Shop our range of Midtherm flexible stainless steel flue liners for lining existing masonry chimneys.

Available in standard 125mm (5") and 150mm (6") sizes, we stock both 316 and 904 grade options to suit different stove and installation requirements.

We've chosen Midtherm because it gives us a dependable, well-established liner range that does the job properly without making things more complicated than they need to be.

Flexible flue liner runs inside an existing chimney, creating a dedicated route for combustion gases from your stove to the chimney terminal. Our liners are available in a choice of lengths, so you can select the size that best suits your installation.

If you need the components to connect everything together, browse our flue parts, adaptors and spares. You can also explore our flue pipes and twin wall flue ranges for the other parts of your system.

Flue Liners

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125mm (5") Flexible Flue Liner - 904 Grade
1 in stock now
From £464.00
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125mm (5") Flexible Flue Liner - 316 Grade
2 in stock now
From £360.00
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150mm (6") Flexible Flue Liner - 904 Grade
From £640.00
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150mm (6") Flexible Flue Liner - 316 Grade
From £520.00
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