We use cookies to ensure a smooth, secure, and ever-improving experience on our website. By continuing to browse, you agree to our use of cookies as detailed in our Cookie Policy. Enjoy your visit and let us now if you need any help!
Cookie Preferences
We use different types of cookies for various purposes. Please select which you allow:
316L Mi-FLEX 180mm x 1m CUT LENGTH (35Z-180-1)
National Flues presents the 316L Mi-FLEX 180mm x 1m flexible flue liner, a top-grade stainless steel solution engineered for longevity and efficiency. Perfect for relining masonry chimneys, this premium product combines robust construction with excellent fuel versatility, making it ideal for wood, oil, gas, and solid fuel applications. With HETAS approval and CE certification, the 316L Mi-FLEX offers reliability and peace of mind for both trade professionals and homeowners.
Hover to Zoom / Click for Gallery
In Stock
£28.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Constructed from premium 316L stainless steel for optimum durability and corrosion resistance
Flexible design with a smooth inner liner for efficient gas flow and a robust convoluted outer skin for added strength
Features an Omega-Lock seal to prevent leaks and ensure safe operation
Approved by HETAS and CE certified, meeting rigorous UK safety and performance standards
Lifetime manufacturer’s warranty when installed with Screw-FIX accessories, providing long-term peace of mind
×
Email Product
Enter your email address to send the product details:
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 316L Mi-FLEX 180mm x 1m flexible flue liner is an exceptional choice for relining masonry chimneys. Made from 316L grade stainless steel, both the inner and outer skins provide durability and corrosion resistance. The inner liner features a smooth construction for optimal gas flow, while the convoluted outer skin adds strength.
Its 0.105mm thick material ensures robustness, and the Omega-Lock seal eliminates any potential leaks. Approved by HETAS and CE certified, this liner is safe and reliable. It is suited for burning gas, oil, coal, coke, dry logs, and dry peat.
For installation, always fit from the top with arrows pointing upward, following our detailed checklist. Maintenance includes annual checks and sweeping for solid fuel usage.
SKU: 35Z-180-1
Technical Specifications
Product Name
316L Mi-FLEX 180mm x 1m CUT LENGTH
SKU
35Z-180-1
Grade
316L Stainless Steel
Dimensions
180mm x 1m Cut Length
Thickness
0.105mm (inner and outer)
Seam
Omega-Lock
Certifications
HETAS approved, CE certified
Fuel Compatibility
Wood, Oil, Gas, Coal, Coke, Dry logs, Dry peat
Warranty
Lifetime (with Screw-FIX accessories)
Manufacturer
Mi-Flues Ltd
• Always install from the top of the chimney with the installation arrows pointing upward
• Use the recommended Nose Cone (sold separately) to ensure a proper fit during installation
• Secure the liner with Screw-FIX accessories to take full advantage of the lifetime warranty
• For solid fuel installations, perform an annual check and cleaning to maintain optimal performance
• Follow the detailed installation checklist provided to ensure safety and compliance with manufacturer guidelines
The 316L Mi-FLEX flue liner is suitable for burning gas, oil, coal, coke, dry logs, and dry peat.
The flue liner is 0.105mm thick, providing excellent durability and strength.
Yes, the 316L Mi-FLEX flue liner is HETAS approved and CE certified, ensuring it meets high safety and performance standards.
The liner needs to be installed from the top of the chimney, with the arrows pointing upwards. Follow our detailed installation guide for best results.
Yes, it is recommended to use a Nose Cone (order separately) and secure it with a piece of string for the installation process.
For chimneys serving solid fuel appliances, maintenance and sweeping should occur at least once a year, though more frequent checks might be necessary.
When installed with Screw-FIX accessories, the 316L Mi-FLEX flue liner comes with a lifetime manufacturer’s warranty.
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 180mm x 1m CUT LENGTH buyers guide
Your Comprehensive Buyer’s Guide to the 316L Mi-FLEX 180mm x 1m Flexible Flue Liner
When it comes to ensuring the safety and efficiency of your chimney system, every detail matters. At National Flues, we understand the importance of quality and reliability. The 316L Mi-FLEX 180mm x 1m CUT LENGTH flexible flue liner is designed to provide outstanding performance over many years. This guide will walk you through everything you need to know, from key features to installation hints, maintenance advice, and more.
Understanding the Product
The 316L Mi-FLEX flue liner is crafted from premium 316L stainless steel, a material renowned for its durability and resistance to corrosion. Its dual-skinned design – featuring a smooth inner surface and a robust convoluted outer layer – ensures optimal gas flow while reinforcing structural strength. The innovative Omega-Lock seal is a standout feature that prevents leaks, promoting safety and efficiency in every installation.
