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Swedish heat pump manufacturer, Qvantum, has launched a new water- to-water heat pump in the UK, designed to meet the challenges of decarbonising cities. With the announcement of the Future Homes Standard and the Warm Homes Plan, heat pumps are the leading choice for sustainable homes but solutions for urban areas can bring extra complexity, due to issues of space, noise and air quality. The compact QG water-to-water heat pump is a great fi t for developers working with 5th-generation ambient heat networks and shared boreholes in new builds and retrofi ts in cities. With a wide operating envelope, the QG is suitable for a mix of energy sources, from ground arrays and surface water to centralised plant and waste heat from nearby assets.
The QG delivers heating, cooling, and domestic hot water in a single integrated unit, featuring an accumulator tank that acts as a thermal battery with heat storage up to 90°C. With FlexReady functionality and API connectivity, it optimises energy use by operating during periods of low electricity prices or renewable surplus and is ready for fl exible energy markets. Domestic hot water is produced instantly via a heat exchanger, eliminating legionella risk and simplifying water quality requirements. The QG uses R290 refrigerant and is available with an in-built source-side pump for use in individual or shared ground source projects or with a PIC-valve (QG-C) for use in an ambient loop, both as 7kW and 14kW options. With its intuitive controls, the QG gives residents across our cities the chance to access cutting-edge technology and be part of a stable, climate-friendly energy future. QG combines a compact footprint, a natural refrigerant with low climate impact, and advanced digital and modular capabilities to deliver a modern heating solution that supports the transition to more sustainable energy systems.
Kooltech
Kooltech has concluded its City Multi YXM technical roadshows, welcoming industry professionals from the South Coast to Glasgow. The nationwide series marked the introduction of Mitsubishi Electric’s next-generation R32 VRF YXM. With a SCOP of up to 4.71 and SEER of up to 7.89 (standard-effi ciency model, size 350), and a SCOP of up to 8.81 in the high-effi ciency model (size 300), the YXM represents more than a refrigerant transition; it is a complete redesign of the City Multi system. Designed to meet the evolving demands of modern buildings, YXM delivers enhanced effi ciency, simpler installation and greater application fl exibility, setting a new benchmark for VRF performance. The YXM features a new box-shaped chassis that reduces its footprint, full-length heat exchanger coils and an improved defrost recovery mode. These design advancements position YXM as a leading solution for a wide range of building applications, including high-density residential developments and urban locations where space, effi ciency and low sound levels are essential.
The inclusion of shut-off valves in the new BC Box, together with accessible leak detectors, simplifi es compliance with A2L system requirements and signifi cantly reduces design complexity and installation time. This approach enables consultants to meet BS EN 378 requirements more easily and achieve additional BREEAM credits without compromising system performance or design fl exibility.
Kooltech works closely with clients from the outset, using initial project details to provide more precise, tailored system selections, saving customers valuable time. Recently, all sales managers and technical staff have completed training on the R32 VRF YXM system, ensuring unmatched technical expertise and hands-on support. Attendees at the roadshow also engaged with JAVAC, which
showcased its latest range of A2L and A3L refrigerant handling tools.
www.kooltech.co.uk
1/9/25 13:58
34 July 2026 •
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