Pumice Flue Liners (Isokern)
Our Isokern pumice flue liners are engineered for durability, insulation, and performance. Made from natural volcanic pumice, these systems are lightweight yet incredibly strong, offering excellent resistance to heat and thermal shock.
Unlike traditional clay or concrete liners, pumice provides superior natural insulation, helping to maintain higher flue gas temperatures for improved chimney draft and reduced condensation.
Perfect for both new builds and chimney renovations, pumice flue liners are easy to handle, quick to install, and designed to last. Their robust thermal efficiency not only enhances appliance performance but also contributes to long-term energy savings and reduced maintenance.
Choose pumice systems for a reliable, eco-friendly solution that combines strength, safety, and sustainability in one natural material.
Showing 1–21 of 30 results
- Complete 4.8m package
- Eight 150mm pumice liners
- Compact, insulated design
- Complete 6m package
- Ten 150mm liners
- Compact and efficient
- Complete 7.2m package
- Twelve 150mm pumice liners
- Insulated, secure design
- Complete 9m package
- Fifteen 150mm liners
- Insulated, stable design
- Complete 4.8m package
- Eight 175mm pumice liners
- Secure, insulated system
- Complete 6m chimney kit
- Ten 175mm pumice liners
- Stable, insulated design
- Complete chimney system
- Indoor or outdoor ready
- Twelve pumice liners
- Complete chimney package
- Indoor or outdoor use
- Long-lasting pumice liners
- Complete 4.8m bundle
- Eight 200mm pumice liners
- Safe, insulated design
- Complete 6m chimney kit
- Ten 200mm pumice liners
- Strong and lightweight design
- Complete 7.2m package
- Twelve 200mm liners
- Stable and secure design
- Complete 9m chimney kit
- Fifteen 200mm liners
- Built for taller chimneys
- Buff firebrick finish
- 230 × 114mm size
- Slim 25mm thickness
- Buff firebrick finish
- 230 × 114mm size
- 50mm thick construction
- For DM Block Chimneys.
- Suitable for use in negative pressure (Dry Chimney) applications.
- CE Designation (T450 N1 D 3 G(00)
- For DM Block Chimneys.
- Suitable for use in negative pressure (Dry Chimney) applications.
- CE Designation (T450 N1 D 3 G(00).
- Zinc alloy, rust-proof
- Double insulated doors
- Adjustable spigot design
- Genuine Schiedel Isokern firebrick mortar supplied in a 20kg pack for installing and jointing compatible firebricks in fireplace and firechest applications.
- Estimated Delivery: 5-10 Working Days
- Contact us to configure/ advise on a full pumice system
- 1000 length size
- Variety of diameters
- Lightweight, highly insulated
- 600 length size
- Variety of diameters
- Lightweight, highly insulated
- For lining masonry chimneys.
- Suitable for use in negative pressure (Dry Chimney) applications.
- CE Designation (T450 N2 D 3 G)
Showing 1–21 of 30 results
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Isokern pumice flue liners are a proven chimney solution designed for both new chimney builds and the refurbishment of existing chimneys. Manufactured from natural pumice, these liners offer excellent insulation and durability, helping your stove or fireplace perform efficiently while maintaining strong and consistent chimney draw.
Lightweight yet extremely robust, Isokern pumice chimney systems are easy to handle, cut and install. They are suitable for a wide range of construction types including masonry, timber frame and steel frame buildings, making them a versatile option for modern homes as well as traditional properties.
The insulating properties of pumice help keep flue gases hotter for longer, improving chimney performance and reducing condensation within the flue. This makes pumice flue liners ideal for wood burning stoves, multi fuel stoves and other solid fuel appliances, whether installed indoors or in outdoor chimney structures.
Isokern chimney systems have been used across Europe for more than 60 years, earning a reputation for reliability, performance and long term durability. Each component is designed to work seamlessly together, allowing you to build a complete chimney system with bends, adaptors, support blocks and accessories.
Available in a range of flue diameters and chimney liner bundles, our Isokern pumice flue liners provide a flexible solution for both installers and homeowners. All liners are CE certified to EN1857 standards, ensuring they meet strict safety and performance requirements.
Browse our full range of Isokern pumice flue liners, chimney components and liner bundles to find the right system for your installation.
