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316L Mi-FLEX 155mm x 1m CUT LENGTH (35Z-150-1)

Introducing the National Flues 316L Mi-FLEX 155mm x 1m CUT LENGTH flue liner – a high-quality, flexible solution crafted from premium 316L stainless steel. Designed specifically for relining masonry chimneys, this innovative flue liner offers superior durability, versatile fuel compatibility, and outstanding safety credentials, including HETAS approval and CE certification. Read more...
316L Mi-FLEX 155mm x 1m CUT LENGTH
IN STOCK
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Now only £16.99
Give us a call if you find it cheaper and we'll normally price match.
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At a Glance

  • 316L grade stainless steel inner and outer linings at 0.105mm thickness
  • Innovative Omega-Lock seamless construction for a robust, leak-proof fit
  • Versatile fuel compatibility: wood, oil, gas, coal, coke, cured dry logs, and peat
  • HETAS approved and CE certified for assured safety and compliance
  • Lifetime warranty when installed with Screw-FIX accessories, ensuring peace of mind

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.

Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The 316L Mi-FLEX 155mm x 1m Flexible Flue Liner is a top-tier solution for relining masonry chimneys. Designed with a smooth inner lining and a convoluted outer skin, both made from 316L grade stainless steel at 0.105mm thickness, this flue liner offers exceptional performance and longevity. Its innovative Omega-Lock seal, constructed from a single strip of steel bent at 180 degrees, ensures robust durability and a leak-proof fit.

Our flexible flue liner is suitable for various fuels including gas, oil, coal, coke, cured dry logs, and peat. It’s HETAS approved and CE certified, emphasizing its quality and safety credentials. When installed with Screw-FIX accessories, it comes with a lifetime manufacturer’s warranty, offering additional peace of mind.

SKU: 35Z-150-1

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, November 14th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

This is us — real advice over the phone, or at the counter, and real stock in our warehouse.

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Technical Specifications
Product Name316L Mi-FLEX 155mm x 1m CUT LENGTH
Material316L Stainless Steel
Thickness0.105mm (inner and outer linings)
Dimensions155mm x 1m (cut length)
Seam ConstructionOmega-Lock (single strip, 180° bent, four-plane fold)
Fuel CompatibilityWood, Oil, Gas, Coal, Coke, Cured Dry Logs, Peat
ApprovalsHETAS, CE
WarrantyLifetime (with Screw-FIX accessories)
ManufacturerMi-Flues Ltd
Installation of the 316L Mi-FLEX flue liner should always be performed from the top down, ensuring that the arrows on the liner are pointing upwards to promote optimal gas flow. For best performance, it is imperative that the liner is installed by a qualified professional who is familiar with the specific requirements of masonry chimney relining. Always use Screw-FIX accessories when installing to secure the flue liner properly, which also qualifies the installation for the lifetime warranty. Be sure to follow all manufacturer guidelines and local building regulations. Regular maintenance, such as annual chimney sweeping, is recommended to ensure safety and efficiency, especially if the appliance burns solid fuels.

This flue liner is suitable for use with gas, oil, coal, coke, cured dry logs, and cured dry peat.

Yes, this flue liner is HETAS approved and CE certified, ensuring it meets stringent safety standards.

Both the inner and outer linings are made from 316L grade stainless steel with a thickness of 0.105mm.

It is constructed from a single strip of steel bent at 180 degrees, with the seam folded in four planes to create an Omega-Lock seal.

For solid fuel appliances, the chimney should be swept and maintained at least once a year, or more frequently if necessary.

The liner should always be fitted from the top with the arrows pointing upwards to ensure proper gas flow.

Yes, when installed with Screw-FIX accessories, the 316L Mi-FLEX Flue Liner comes with a lifetime manufacturer’s warranty for the appliance it is connected to.

 

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