IN FOCUS


Hamworthy Heating introduces updates to its Varmax Mk2 floor-standing boiler range


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amworthy Heating, technical experts in commercial heating and hot water products, is pleased


to introduce the latest updates to its Varmax floor-standing condensing boiler range. Designed to improve installation and maintenance efficiency, the new and improved Varmax Mk2 offers greater flexibility, enhanced performance, and easier servicing for a wide range of commercial heating applications. The latest updates to the Varmax Mk2


range are designed to simplify installation and maintenance and minimise downtime. They include a new touch-screen interface for intuitive operation and seamless navigation, and an improved casing design that allows easier access to key components. Built for long-term reliability, the Varmax


Mk2 floor standing condensing boiler range features a durable, corrosion- resistant stainless steel heat exchanger, backed by a five-year warranty, offering excellent resistance to varying system water conditions. Available in six models, the range provides accurate heating system load matching, with outputs of up to 450kW from a single unit and the option to cascade multiple boilers for larger installations. Incorporating an advanced design with a built-in flue gas non-return valve for optimal system


efficiency and a simplified flue system and well-insulated construction to reduce standby losses, the Varmax Mk2 offers an energy-efficient solution for buildings with high demands, such as schools, offices, and healthcare facilities. Furthermore, with no requirement for a dedicated primary circuit and no minimum flow rates, the Varmax Mk2 also offers customers valuable time and cost-saving installation benefits. As part of Hamworthy Heating’s commitment to providing innovative solutions that meet the evolving needs of its customers, the new and improved Varmax Mk2 floor standing condensing boiler range provides a flexible and reliable heating solution. For more information, please visit: www.hamworthy-heating.com/ or call 01202 662 552.


www.hamworthy-heating.com unicrimp.com


Panasonic ECOi-W Delivers Sustainable Cooling for East London Crown Court


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200-year-old listed building that is home to an East London Crown Court, faced significant challenges with its outdated and inefficient air conditioning system that consisted of two large old chiller units and were looking for a


more sustainable and energy efficient solution. Installers, Sub-Cool FM, specified five Panasonic 170 kW ECOi-W R32 air source


heat pump units that operate in cascade. The project delivered a modern, sustainable solution that overcame historic infrastructure constraints, improved energy efficiency by 50%, and ensured long-term reliability for this important civic site. The Crown Court’s original air conditioning system was not only inefficient but also difficult to upgrade due to the building’s listed status and the age of its pipework. This increased the risk of corrosion and leaks, while water quality issues further threatened the longevity of any new system. Installers Sub-Cool FM specified the five 170kW Panasonic ECOi-W R32 units, chosen for their high energy efficiency, modular and compact design, and reduced environmental impact. To address the risk of corrosion in the pipes and the substandard water quality, hydraulic separators were installed for the secondary circuit, paired with a plate heat exchanger to protect the new equipment and extend its lifespan. Jacob Swei, Managing Director of Sub-Cool FM, commented; “The Panasonic system


has delivered a solution that is 50% more energy efficient than the original units, significantly reducing both energy waste and emissions. The ECOi-W R32 units utilise a refrigerant with a lower environmental impact and are engineered for straightforward servicing and maintenance. Importantly, the installation was completed with minimal disruption to the building’s historic interior and existing infrastructure. By incorporating automated filtration and hydraulic separation, we’ve ensured the system is protected from corrosion and water quality issues, safeguarding reliable, long-term performance for this landmark site.” The Panasonic ECOi-W R32 units offer capacities from 50–170kW, operate in a wide


temperature range, from as low as –15°C for warmer temperatures, and 48°C for cooling. The units feature a customisable, modular design suitable for heritage sites and modern buildings alike. The Panasonic units were selected for their flexibility and quiet operation. “At 25–50% capacity, they are virtually inaudible,” says Jacob Swei. “Utilising multiple cascade control connected heat pumps increases system flexibility, maximises efficiency, plus allows run hours across multiple units to be shared by each unit and in turn prolonging the life of the units.” For more information on Panasonic ECOi-W R32 air source heat pumps, please visit


https://www.aircon.panasonic.eu/GB_en/ranges/chiller/ecoi-w-r32-outdoor-units/ or to find out more about Sub Cool FM, please visit https://sub-cool-fm.co.uk/.


https://holdings.Panasonic/global/ Read the latest at: www.bsee.co.uk BUILDING SERVICES & ENVIRONMENTAL ENGINEER NOVEMBER 2025 39 Woodscrew Bit for Precision and Power Unicrimp’s New Squarelock 6” U • •


nicrimp, part of the Scolmore Group, unveils the latest addition to its Q-Crimp fixings range - the Squarelock 6” Woodscrew Drill Bit – an essential tool for electrical contractors and installers working with SQ2 square-drive fasteners. Engineered for maximum performance, the Squarelock


Woodscrew Bit ensures a snug, secure fit, offering unparalleled torque, reach, and reliability for even the toughest installations.


Key features include: • •


6-inch length perfect for tight or recessed spaces where conventional bits can’t reach.


Precision-cut SQ2 square tip engineered for a snug, accurate fit to reduce cam-out and minimise screw stripping.


Locking design that provides a secure grip within the drill or driver, reducing wobble and enhancing stability.


• Made from durable carbon steel (1018A) featuring a shock-resistant SQ2 tip, built to withstand repeated heavy-duty use.


Power tool compatible, standard 1/4” hex shank ensures easy compatibility with most power drills and drivers.


Whether you're installing cabinetry, framing, or securing decking, the Squarelock 6” Woodscrew Drill Bit ensures smooth, confident fastening. Additionally, the Squarelock Woodscrew Bit is packaged individually in eco-friendly green paper packaging, reflecting Unicrimp’s commitment to sustainability while delivering exceptional value. For more information visit Unicrimp’s website - https://unicrimp.com/ - or download the Scolmore Group app.


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