Chimney Liner Increasers make the transition from a single wall stove pipe section (enamel pipe) with a smaller diameter to a steel flexible chimney liner with a larger diameter. The 125mm to 150mm Chimney Liner increaser makes the transition joining a stove pipe section with a 125mm diameter to a flexible liner with a 150mm diameter. It is strongly not recommended that the transition goes in the opposite direction.
This product is frequently purchased as non-DEFRA approved stoves need to incorporate a 6” liner where there installation is going up through a chimney and the stove outlet is only 5” in diameter.
A metal connector which connects the flexible chimney liner to single wall pipe at the base of the stack.
Connects 150mm (6 inch) Flue Liner to 125mm (5 inch) Black Pipe / Vitreous Enamel / 1mm Stainless / Single Wall flue at the bottom of the chimney stack.
Made from 316 grade stainless steel, it has integral drain hole to let the condensates flow back into the flue.