Description
904L Mi-FLEX 125mm Flexible Flue Liner
Discover the 904L Mi-FLEX 125mm Flexible Flue Liner, a high-quality solution tailored for relining masonry chimneys, ensuring superior performance with various fuel types, including gas, oil, coal, coke, cured dry logs, cured dry peat, and approved smokeless fuels.
Application:
This double-skinned flexible flue liner is meticulously crafted for relining within masonry chimneys, offering compatibility across an extensive range of fuel options, including smokeless fuels, for versatile heating solutions.
Construction:
Engineered for durability, the flue liner features a smooth inner liner made from robust 904L grade stainless steel, boasting a 0.105mm thickness. Its convoluted outer skin, also fashioned from 904L stainless steel with a 0.105mm thickness, ensures exceptional resilience. The liner is constructed from a single strip of steel, bent at 180 degrees, and sealed using a quattrolock technique, providing an airtight and secure seal for reliable performance.
Approval and Installation Checklist:
Approved and listed by HETAS and CE, this flue liner guarantees adherence to stringent quality and safety standards. Before installation, ensure the chimney’s suitability, sweep the chimney, and assess the pot’s condition. Installation should commence from the top of the chimney, ensuring correct directional alignment for optimal gas flow. Utilize the Nose Cone (ordered separately) to secure the liner during installation, ensuring arrows align properly for correct orientation.
Maintenance:
For safety and efficiency, regular maintenance is key. It’s recommended to sweep and maintain chimneys serving solid fuel appliances at least once a year or as frequently as necessary to ensure unobstructed functionality.
Specifications:
Designation: 904L Mi-FLEX 125mm
Inner Material: 904L Stainless Steel – 0.105mm thick
Outer Material: 904L Stainless Steel – 0.105mm thick
Fuels: Smokeless
Approvals: BS EN 1856-2 T600 N1 W Vm L70011 G, HETAS
Manufacturer: Mi-Flues Ltd
Seam: Single Strip Omega-Lock
Warranty: Lifetime
Engineered with precision and backed by a lifetime warranty, the 904L Mi-FLEX 125mm x 1m Cut Length Flexible Flue Liner ensures durability, compliance, and optimal performance across a spectrum of fuel types. It’s a reliable choice for safe and efficient chimney relining, meeting the highest industry standards.

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