London, UK

Alan Treacy, Partner at Hoare Lea

Project Lead:
Alan Treacy

Tight-timescale turnaround.

Burrells Wharf is a heritage riverside residential development located on the Isle of Dogs in London’s Docklands. The development has 320 apartments in seven blocks, all of which are served by low-temperature hot water generated by the central gas boiler system.

Quick assessment.

Our Operational Engineering team was asked by the client to specify, tender, and project manage the replacement of the life expired and failing boiler installation of three 800kW Hoval steel shell boilers. The existing Ener-G Building Management System also required replacement.

The project had to be undertaken when the heating system was shut down during the summer. There was an unmovable ‘heat-on’ date, which created a short window of opportunity for us to work.

We arranged for the pressure testing and inspection of the existing flues, enabling these to be retained and reused by the new boilers. We also reviewed the originally-installed heating capacity in relation to the site requirements and determined that this could be reduced.

Improved systems.

The solution we provided was to decommission the existing boilers, primary LTHW pumps, and BMS, replacing them with two 600kW and one 750kW Hoval steel shell boilers with inverter driven pumps. Further to this, a new trend-control system was installed to control the boiler system and secondary pumping systems that service each of the blocks, resulting in much improved temperature control and system operating efficiency. Finally, we made improvements to the boiler-room ventilation system and safety systems to meet current regulations.

Our efficient way of working meant the new system was commissioned and operating successfully by the start of the autumn ‘heat-on’ date.