An Isokern flue system is a lightweight, pre-fabricated chimney solution made from natural pumice. Known for its excellent insulation properties and ease of installation, Isokern is widely used in new-build homes, extensions, and renovations, particularly for open fireplaces and solid fuel stoves. The system supports rapid heat-up, encourages a cleaner burn, and helps maintain strong chimney draft.
The modular Isokern flue system is made from pumice blocks or liners that are lightweight, easy to handle, and thermally efficient. Their high insulation value means that flue gases stay warmer for longer, reducing condensation and soot build-up. Isokern flues can be used internally or externally and are compatible with a range of appliances including wood burners, open fires, and biomass units.
Installation must follow manufacturer instructions and be carried out in line with UK Building Regulations. Suitable for both domestic and light commercial projects, Isokern flues offer an environmentally friendly chimney solution, combining performance with durability. Their versatility and low maintenance make them a popular choice for contemporary heating systems and traditional fireplaces alike.
What Is an Isokern Flue?
An Isokern flue is a chimney system constructed from lightweight pumice blocks, designed to efficiently vent smoke and combustion gases. It offers excellent thermal insulation, helping to improve draft and support cleaner, more efficient burning.
Features and Benefits
Isokern flues are modular, easy to install, and suitable for internal or external applications. Their insulating properties prevent condensation and allow for reduced clearances to combustibles, making them ideal for new-builds and energy-efficient homes.
Installation and Compliance
Installation should follow UK Building Regulations and Isokern system guidelines. Correct sizing, jointing, and support are essential to ensure safe operation and long-term performance in domestic or light commercial applications.
