The Isokern 250mm internal diameter rebated liner accommodates large open solid-fuel fires and wood-burning firebox stoves in new-build developments.

This pumice liner is built into masonry construct with brickwork or blockwork as the chimney stack develops for cost effective use. Its pumice composition delivers high insulation to achieve performance temperatures swiftly and retain heat longer for consistent performance. Lightweight properties enable easy handling cutting and installation with durable lifespan.

• Internal diameter: 250mm
• Outer diameter: 310mm
• Height: 600mm
• Material: Volcanic pumice concrete
• Fire resistance: Up to 1000°C
• Installation: Socket uppermost. Lip-glue joints. Insulate externally with minimum 15mm LECA by builder via brickwork or blockwork
• Compliance: CE certified to EN 1857. Document J compliant. HETAS compliant

This pumice liner is available for order and suits large flue requirements in trade builds.