Why Choose 316L Mi-FLEX?
• Designed for performance: Whether you are burning wood, oil, gas, coal, coke, dry logs, or dry peat, this liner meets the challenge with ease.
• Certified excellence: With HETAS approval and CE certification, you can be confident that the product meets and exceeds UK standards.
• Investment in longevity: Backed by a lifetime manufacturer’s warranty (when installed with Screw-FIX accessories), you’re opting for uncompromising quality and reliability.
Key Features That Matter
The benefits of the 316L Mi-FLEX flexible flue liner are clear. It is engineered with the following in mind:
- Durability: The use of 316L stainless steel guarantees an exceptional lifespan, even under harsh conditions.
- Efficiency: The smooth inner liner promotes an unobstructed flow of gases, aiding in efficient combustion and minimising build-up.
- Safety: The secure Omega-Lock seal ensures that leaks are effectively prevented, reducing risks associated with flue installations.
- Versatility: Suitable for various fuel types, this product caters to diverse heating systems, making it an ideal solution for both domestic and commercial installations.
Installation Tips and Considerations
Proper installation is critical to the performance of your flue liner. Here are some crucial steps and tips to ensure a flawless setup:
1. Preparation: Before beginning the installation, thoroughly inspect your chimney to ensure it is structurally sound and free from obstructive debris.
2. Orientation: Always start installing from the top of your chimney. The design includes arrows that should point upwards, ensuring that gases are correctly directed.
3. Accessories: It is recommended to use a Nose Cone (available separately) along with Screw-FIX accessories to secure the liner. These additional components are designed to complement the Mi-FLEX system, providing a secure and long-lasting installation.
4. Safety Checks: After installation, conduct a regular inspection. For installations serving solid fuel appliances, an annual cleaning and sweeping are advised to maintain peak performance.
Maintenance and Long-Term Use
Regular maintenance is essential to keep your chimney system safe and efficient. The robust construction of the 316L Mi-FLEX means that maintenance requirements are minimal, yet periodic checks are vital for continued reliability:
- Annual Inspections: Schedule yearly inspections to ensure that no debris or soot build-up diminishes the performance of your liner.
- Cleaning: For solid fuel systems, perform an annual sweep. This not only keeps the system efficient but also prolongs the lifespan of the liner.
- Accessory Checks: Ensure that all additional components, such as the Nose Cone and fixings, are secure and in good condition.
Addressing Common Concerns
We understand that investing in a new chimney liner can come with questions and concerns. Here are some frequently asked questions addressed for your peace of mind:
Q: Is the 316L Mi-FLEX suitable for different fuel types?
A: Absolutely. Its design is optimised for a range of fuels including wood, oil, gas, coal, coke, dry logs, and dry peat.
Q: What makes the Omega-Lock seal beneficial?
A: The Omega-Lock seal ensures a tight, leak-proof connection, significantly reducing the risk of hazardous gas leaks and ensuring efficient operation.
Q: How do I know if my installation is compliant?
A: The product’s HETAS approval and CE certification mean that it adheres to stringent UK standards, ensuring both legality and safety.
Final Thoughts
Choosing the right flue liner is crucial for the efficient operation of your heating system. The 316L Mi-FLEX 180mm x 1m CUT LENGTH flexible flue liner from National Flues combines state-of-the-art design with proven durability. Its superior construction, coupled with user-friendly installation and low maintenance requirements, positions it as a market-leading solution for both professional installers and homeowners.
With this guide, we hope you feel confident in your understanding of the product’s features, benefits, and the practical considerations involved in its installation and upkeep. The robust design not only meets the current needs of modern heating systems but is also built to stand the test of time, providing a secure, efficient solution for your chimney.
Investing in the 316L Mi-FLEX means selecting a product that values safety, efficiency, and longevity. Whether you are upgrading your existing system or installing a new chimney liner, National Flues is dedicated to supporting you every step of the way. We encourage you to review all the installation guidelines carefully, consider the benefits of using the recommended accessories, and enjoy the peace of mind that comes with a high-quality product backed by a lifetime warranty.
Enhance your chimney’s performance and ensure a safe, efficient operation by choosing the 316L Mi-FLEX flexible flue liner – where innovative design meets dependable functionality. Buy now or call 01670 206 999.
Secure your 316L Mi-FLEX liner now for unparalleled performance and long-lasting reliability.
×
Select Product Options
×
Product added
Would you like to keep shopping or head to checkout?
