The Isokern 350mm internal diameter rebated liner handles large open solid-fuel fires in new-build properties.

This pumice liner is embedded in masonry construct via brickwork or blockwork as the chimney stack is formed for cost effective integration. Volcanic pumice offers high insulation to reach performance temperatures rapidly and cool slowly for sustained flue performance. Lightweight construction ensures easy handling cutting and installation with enduring durability.

• Internal diameter: 350mm
• Outer diameter: 416mm
• Height: 600mm
• Material: Volcanic pumice concrete
• Fire resistance: Up to 1000°C
• Installation: Socket uppermost. Insulate externally with minimum 15mm LECA by builder using brickwork or blockwork
• Compliance: CE certified to EN 1857. Document J compliant. HETAS accepted

This pumice liner is available for order and suits building projects with substantial open fires.

Schiedel Isokern refers to a premium range of chimney, flue, and fireplace systems manufactured by Schiedel, a leading European chimney specialist. The Isokern brand is renowned for its use of high-quality volcanic pumice sourced from Iceland's Hekla volcano, which provides exceptional natural insulation, lightweight construction, quick installation, and excellent thermal performance.