only maintains an airtight seal but also reinforces the structural integrity of the liner.
Key Features and Benefits
Premium Materials: The use of 316L stainless steel ensures that the flue liner possesses excellent resistance to temperature fluctuations and corrosive elements, which is essential for long-term durability. This robust material is ideal for withstanding the rigours of high-temperature environments.
Double-Skinned Construction: This design improves insulation and reinforces the liner's strength, providing an added safety margin against potential material fatigue. The dual-layer system also aids in maintaining consistent heat distribution which is vital for effective chimney performance.
Innovative Omega-Lock Seam: The Omega-Lock seam is a hallmark of quality, ensuring that the flue liner remains securely intact throughout its lifespan. This innovative feature minimises the risk of gas leakage, thereby promoting a safer and more efficient operation.
Multi-Fuel Compatibility: Designed for versatility, this flue liner is compatible with a broad range of fuels including wood, oil, gas, low sulphur coal, coke, and cured dry logs and peat. This flexibility means that it can be adapted to various heating systems, offering homeowners an all-in-one solution.
Certified Safety and Reliability: With HETAS approval and CE certification, the flue liner meets strict industry standards for safety and efficiency. This assurance of quality means that you can trust the product to perform optimally under all conditions.
Lifetime Warranty: When installed with our dedicated Screw-FIX accessories, this product comes with a lifetime warranty. This long-term guarantee underscores the confidence that National Flues has in the durability and performance of the 316L Mi-FLEX coil.
Installation Guidelines
Proper installation is paramount to harnessing the full benefits of your new flue liner. Begin by ensuring that your chimney has been thoroughly swept and inspected by a professional to confirm that it is free from soot, debris, and other obstructions. The installation process should always start at the top of the chimney, with special attention given to the directional arrows which indicate the proper flow of gases. The use of genuine Screw-FIX accessories is strongly recommended to secure the liner firmly in place. Taking the time to follow the manufacturer’s detailed installation instructions will help prevent issues such as misalignment or potential overheating.
Safety and Maintenance
Safety in your home is non-negotiable. The 316L Mi-FLEX flue liner is designed to work in tandem with your existing heating system, but regular maintenance is essential to keep it operating safely and efficiently. Scheduled annual inspections and chimney sweeps are recommended to remove any build-up of soot or debris that might impair performance. Additionally, periodic checks on the integrity of the Omega-Lock seam will help detect and address any potential issues before they escalate. Always adhere to the advice of certified technicians for maintenance procedures to ensure optimal safety.
Why Choose National Flues?
At National Flues, our commitment to quality is reflected in every product we offer. The 316L Mi-FLEX coil is not only a testament to advanced engineering but also a reflection of our dedication to providing reliable and efficient chimney solutions. Our extensive industry experience and robust customer service guarantee that you receive a product that meets both your expectations and stringent safety standards. By choosing this flue liner, you invest in a product that is built to last, backed by a lifetime warranty and the credibility of HETAS and CE certifications. Our comprehensive support ensures that from purchase through installation and maintenance, you have access to expert guidance and assistance.
Conclusion
The 316L Mi-FLEX 200mm x 30m COIL is an exceptional choice for enhancing the efficiency and safety of your chimney system. Its premium materials, innovative design, and certification-backed safety features make it a standout option for both homeowners and trade professionals. By investing in this top-tier flue liner, you embrace a future of reliable, efficient heating performance along with the reassurance that comes from superior build quality and long-term warranty coverage. The combination of cutting-edge technology and robust design means that you are not only upgrading your chimney system but also adding value to your home. Experience the perfect fusion of performance, safety, and durability with National Flues.
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Upgrade to the 316L Mi-FLEX coil today and secure unmatched quality and longevity for your chimney system!
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