Solv Group contracted John J Doyle Ltd to design, supply and install a new flue system to suit six 150kW gas-fired condensing boilers.
During the design stage, John J Doyle Ltd carried out flue sizing calculations to determine the overall common header size if all six boilers were combined. Due to space constraints in the boiler house and the project timeline, one common header system was not suitable so two separate headers provided an ideal solution. Two separate headers allowed John J Doyle Ltd to utilise stock materials to meet the overall programme of works and provided additional space within the plant room.
The 200mmØ MG flue header systems were installed increasing to 250mmØ Dinak DWJ twin wall which exited through the plant room ceiling. Each boiler has a non-return valve internally fitted to prevent back pressure on the boiler. New lead slate flashings were installed and weathered around the flue.
The overall installation was completed within three days to meet the scheduled programme of works.
Upon completion of the M&S Bangor project, John J Doyle Ltd was awarded a contract for an additional M&S location at Forestside Shopping Centre in Belfast.