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High-Quality Flue Liners | MI-Flex, Gas FLEX, 150MM (6 INCH) Flue Liner for perfect ventilation

Our Flue Liners category exhibits the perfect balance of safety and durability, with selections from distinguished manufacturers, MI-Flex and Gas FLEX. Available in the streamlined size of 150MM or 6 inches, these flue liners are tailored meticulously for gas and oil chimneys. Carefully crafted for an unbeatable lifespan, they ensure an exceptional level of security as well as top-rated functionality.

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StovesPremium Stoves
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Connecting PipesConnecting Pipes
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Installation PartsInstallation Parts
After Care PartsAfter Care Parts

The best selling flue liner in the UK. Suitable for gas, oil, and approved solid fuels. Call our advisers on 01670 206 999 if you need any help choosing.

Your Flue Liner Questions Answered

What makes a good Flue Liner? -

A quality Flue Liner should be durable, heat-resistant and offer excellent insulation. Our MI-Flex and Gas FLEX range offer top-notch safety, longevity, and functionality.

Why do I need a Flue Liner? +

What size Flue Liner do I need? +

How do I install a Flue Liner? +

Can I install a Flue Liner myself? +

How much does a Flue Liner cost? +

How often should I replace my Flue Liner? +

For those seeking dependable flue liners in the UK, we present an exemplary range right from MI-Flex and Gas FLEX. Our Flue Liners are the embodiment of reliability for your fireplace. Sized at 150MM (6 inches), these liners are specifically optimised for gas and oil chimneys and find the ideal balance between flexibility and rigidity, ensuring an easy installation process and a sturdy final result. Combining an extended product lifespan with remarkable heat resistance, we ensure that our Flue Liners become a permanent fixture, providing you with an efficient and safe fireplace operation over time. We take great pride in offering these premium flue liners that stand true to industry norms and exceed customer expectations, offering top-tier safety and service values at competitive prices.
Why Buy Flue Liner Products
A Flue Liner, like those from the house of MI-Flex and Gas FLEX, becomes the backbone of your fireplace operation. Apart from funneling smoke and gases safely out of heating appliances like a stove or fireplace, they help prevent the transfer of excessive heat to combustible parts of your building, safeguarding against potential fire risks. Additionally, the quality Flue Liners help block the entry of dangerous carbon monoxide back into the home and help boost the efficiency of your fireplace by ensuring a consistent draft. A proper liner can significantly extend the life of your chimney by guarding the masonry from corrosive byproducts of combustion.

Trusted By Trade Professionals

Our Flue Liner products and services are trusted by hundreds of professionals nationwide. We're committed to providing quality and reliability that meets the high standards of our customers.

Dedicated Support

Experience our unparalleled customer service and support when you buy Flue Liner from National Flues. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.

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