The Isokern 300mm internal diameter rebated liner supports large open solid-fuel fires and double-sided wood-burning fireboxes in new-build homes.

This pumice liner integrates into masonry construct using brickwork or blockwork during chimney stack assembly for cost effective deployment. Pumice material provides high insulation for quick performance temperature attainment and extended cool down to maintain efficiency. Lightweight design aids simple handling cutting and installation with long term reliability.

• Internal diameter: 300mm
• Outer diameter: 360mm
• Height: 600mm
• Material: Volcanic pumice concrete
• Fire resistance: Up to 1000°C
• Installation: Socket up. Lip-glue seals. Surround with minimum 15mm LECA insulation by builder using brickwork or blockwork
• Compliance: CE certified to EN 1857. Document J compliant. HETAS compliant

This pumice liner is available for order and fits architect-specified projects with large flues.