What is flue liner for? Flue liner is used to line an existing chimney when installing a stove in a fireplace. It is not insulated and must not be used externally or through walls, for this you need twin wall flue. Do I need flue liner? Flue liner is super hard wearing, relatively cheap, easy […]
Size Guides
Twin wall flue size guide
1. Pipe and elbow diameters With twin wall flue pipe, the internal and external diameters are different. This is because they have 1 inch of insulation surrounding the inner pipe that makes the outer pipe 2 inches larger than the inner pipe. The diameters referred to always relate to the INTERNAL diameter of the pipes […]