Why a complete-system approach delivers better long-term performance

Each project should start with understanding the requirements of the building and the objectives the client is looking to achieve. No matter the building type; new build, refurbishment, system replacement or plant room upgrade, the first step is always to identify the site’s unique challenges and objectives. All sites have a variety of different requirements, which could include heating demand, domestic hot water (DHW) needs, available plant room space, existing infrastructure, energy efficiency goals, future expansion plans and budget considerations. Without a clear understanding of the challenge, even the most advanced technology may not deliver the desired outcome. Taking a complete-system approach ensures every recommendation is based on the building’s specific requirements rather than a single product or technology.

Site surveys provide a much more detailed understanding of the building and existing systems. They are an important part of a complete-system approach and help to identify practical considerations which may have been overlooked. Space restrictions, access requirements and plant room layouts can be better understood through an in-person site visit, meaning solutions can be developed based on the unique requirements of the physical space. Additionally, site visits allow for a much clearer understanding of the existing systems in place. This enables us to recommend solutions that work with the existing infrastructure, while also identifying opportunities for optimisation, upgrades and improvements to maximise system efficiency. 

Once the building requirements are understood, technical expertise helps translate these into practical solutions. At Hoval, our sales and technical teams work closely to assess the available options and identify the most appropriate solution for the application. Working collaboratively ensures that system recommendations are based on operational requirements, performance expectations and long-term objectives rather than simply choosing a particular technology. 

No single heat source is suitable for every building. Hoval offers a wide range of technologies, including the UltraGas and TopGas gas-fired boiler ranges, UltraOil condensing oil boilers, Belaria fit and Belaria pro air source heat pumps, as well as hybrid solutions that combine multiple technologies. The key is identifying a solution that meets the building's current operational requirements while also supporting future needs. The aim is not to promote a single technology, but to identify the solution that best matches the application. 

In addition to space heating, domestic hot water (DHW) is one of the most significant contributors to a building’s energy demand. Usage patterns, peak demand and operational requirements vary considerably from site to site, with the needs of a hotel differing greatly from those of a school, leisure facility or office building. Hoval offers a comprehensive range of DHW solutions, including cylinders, buffer vessels, plate heat exchanger systems, stored hot water systems and on-demand DHW technology. This wide-ranging portfolio provides options to suit diverse application requirements, selecting the most appropriate solution not only ensures the hot water demands of the site are met, but also maximises energy efficiency, system reliability and occupant comfort. 

Distribution systems and hydraulic design also play a significant role in the effectiveness of the heating system. Even the most efficient heat source can underperform if the wider system has not been properly considered. Flow rates, hydraulic separation, distribution efficiency, compatibility with existing infrastructure and future system expansion are all things that should be carefully considered, as these can affect the overall performance of the heating system. Choosing a properly integrated design helps maximise system performance and reliability over the long term, and a complete-system approach ensures that heat generation, distribution and system hydraulics are designed to operate efficiently together.

In addition to the system itself, modern controls are becoming increasingly necessary to ensure operators gain the maximum benefits from their investment. Using a modern control system comes with many benefits. Not only can these systems support optimised performance and improved energy efficiency, but they can also provide greater visibility of system operation and make fault identification easier. Taking a complete-system approach means considering not only how heating and hot water systems are designed, but also how they are monitored and managed over time. HovalSupervisor cloud enables remote monitoring of connected systems, allowing users to access performance data, identify potential issues and gain greater insight into system operation. This level of visibility can help building operators make informed decisions, improve operational efficiency and maintain system performance throughout the life of the installation. 

The project doesn’t end when equipment is installed. At Hoval, commissioning is carried out by our own engineers, helping ensure systems are configured correctly from day one. Ongoing access to technical expertise, genuine spare parts, planned maintenance and service support from a single source provides continuity throughout the life of the installation, helping maintain performance long after the project has been completed. This continuity of support is a key part of a complete-system approach, helping systems maintain their performance throughout their operational life.

System performance is rarely determined by a single product. It is the result of multiple decisions made throughout the project lifecycle, from system selection and hot water design through to controls integration, commissioning and ongoing support. By taking a complete-system approach, Hoval helps consultants, contractors and building owners develop systems that work together as a complete package. The result is improved performance, greater efficiency and long-term reliability, delivering value throughout the life of the building.