Darco WKL Flexible Chimney Liner Ø150 mm Stainless Steel Double-Wall AISI 316L/304 T600 N1 V2 G Multi-Fuel

With a maximum operating temperature of 600°C and a robust double-wall stainless steel construction, this flexible chimney liner is engineered for demanding flue gas conditions. The inner wall is made of AISI 316L for superior corrosion resistance, while the outer wall is AISI 304 for durability. Suitable for gas, oil, wood, coal, and pellets, it meets EN 1856-2 standards and carries CE certification. Ideal for relining existing masonry chimneys, it ensures safe and efficient exhaust of combustion gases.

Overview

The Darco WKL flexible chimney liner is designed for internal installation in masonry chimneys. Its high flexibility allows it to navigate bends and offsets, making it suitable for both straight and curved flues. The double-wall construction provides an additional layer of safety and insulation, reducing the risk of condensation and improving draft. The liner is sold per meter, allowing you to order the exact length required for your project.

What stands out

• Double-wall design with AISI 316L inner and AISI 304 outer for longevity.
• High temperature resistance up to 600°C (T600).
• Corrosion resistance class V2 for wet operating conditions.
• Soot fire resistant (G) for added safety.
• Multi-fuel compatibility: gas, oil, wood, coal, pellets.
• CE certified and compliant with EN 1856-2.

Technical details

• Nominal diameter: 150 mm (Ø150).
• Inner wall thickness: 0.12 mm.
• Outer wall thickness: 0.12 mm.
• Pressure class: N1 (negative pressure).
• Installation type: internal.
• Product type: flexible chimney liner.
• Brand series: Darco WKL.

Our verdict

A reliable and certified flexible liner that combines high-temperature performance with excellent corrosion resistance, making it a solid choice for most residential and light commercial chimney relining projects.