The Isokern 150mm internal diameter liner support block forms the load-bearing base for pumice liner systems serving wood-burning stoves and Class 2 gas fires in new-build projects.

This support block allows perfect transition from flue pipe to chimney flue liner with purpose made adapters. Installers will find it maintains alignment and accommodates minimum 15mm LECA insulation in the masonry void by builder using brickwork or blockwork. Pumice material offers high insulation lightweight handling and long life compliance.

• Internal diameter: 150mm
• Dimensions: 310mm square x 75mm high
• Weight: 7kg
• Material: Volcanic pumice concrete
• Fire resistance: Up to 1000°C
• Installation: Sits on structural slab or support plate on lintels.
• Compliance: CE certified to EN 1857. Document J compliant