The Isokern 450mm internal diameter rebated liner serves very large open solid-fuel fires in new-build installations.

This pumice liner is integrated into masonry construct using brickwork or blockwork as the chimney stack is constructed for cost effective application. Its pumice build delivers high insulation to attain performance temperatures quickly and retain heat longer for performance maintenance. Lightweight design supports easy handling cutting and installation with durability.

• Internal diameter: 450mm
• Height: 1000mm
• Material: Volcanic pumice concrete
• Installation: Rebated joints. Accommodate minimum 15mm LECA insulation by builder via brickwork or blockwork
• Compliance: CE certified to EN 1857
• Use: Refer to Isokern open-fire calculator for confirmation

This pumice liner is available for order and suits oversized flue requirements in trade projects.