BOILERS, PUMPS & VALVES


Global Warming Potential (GWP) of 0.02 and zero Ozone Depletion Potential (ODP). From an energy efficiency perspective, the controls strategy was particularly important. The system is managed through our Master Controller, which communicates directly with the club’s existing building management system via BACnet. To optimise operational performance andminimise unnecessary energy consumption, the installation continuously monitors multiple pipework points alongside five buffer sensors to prevent short cycling andmaintain smooth, efficient operation. The site also contains several heating circuits operating at different temperatures and temperature differentials. To helpmaintain the heat pumps within their optimum operating range, we incorporated a three-port valve arrangement to provide greater control over the temperature differential experienced by the heat pumps.


RETROFITTING RATHER THAN REPLACING A key part of improving the overall sustainability of the project was retaining asmuch of the existing heating infrastructure as possible. Following assessment, we found that the existing air handling units, radiators and pool heat exchangers remained in good condition and could be successfully integrated into the new low carbon heating system. By reusing these assets, we reduced installation costs, minimised disruption on site and avoided unnecessary waste going to landfill. All new equipment, including the heat pumps,


controls and ancillary components, was installed within a new external compound and mini


plantroom. Importantly, the existing gas boilers remained operational until the new system had been fully commissioned, ensuring the club could continue operating normally throughout the installation period. One of the biggest barriers organisations face


when transitioning to low carbon heating is the upfront capital investment required. To help address this, the project utilised our Heat-as-a-Service (HaaS)model, which removes the need for upfront capital expenditure while also incorporating ongoing servicing and maintenance support. This approach enabled David Lloyd Clubs


Harrogate to progress with its decarbonisation strategy far more quickly, without the financial challenges often associated with large-scale heating system replacement projects.


DELIVERING ONGOING ENERGY PERFORMANCE Following project completion, responsibility for the installation transferred from our construction team to our service division, which continues to provide remote and on-site support to ensure long-term operational performance. Six months into operation, monitoring data shows the system is achieving a Coefficient of Performance (COP) between 2.5 and 3.2, in line with the original design expectations. LeeManley, head of sustainability at David Lloyd


Clubs, said: “The Clade team were great to work with, theymade the process as easy as it could be and did not interrupt our club operations.We’re very pleased with the heat pumps so far, they have been


reliable and consistentlykeptthe club warm.We are continuing to work with Clade to optimise the performance over the coming winter period.” For us, the project demonstrates how commercial


leisure facilities can successfully transition away from fossil fuel heating while improving energy efficiency, reducing operational carbon emissions and maintaining high levels of comfort and reliability for building users.


Clade Engineering Systems www.clade-es.com


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ENERGY & SUSTAINABILITY SOLUTIONS - Summer 2026


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