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316L Mi-FLEX 80mm x 44m COIL

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, ... More...
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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
Now only £637.99
Including VAT & Free Delivery Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

 

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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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Have Questions?
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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.

SKU: 35Z-80-44

Technical Specifications
SKU35Z-80-44
Dimensions80mm x 44m
Material316L stainless steel (0.105mm inner & outer layers)
DesignDouble-skinned with Omega-Lock seal mechanism
Fuel CompatibilityWood, Oil, Gas, Low sulphur coal, Coke, Cured dry logs, Cured dry peat
CertificationsHETAS approved, CE certified
WarrantyLifetime (with Screw-FIX accessories)
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 Wednesday, April 2nd. 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 316L Mi-FLEX 80mm x 44m COIL

National Flues Ltd Verdict

The 316L Mi-FLEX 80mm x 44m COIL is a top-tier flue liner that serves a wide range of fuel types. With our consistent nationwide delivery and competitive pricing, it’s an excellent choice for both retail and trade customers.

This flexible flue liner is used for relining masonry chimneys to safely vent combustion gases from various fuel-burning appliances.

National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and excellent service to both retail and trade customers. Our secure online payment system ensures a seamless shopping experience.

 

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Secure long-lasting performance and peace of mind – order your 316L Mi-FLEX flue liner today!

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