This extensive school complex, spread over multiple buildings, had inherited a district heating system from the site’s previous occupiers. The system had become life-expired with poor insulation, leaks, and long lengths of buried ducting causing considerable energy losses.
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Asters were chosen to carry out replacement of the installation.

Our remit was to isolate and disconnect the incoming district heating pipework & install energy-efficient condensing boilers as the source of heating. In order to do this we had to extend an existing gas main to serve the new boilers and fit new insulation to the pipework.

Aster Maintenance had to design the boiler room layout & pipework, co-ordinate this with the new BMS panel that was also being fitted, and commission the system.

The work included replacement control valves to regulate the heating & hot water in the building. The existing pumps were replaced with energy-saving inverter-driven pumps, offering further economies in service.

​All this work had to be undertaken during a school holiday period, with the system available for service by the first day of the following term. Careful co-ordination of all the various trades involved in a project of this complex nature was required.

Aster Maintenance were tasked with carrying out a partial replacement of the heating plant supplying the main terminal building and one of the aircraft maintenance hangars.
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The existing modular boilers were functional but showing obvious signs of wear-and-tear. They were also starting to require extensive repairs to remain safe and serviceable.

As replacements, Asters installed two new Hamworthy Wessex ModuMax Mk3 boilers together with new flues. The main challenge that we faced was that two of the existing boilers were to be retained, working alongside the new units. This meant that the boiler pipework had to be specially modified, and new flueing arrangements installed.
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These potential headaches were successfully overcome and the new boilers are now working alongside the two retained older units, helping the customer to realise energy savings from their more efficient operation.