IN FOCUS


New Ideal Commercial Heating CPD builds confidence around R290 heat pump safety


I


deal Commercial Heating has launched a new CIBSE approved CPD designed to help heating


professionals understand the safety considerations associated with commercial air source heat pumps that use R290 refrigerant. Entitled ‘Safety considerations


for R290 commercial air source heat pumps: Understanding the practical application of flammable refrigerants in commercial heating’, the CPD is aimed at consultants, designers, specifiers, contractors and engineers involved in the design, installation and maintenance of commercial heat pump systems. As the commercial heating


sector transitions towards lower global warming potential (GWP) refrigerants, R290 is becoming an increasingly common choice. The natural refrigerant, commonly known as propane, has a GWP of just three and an ozone depletion potential of zero, while also supporting high operating temperatures suitable for commercial heating applications. As an A3 refrigerant, meaning it has low toxicity but high flammability, R290 requires an


understanding of and confidence around safe design including risk assessment, specification, installation, commissioning and ongoing maintenance. Ideal Commercial Heating’s new CPD has been designed to help close knowledge gaps and provide clear, accessible guidance for those working with or considering R290 systems. The CPD provides an overview of refrigerant classifications and the regulatory framework surrounding


the use of flammable refrigerants. A major focus of the CPD is the practical application of exclusion and safety zones around commercial


R290 heat pumps. It explains how the required zones are influenced by factors including refrigerant charge, possible leak scenarios, ventilation conditions and the geometry of the installation. The CPD also considers the way propane behaves in the event of a leak. Practical examples cover


several common commercial installation arrangements, including free-field ground installations, units positioned in front of walls or within corners, cascade installations and flat-roof applications. Further topics include minimum service and efficiency clearances, leak detection, hydraulic circuit


safety and the use of deaerators. The presentation also explains why competent maintenance is essential throughout the operational life of an R290 systems.


idealcommercialboilers.com/cpd-courses


ESP SETS NEW BENCHMARK WITH INDUSTRY-FIRST TWO-YEAR ON-SITE WARRANTY FOR ESPIRE RANGE


E


SP has announced the immediate launch of its new two-year


on-site warranty for eligible products within the Espire fire and carbon monoxide alarm range, setting a new standard for aftersales support in the domestic fire safety market. Believed to be the


only warranty of its kind currently offered in the sector, the new initiative reinforces ESP's commitment to supporting contractors beyond the point of installation by providing direct on-site assistance in the unlikely event of a product fault. The Espire range has been developed to deliver reliable fire and CO protection solutions for


residential applications. While product warranties are commonplace within the industry, ESP's new on-site warranty goes a step further by offering practical support at the installation location, helping contractors minimise disruption, save valuable time and maintain confidence in completed projects. Neil Baldwin, Managing Director of ESP, part of Scolmore Group, commented: "The Espire range has established a strong reputation for performance, reliability and ease of


installation. With the launch of our new two-year on-site warranty, we're taking customer support a step further. We understand that contractors value not only dependable products, but also the reassurance of knowing they'll receive support should an issue arise. To our knowledge, no other manufacturer in this sector currently offers this level of on-site warranty support, making this a significant benefit for installers choosing Espire." To activate the warranty, customers must register eligible Espire products via the dedicated online


registration portal. The on-site warranty applies only to products and sites that have been successfully registered. The registration page also provides full details of eligibility requirements, terms and conditions, and an overview of how the warranty process operates. Eligible products can be registered at: https://espireuk.com/on-site-warranty


www.espireuk.com 34 BUILDING SERVICES & ENVIRONMENTAL ENGINEER NOVEMBER 2026


STELRAD’S COMPACT RADIATOR RANGE EXTENDED STILL FURTHER


T


he new 500mm high range of Compact radiators has arrived, to extend the already largest


range of radiators available in the UK and Ireland. The Compact radiator range from


Stelrad Radiators has grown even more with the addition of a further 26 models – in its new 500mmm high range – thirteen in K1 format and thirteen in K2 format in sizes from 400mm x 500mm right up to 2000mm x 500mm and from 1137 Btu/hr output up to 10,195 Btu/hr output. These additions are being made to the range in response to customer feedback with consistent requests for a 500mm height option particularly from merchants and installers looking for more flexibility in like-for-like replacement opportunities in heating system replacement projects. The addition of the 500mm height range adds strength to Stelrad’s offer for social housing


and contract-led projects, where specific dimensions are often required to meet refurbishment specifications. And extending size and output options supports decarbonisation – a broader range gives customers


more choice when designing low temperature systems, supporting Stelrad’s wider decarbonisation strategy by enabling better system optimisation and improved heat pump compatibility. Marketing Communications Manager Sarah Baker says: “As we celebrate our 90th anniversary, it’s a


good moment to reflect on how the Compact range has grown. Over many years we’ve continued to add new sizes and formats, shaping it into one of the most comprehensive ranges available, offering unmatched choice for specifiers and installers. These particular additions are getting plaudits from our contract customers but alongside our 200mm, 900mm and 1200mm high ranges and our K3 offerings the selection available for customers embracing heat pump technology is now pretty much complete.” To find out more about these new radiators go to www.stelradprofessional.com. For more information email marketing@stelrad.com. Alternatively, you can also see regular updates from Stelrad on X @ Stelrad and Facebook @StelradRadiators.


www.stelradprofessional.com


New Modumax mk4 boilers installed at the University of Huddersfield


H


amworthy Heating has supplied its latest range of Modumax mk4 floor


standing boilers to the University of Huddersfield, as part of the university’s ongoing investment in improving efficiency and sustainability across its campus. The new boilers have been


installed at two key locations, Queen Street and The Laura Annie Willson Building. With limited space and access at both sites, the university needed a solution that could efficiently deliver the required heating output while making best use of the existing plant room layouts. The chosen system includes a


two stack configuration with a total output of 294 kW for the Queen Street plantroom, together with a three stack of 762 kW serving the Laura Annie Willson building. “The Laura Annie Willson plantroom is a great example of how mk4 boilers can deliver the required output, even in space restricted environments. By making full use of the available space, we were able to achieve a total output of 762 kW within a compact footprint,” explains Bob Smith, Hamworthy Heating. With access to both plant rooms restricted, the modular design of the mk4 boilers played a key role in


this installation. Each unit was dismantled into individual sections, which were transported through the available access routes before being reassembled in position. The modules were then vertically stacked to make the most of the available plant room space. This allowed the boilers to be installed without the need for significant alterations to the plant rooms. Available in five models with outputs from 97 to 254kW (50/30°C), mk4 boilers provide a 5:1 turndown ratio per module, low Class 6 NOx emissions and up to 95% gross seasonal efficiency. To assist facilities teams, mk4 boilers also feature a user-friendly full-colour touchscreen interface to simplify day-to-day operation and maintenance. Luke Brearcliffe, project manager, Gasmech Services Limited says: “The new boilers have performed


really well since installation, particularly over the winter when they handled very cold conditions without any issues.”


www.hamworthy-heating.com Read the latest at: www.bsee.co.uk


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