Manchester Crown Court

The Project:

This project involved the design, supply and installation of 2 no. flue systems and Furanflex liners to serve 8 No. banks of Viessmann Condensing gas fired boilers within Manchester Crown Court. The project was particularly challenging due to the existing 2 No. flues which were completely enclosed throughout 4 floors of the building before connecting to a central riser within a hidden void and continuing a further 25m to termination via an ornate masonry chimney. Due to the location and height of the chimney it was deemed that a full scaffold would not be possible and as such all high-level works needed to be completed by steeplejacks adding further challenges to the project.

Design:

Key factors for the design included:

• Existing flues to be located and surveyed as they ran throughout the building to establish the maximum installable flue sizes and associated builders works.
• Hidden void where the 2 No initial risers joined into a central location to be located and opened out to allow access for the installation.
• 2 No. flue systems to be installed, each flue to serve 4 No. banks of Viessmann condensing gas fired boilers.
• Furanflex liners to be installed from termination level down to plant room to minimise builders work and disruption to the pen and operating Crown Court facility.
• Terminations of systems to have a minimal visual impact so as not to require planning permissions.
• All Clean Air Act and IGEUP10 guidance to be followed to ensure a compliant system.

Product Specification:

The following product specification was used throughout the project:

• Primary Connections – Poujoulat ZI – Viessmann plastic cascade header kits connecting each set of 4 No. banks of boilers into a single outlet.
• Plant Room Flue Connections – Poujoulat Condensor – 316 grade stainless steel continuously welded flue system installed c/w joint seals.
• Risers – Furanflex Black Composite Liners