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316L Mi-FLEX 80mm x 44m COIL (35Z-80-44)
The 316L Mi-FLEX 80mm x 44m COIL from National Flues offers a premium flue liner solution for relining masonry chimneys across the UK. Crafted from durable 316L stainless steel, this flexible and multi-fuel compliant flue liner is ideal for gas, oil, coal, and more. HETAS approved and CE certified, it ensures safety and efficiency while meeting stringent construction standards. Perfect for both residential and commercial applications, this product delivers exceptional performance and longevity, making it a top choice when searching for reliable chimney relining solutions.
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In Stock
£637.99
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
Durable double-skinned design with Omega-Lock seal
Versatile for multiple fuel types including gas, oil, coal, coke and more
HETAS approved and CE certified
Lifetime manufacturer''s warranty when used with Screw-FIX accessories
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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 316L Mi-FLEX 80mm x 44m COIL is a premium double-skinned flexible flue liner designed for relining masonry chimneys. Crafted from high-quality 316L grade stainless steel, both the inner and outer liners boast a thickness of 0.105mm, ensuring durability and long-lasting performance. This flue liner is ideal for use with multiple fuels, including gas, oil, coal, coke, cured dry logs, and cured dry peat.
For added reliability, it features an Omega-Lock seal formed by folding the steel in four planes after bending it at 180 degrees. Approved by HETAS and CE certified, the flue liner meets stringent safety and performance standards. Installation is straightforward, with steps to ensure a secure fit from the top of the chimney, emphasizing the importance of pointing the arrows upwards to match the gas flow.
Regular maintenance, such as annual chimney sweeping, is recommended to ensure optimal performance.
Installation is straightforward when following our recommended guidelines. Begin by fitting the liner from the top of your masonry chimney. Ensure that the directional arrows are aligned upwards to match the gas flow direction, ensuring optimal venting. Secure the liner using the appropriate accessories, such as Screw-FIX fittings, and remember to attach a piece of string to the Nose Cone to pull the liner down carefully into position. Regular maintenance, including an annual chimney sweep, is essential to ensure longevity and performance. Always refer to the detailed installation manual provided by Mi-Flues Ltd for safety precautions and step-by-step guidance.
The flue liner is constructed from 316L grade stainless steel, with a 0.105mm thick smooth inner layer and an equally thick convoluted outer layer.
Yes, the 316L Mi-FLEX flue liner is suitable for burning gas, oil, coal, coke, cured dry logs, and cured dry peat.
The 316L Mi-FLEX flue liner is HETAS approved and CE certified, ensuring it meets high safety and performance standards.
The flue liner should be fitted from the top of the chimney, with the arrows pointing upwards to match the gas flow. It's recommended to secure a piece of string to the Nose Cone and pull the liner down while feeding it from the top.
Both the inner and outer layers of the flue liner are 0.105mm thick, providing durability and reliability.
Chimneys serving solid fuel appliances should be swept and maintained at least once a year to ensure optimal performance and safety.
Yes, it carries a lifetime manufacturer's warranty if installed with Screw-FIX accessories.
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 80mm x 44m COIL buyers guide
Introduction
Selecting the right flue liner is crucial for maintaining the efficiency and safety of your heating system. The 316L Mi-FLEX 80mm x 44m COIL is engineered to deliver outstanding performance, ensuring that your chimney operates safely with minimal fuss. In this guide, we provide an in-depth look at the benefits, installation requirements, and optional accessories that can enhance your flue lining system.
Overview of the 316L Mi-FLEX Flue Liner
Crafted from high-grade 316L stainless steel, this flue liner is manufactured using a single strip method to achieve a double-skinned build. The product features a unique Omega-Lock seal, which is formed by a four-plane folding process after a 180-degree bend. This design creates a robust, leak-proof liner that is compatible with a range of fuels such as wood, oil, gas, low sulphur coal, coke, cured dry logs, and cured dry peat. The flexibility and durability of this product make it an excellent choice for relining masonry chimneys.
Technical Excellence and Safety
At the heart of the 316L Mi-FLEX flue liner is its superior technical design. With inner and outer layers both measuring 0.105mm in thickness, the product is engineered for longevity and resistance to harsh weather conditions and corrosive substances. The liner’s design meets rigorous HETAS and CE standards, reflecting a commitment to high safety and performance levels. This guarantee of quality and compliance is indispensable for any homeowner or professional installer.
Installing Your Flue Liner
A proper installation is essential for achieving the full benefits of the 316L Mi-FLEX flue liner. Begin by positioning the liner at the top of your chimney. Ensure that you align the indicated arrows with the direction of gas flow. This step is crucial, as it ensures that the liner efficiently vents combustion gases, minimising the risk of smoke and hazardous byproducts accumulating in your living space. A recommended accessory, such as Screw-FIX fittings, can be utilised to secure the liner properly. Remember, once installed, regular maintenance through annual chimney sweeping is essential to keep your system performing optimally.
Optional Accessories to Enhance Your System
While the 316L Mi-FLEX flue liner stands out with its intrinsic qualities, pairing it with complementary optimum accessories can boost its performance. Look into options such as enhanced fixings, extended nose cones, and advanced sealing devices. These accessories not only facilitate a smoother installation but also extend the life cycle of the flue liner while ensuring unmatched safety and efficiency. Exploring these optional additions can transform a standard installation into a high-performance, long-lasting heating solution.
Addressing Common Concerns and Objections
Quality and Durability
Many customers are concerned about the longevity of their chimney system. With its constructed 316L stainless steel composition, the Mi-FLEX flue liner is engineered to resist corrosion and maintain its structural integrity even under high temperatures. The double-skinned design reinforces its durability and makes it a reliable long-term investment.
Installation and Maintenance
Some may worry that the installation of a flexible flue liner might require specialist skills. However, the intuitive installation process of the 316L Mi-FLEX is designed to simplify the task, even for those with moderate DIY experience. Additionally, once installed, only annual maintenance is required, which significantly lowers long-term upkeep costs.
Performance Across Multiple Fuels
Considering the variety of fuels used in modern residential heating, it is essential to have a flue liner that can adapt. The Mi-FLEX is versatile enough to ensure safe combustion and optimal venting, regardless of whether you use gas, oil, or solid fuels, reducing the need for multiple specialized liners.
Compliance and Warranty
Safety is paramount when choosing a flue liner. The 316L Mi-FLEX meets and exceeds HETAS and CE standards, giving you confidence in its performance and safety. Moreover, it comes with a lifetime manufacturer's warranty when used with Screw-FIX accessories, further solidifying its standing as a top of the range product.
Final Thoughts
In conclusion, investing in a high-quality flue liner like the 316L Mi-FLEX is a decision that ensures not only enhanced safety and efficiency but also lasting peace of mind. Designed with precision, manufactured with care, and engineered for versatile performance, this flue liner is an excellent choice for anyone looking to improve their chimney system. Its technical superiority and robust construction make it a valuable asset for both residential and commercial installations.
When planning your next renovation or maintenance project, it is important to consider every detail, including optional accessories that further streamline the installation process or boost performance. Be sure to explore the range of complementary products available, which can make your installation even more seamless and future-proof.
Investing in the 316L Mi-FLEX flue liner is an investment in safety, durability, and performance. Each element, from the premium stainless steel to the innovative Omega-Lock seal, has been designed with quality in mind. We encourage all customers to scrutinise every detail and ask the necessary questions to ensure that their chosen product perfectly meets their needs.
Buy now or call 01670 206 999.
Secure long-lasting performance and peace of mind – order your 316L Mi-FLEX flue liner today!
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