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316L Mi-FLEX 125mm x 44m COIL

In Stock

The 316L Mi-FLEX 125mm x 44m COIL is your go-to multi-fuel flexible liner made from 316L grade stainless steel. With a smooth inner design and a convoluted outer, this liner ensures maximum durability and efficiency. When paired with Screw-FIX accessories, you receive a lifetime manufacturer’s warranty.

£840.99 incl VAT

The 316L Mi-FLEX 125mm x 44m COIL is a double-skinned flexible flue liner, expertly designed to reline masonry chimneys. Constructed with a smooth inner liner from 316L grade stainless steel, this flue liner offers robust durability at 0.105mm thickness. Its convoluted outer skin, also made of 316L stainless steel, ensures maximum protection. Notably, the liner is created from a single strip of steel bent at 180 degrees, sealed with an Omega-Lock for a secure fit. Approved by HETAS and CE-certified, this versatile flue liner is suitable for gas, oil, coal, coke, cured dry logs, and cured dry peat. Installation is straightforward; however, ensure the liner fits the chimney, sweep the chimney, and ensure the pot is in good condition. Maintenance is simple—sweep the chimneys serving solid fuel appliances at least once a year to maintain optimal performance.

  • SKU: 35Z-125-44
  • Item: 316L Mi-FLEX 125mm x 44m COIL 44m DRUM - 125mm (5 inch)
  • Designation:: BS EN 1856-2 T200 P2 W Vm L50011 O
  • Inner Material:: 316L - 0.105mm thick
  • Outer Material:: 316L - 0.105mm thick
  • Fuels:: Wood, Oil, Gas, Low sulpher coal
  • Approvals:: HETAS
  • Manufacturer:: Mi-Flues Ltd
  • Manufacture:: Single Strip
  • Seam:: Omega-Lock
  • Warranty:: Lifetime

What is it for?

The 316L Mi-FLEX 125mm x 44m COIL is intended for relining masonry chimneys to safely and efficiently expel combustion gases from multi-fuel heating systems.

Brand Summary

National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and exceptional customer service for both retail and trade clients.

National Flues Verdict

The 316L Mi-FLEX 125mm x 44m COIL is a top-tier choice for anyone needing a reliable, flexible flue liner. With a smooth 316L grade stainless steel inner liner, it’s designed for longevity and performance. Plus, National Flues delivers nationwide and serves both retail and trade customers.

Our Rating
9.8/10

FAQs

The 316L Mi-FLEX liner is suitable for burning gas, oil, coal, coke, cured dry logs, and cured dry peat.

Ensure the liner will fit by pulling a small section of the diameter liner down the chimney before full installation.

The flue liner has a thickness of 0.105mm, made from durable 316L grade stainless steel.

Yes, the 316L Mi-FLEX flue liner is approved and listed by HETAS and is also CE certified.

Yes, you can install it yourself by following the provided checklist. However, professional installation is recommended for optimal results.

It's recommended to sweep and maintain chimneys serving solid fuel appliances at least once a year.

Yes, when installed with Screw-FIX accessories, this flue liner carries a lifetime manufacturer's warranty.