PHAM NEWS | SEPTEMBER 2024 32 Radiators & Towel Warmers


Matching radiators to heat pump systems


With the ongoing transition towards heat pump systems and other low temperature heating solutions, installers need to consider what heat emitters will best maximise their performance. Steve Charles from Jaga UK highlights some of the energy efficient options available.


T


he UK heating industry is undergoing a major transformation as we pivot towards


low-carbon heating systems, and heat pumps are playing a critical role in this transition. Last year, over 35,000 air


source and ground source heat pumps were registered by MCS. Although this number falls short of the government’s target of 600,000 installations per year by 2028, the upcoming 2025 Future Homes Standard–mandating that energy-efficient heat pumps or heat networks become the default heating source for all new homes – will likely accelerate progress towards this goal. This shift, however, presents


new challenges as it’s not just the heat source that needs to change. Heat pumps are most efficient at lower flow temperatures, with most systems set to operate between 35 and 45°C. So, selecting and sizing heat emitters that can deliver comfort and performance at these lower temperatures is vital to maximise heating system performance.


Heating options It is a common misconception that when installing a heat pump, you have two options to heat the space: significantly larger steel panel radiators – often about 2.5 times the size of the originals – or underfloor heating.


Although traditional steel


panel radiators have long been a reliable choice in the heating industry, the much larger surface area required to provide thermal comfort at lower temperatures can be impractical, particularly in settings where space and design are major considerations. Underfloor heating (UFH),


Steve Charles Jaga UK technical sales manager


Selecting and sizing heat emitters that can deliver comfort and performance at lower temperatures is vital to maximise heating system performance


on the other hand, works well with low flow temperatures and can free up wall space. But as a high mass and high water content system, response times can be slow, resulting in energy inefficiencies and in many cases, overheating. Retrofitting UFH into existing buildings can also be complex and expensive, limiting its practicality to certain projects. However, available from Jaga


q Jaga’s new purpose-built eco facility in Herefordshire combines ground and air source heat pumps, together with solar PV and the company’s advanced heat emitters


are low-temperature heat pump radiators offer a compelling alternative to mitigate these challenges, without requiring oversized installations or compromising space. They are smaller, lighter, faster, and much more energy-efficient thanks to their low water content heat exchanger, which contains 90% less water than traditional steel panel radiators, and unique dynamic boost hybrid (DBH) fan-assisted technology, which increases heat output by up to 300%. We offer a range of models,


that can be wall-mounted, freestanding or recessed, as well as trench convectors and fan coil units, providing flexibility in installation for various building types and room configurations.


Cooling too We have also recently launched a new range of fan convectors designed to enhance the efficiency and versatility of low- temperature heating systems. The Briza Net Zero range is


ideal for modern buildings where both cooling and heating are essential. When paired with a heat pump, these units offer an energy-efficient and climate- friendly alternative to air conditioning, with both light and deep cooling (non-condensing and condensing) options for


p The new fan convector, the Briza XS Net Zero, offers a space saving heating and cooling solution


year-round comfort in the UK’s variable climate. Recognising that heat pumps


are most efficient at lower system design temperatures, the Briza Net Zero range has been optimised for this purpose. At flow and return temperatures of just 35/30°C (room temp 20°C), the Briza M Net Zero BASE-Line, our most powerful model yet, delivers a heat output of up to 2110W and a deep cooling output of up to 2575W at 7/12°C (room temp 27°C). This makes it an ideal choice for maximising system efficiency whilst maintaining indoor comfort. Compact and stylish, the


units feature a sleek design that seamlessly integrates into modern interiors. The XS model, at just 85mm deep, is one of the slimmest fan convectors on the market, making it perfect for spaces where size and aesthetics are paramount. Suitable for a wide range of


projects, the range is versatile in both installation and control, with various sizes and colour options and the flexibility to be wall or ceiling mounted. Designed with sustainability


in mind, the units feature a built-in EC motor for low energy consumption and an extended service life. The recyclable aluminium and copper heat exchanger, with hydrophilic coating, enhances cooling performance while minimising environmental impact.


Sustainability Sustainability is at the heart of our approach to product development and company operations. As well as the company


recently being certified as a Carbon Neutral Business by Carbon Neutral Britain, our new purpose-built eco facility in Herefordshire – housing our UK


offices, warehouse, showroom, and training space – serves as a living example of how high- efficiency, low-temperature heating systems can be implemented effectively. Equipped with both ground


and air source heat pumps, paired with our advanced heat emitters, the building showcases the potential of sustainable heating and cooling systems, and other renewable technologies such as solar PV which supports the facility’s energy needs and provides electric car charging for staff and visitors.


Low-carbon future The transition to low-carbon heating isn’t just about adopting new technologies; it’s about rethinking how we design and implement systems to maximise efficiency and sustainability. Our advanced heat pump radiators, including the Briza Net Zero range, offer a practical solution tailored to the needs of low-temperature systems and modern buildings. By adopting these technologies, the heating industry can work towards a future where comfort, energy efficiency, and environmental responsibility are seamlessly integrated. ◼ phamnews.co.uk/924/43


CUT TO THE CHASE


 Conventional steel radiators require a much larger surface area to provide thermal comfort at lower temperatures


 Jaga’s low water content radiators use DBH fan-assisted technology to boost heat output without needing to be oversized


 The new Briza Net Zero range is ideal for buildings which require both heating and cooling


 Jaga’s Herefordshire HQ serves as a working example of the benefits of sustainable heating and cooling solutions


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