The Viessmann 60/100 12.5m Chimney Flue Kit is engineered for use with open‑flued Viessmann heating systems requiring an extended vertical flue route. Designed to safely guide combustion gases up through a chimney or long vertical shaft, this kit provides a reliable solution for installations where the boiler is located far from the terminal exit point.

With a maximum flue length of 12.5 metres, it ensures proper draft, efficient combustion, and safe discharge of flue gases—ideal for applications such as multi‑storey buildings or retrofits using an existing chimney structure.

Constructed from high‑quality, corrosion‑resistant materials, this flue kit delivers dependable, long‑term performance while maintaining full system safety and ventilation integrity.

• Extended 12.5m flue capability
  Suitable for long vertical chimney or riser installations.

• Designed for open‑flued Viessmann systems
  Supports correct ventilation and draft performance.

• 60/100mm flue diameter
  Ensures efficient flue gas discharge across extended lengths.

• Durable and corrosion‑resistant construction
  Offers excellent reliability within chimney environments.

• Ideal for retrofit and multi‑storey properties
  Perfect when using existing chimneys or when a horizontal flue is impractical.

• Secure, stable component design
  Provides dependable connections throughout the flue run.

• Optimised for Viessmann boiler performance
  Ensures compatibility and maintains safe system operation.

• Flue Diameter:
  60/100mm system

• Maximum Length:
  Up to 12.5 metres (dependent on boiler model and draft requirements)

• System Type:
  Suitable for open‑flued installations

• Construction:
  High‑grade, corrosion‑resistant materials engineered for chimney environments

• Application:
  Vertical flue routing through chimneys or long shafts
  Supports safe removal of combustion gases in open‑flued setups

• Compatibility:
  Viessmann boilers designed for 60/100 open‑flued configurations
  (Refer to boiler documentation for exact flue allowances)