Specflue Chimney Liners & Flue Systems

Specflue is one of the UK's most trusted names in chimney lining and twin-wall flue technology, supplying the essential components that make safe, compliant stove installations possible. Unlike a stove manufacturer, Specflue focuses entirely on the systems that connect your appliance to the outside world, including flexible liners, adaptors, flashings and terminals. Here at Burner Hub we stock a focused selection of Specflue products so you can complete your installation with hardware that HETAS installers rely on nationwide.

About Specflue

Specflue has built its reputation as a leading UK distributor of chimney lining and twin-wall flue systems, products that are absolutely essential to any stove installation. The brand is not a stove maker. Instead, it concentrates its expertise on the flue side of the equation, delivering liners, structural components, weatherproof flashings and high-performance terminals that work alongside almost any appliance.

The design philosophy is rooted in compatibility and durability. Specflue systems are deliberately brand-agnostic, meaning they are engineered to support the widest possible range of stove installations rather than tying you to a single appliance manufacturer. This flexibility, combined with consistent build quality, is exactly why so many professional installers across the country specify Specflue components on a daily basis. Every part is made to integrate cleanly with the wider system, reducing fitting complications and helping installers deliver work that meets current standards.

Specflue stove ranges

It is worth being clear about what Specflue does and does not make. Specflue is not a stove manufacturer, so there are no Specflue stove models in the traditional sense. What the brand offers instead are the flue and lining ranges that complete a stove installation. The Specflue range at Burner Hub centres on flexible chimney liner packs, including the 316-grade Flex Pack 2 kits supplied with the Prima Adapto adaptor, alongside Flex Pack B and Flex Pack D solutions.

These flexible liner kits are available in popular diameters such as 125mm and 150mm to 155mm, and in generous 10-metre lengths suited to taller buildings and multi-storey homes. Each pack is designed to make relining an existing chimney straightforward, bundling the liner together with the connecting components needed to link it to your wood-burning, solid fuel or multi-fuel stove.

Why choose Specflue?

The strongest argument for Specflue is its standing among installation professionals. HETAS installers across the UK reach for Specflue components because they are dependable, well made and widely compatible. Here are the concrete strengths to consider:

• Build quality: Many liner kits use 316-grade stainless steel, a corrosion-resistant material well suited to the demanding conditions inside a working chimney.
• Twin-skin construction: Several packs feature a twin-skin flexible liner design, engineered for reliable and long-lasting performance across years of use.
• Compatibility: The brand-agnostic approach means Specflue chimney systems support most stove installations, whatever appliance you are fitting.
• Complete kits: Flex Pack solutions bundle the liner with adaptors such as the Prima Adapto, reducing the risk of missing parts on installation day.

Because Specflue concentrates solely on flue and lining systems, the result is a focused product line where each component has been refined for its specific job rather than treated as an afterthought to a stove.

Specflue fuel and category coverage

Specflue flue and lining systems are designed to support a broad spread of appliance types. The flexible liner kits we stock are particularly well suited to solid fuel, wood-burning and multi-fuel stove installations, where a flexible 316-grade liner is the standard relining approach for an existing masonry chimney.

Because the brand is appliance-agnostic, its components also feature in installations spanning the wider stove categories, from traditional wood burners through to multi-fuel appliances. The key point is that the flue system is selected to match the appliance and the chimney, and Specflue offers the diameters and lengths needed to cover most domestic scenarios. If you are unsure which liner diameter your stove requires, our team can help you match the correct specification.

Buying Specflue from Burner Hub

Burner Hub stocks a curated selection of Specflue products, all available to order online and delivered across the UK. We apply a flat delivery charge of £100 per UK order, so you always know the cost up front before you check out. The Specflue stoves and flue accessories we list are chosen to cover the most common relining and installation needs.

If you need guidance on which Flex Pack, diameter or length is right for your project, our team is on hand to offer expert advice. We always recommend that any flue and liner installation is carried out by a qualified HETAS registered installer, who can confirm the correct specification for your appliance and chimney and ensure the finished work is safe and compliant. Browse the full Specflue range to find the right components for your build.

Featured products

Frequently asked questions

Does Specflue make stoves?

No, Specflue does not manufacture stoves. It is a UK distributor of chimney lining and twin-wall flue systems, supplying the liners, adaptors, flashings and terminals that are essential to a stove installation. The components are brand-agnostic, meaning they are designed to work with most appliances rather than a single stove maker. You can view the flue and liner products we stock in the Specflue range at Burner Hub.

What grade of steel are Specflue flexible liners made from?

Many Specflue flexible liner kits, including the Flex Pack 2 ranges, use 316-grade stainless steel. This material is chosen for its corrosion resistance, making it well suited to the demanding conditions inside a working chimney serving a solid fuel or multi-fuel appliance. Several packs also use a twin-skin construction for added durability. To compare the available diameters and lengths, browse the Specflue range stocked at Burner Hub.

What is the Prima Adapto supplied with some Specflue kits?

The Prima Adapto is an adaptor component included in certain Specflue Flex Pack 2 kits, such as the 125mm and 155mm 10-metre versions. It helps connect the flexible liner cleanly within the wider flue system during installation. Bundling the adaptor with the liner reduces the risk of missing parts on the day of fitting. You can find these complete kits within the Specflue range at Burner Hub.

Are Specflue components suitable for multi-fuel stoves?

Yes. The Specflue flexible liner kits we stock are particularly well suited to solid fuel, wood-burning and multi-fuel stove installations, where a flexible 316-grade liner is the standard relining method for an existing chimney. Because Specflue is appliance-agnostic, its systems support most stove installations. A qualified HETAS installer can confirm the correct liner specification for your appliance. Explore the options in the Specflue range at Burner Hub.

Which Specflue liner length should I choose for a tall house?

For taller buildings and multi-storey homes you typically need a longer liner run, which is why Specflue offers 10-metre flexible liner packs such as the Flex Pack B and Flex Pack D. The right length depends on your chimney height and appliance, so we recommend a HETAS installer measures your flue before ordering. See the available lengths and diameters in the Specflue range at Burner Hub.

Browse the full Specflue range

Shop Specflue See all brands