
Construction of a new three-flue steel chimney system
25.08.2026
As part of this project, an existing chimney system was extensively modernized. The work included the dismantling of three existing chimneys, the construction of a new concrete foundation, followed by the installation of a new, self-supporting three-flue steel chimney.
A particular challenge was to plan and carry out the work in such a way that ongoing operations at the connected wastewater treatment plant were affected as little as possible. The three existing chimneys were therefore dismantled one after another. During the work, the remaining chimneys could continue to be used.
The old chimneys, each approximately 13.5 metres high, were professionally dismantled and disposed of. The area was then prepared for the new foundation. This included excavation work and the construction of a massive reinforced concrete foundation, including a specially designed anchor cage, which securely anchors the new chimney to the foundation.
A new three-flue steel chimney with an overall height of 28 metres was then erected on this foundation. The system features three internal flue pipes, each with a diameter of 250 mm. The structure is self-supporting and therefore requires no additional guy wires or bracing.
The wastewater treatment plant's three existing flue gas lines were connected to the new chimney. The required connecting ducts, including thermal insulation and protective cladding, were newly fabricated and professionally installed. The new chimney system also includes an access ladder with a safety system and a circumferential working and maintenance platform. This ensures safe access to the relevant areas of the chimney for future inspection, maintenance and repair work.
In addition to the actual installation work, the project also included the technical and structural design, workshop and installation planning, as well as the coordination of the individual construction phases.
The result is a modern, compact chimney system tailored to the plant's operational requirements, replacing three older individual chimneys – from initial planning and foundation construction to structural steelwork and final commissioning. We would like to thank our customer for the trust they placed in us and our team for their excellent work!












































































































