To tackle the effects of hard water on low-temperature heating systems, Magnetic International has supplied demineralised water treatment equipment for a residential heat pump development in Newcastle upon Tyne.
The project involved the installation of 15kW heat pump systems with underfloor heating in a number of new-build homes by Bill Hewison Bespoke Homes. Local hard water conditions raised concerns about scale build-up, corrosion and long-term system efficiency.
To address this, mobile demineralisation filling stations and refill cartridges from Magnetic International were used during commissioning and subsequent system top-ups. The technology removes mineral ions from water before it enters the heating circuit, reducing conductivity and limiting the formation of deposits within components such as heat exchangers and pumps.
This approach met manufacturer water quality requirements while avoiding the need for chemical dosing during commissioning. The cartridge-based system also included colour indicators designed to show when replacements were needed.
The mobile filling stations have been developed for small to medium-sized heating systems, including heat pumps, where engineers may require a portable alternative to fixed plant room equipment.
Industry guidance, including VDI 2035 and BSRIA BG29, highlights the importance of water quality management in closed heating systems, particularly as the use of heat pumps and underfloor heating increases.
For many applications, particularly where small quantities of treated water are required regularly, this type of solution can provide a straightforward and cost-effective approach to an essential aspect of system care..
