150mm ID Pumice Liner

Self-builders, Architects and Builders choose the Isokern 150mm ID pumice chimney liner for its versatility in suiting smaller appliance flue outlets (typically 125mm to 150mm flue collar). This size is ideal for most UK stoves up to around 8kW including wood-burning multifuel stoves and Class 2 gas fires, where efficient draught is crucial for optimal performance. Sourced from volcanic pumice at Iceland's Hekla volcano these liners are remarkably lightweight making them easy to handle up scaffold and cut on site, even rebated cuts can be achieved. Their natural structure provides superior insulation allowing flue gases to heat rapidly which enhances stove efficiency, this reduces condensation and promotes cleaner burns with lower emissions. Installation involves straightforward lip-glue joints between pumice items and a surround insulative fill of expanded clay aggregate (LECA) ensuring a durable setup that complies with BS EN 1857 Document J and HETAS standards. Compared to clay or concrete alternatives pumice is simpler to repair if chipped during construction – just reapply lip glue. Its light and can comes in a vareity of sizes to suit its application, where most flues are now too large for the intended appliance. For accurate quantities use our Isokern liner calculator to determine quantities and a comprehensive list of components. If your project involves open fires you will be looking at the 200mm flues upwards. Pair with stainless steel adaptors for perfect and secure connections to stove chimney connecting pipes. UK stock available for fast delivery.