ELCO’s comprehensive portfolio of solutions is designed to meet the demands of all types of commercial buildings, and is supported by a dedicated field-based sales team and highly experienced technical department. From single product replacements through to the most complex commercial projects, ELCO remains the heating manufacturer of choice around the world.
“At ELCO, we are passionate about redefining commercial heating through advanced technology that ensures maximum performance, whilst reducing energy costs,” commented Edoardo Pauletta D'Anna, UK Managing Director, Ariston Group. “With innovation at the heart of our designs, ELCO products offer precision engineering, exceptional design flexibility, reliability and outstanding efficiency, providing tailored solutions for a wide range of applications.”
ELCO provides advanced commercial heating and power solutions, including:
1. Condensing Boilers: High-efficiency models with low NOx emissions, offering outputs up to 2,000 kW, such as the THISION S PLUS, THISION and TRIGON L PLUS, TRIGON XL and TRIGON XXL range.

2. Heat Pumps: AEROTOP air source heat pumps, ideal for hybrid systems with condensing boilers.
3. CHP Units: Compact, efficient VARION® C-POWER units certified for 40% hydrogen use.

This commitment to providing tailored, efficient, and forward-thinking heating solutions is not just theoretical – it is demonstrated in action across some of the UK’s most demanding commercial environments. A prime example of ELCO’s capabilities can be seen in the refurbishment project at 10 Upper Bank Street, where cutting-edge boiler technology played a central role in delivering long-term performance and sustainability benefits.
ELCO in action at 10 Upper Bank Street
Spanning more than 1 million sq. ft. and comprising 30 occupied floors and four basement floors, 10 Upper Bank Street required a modern, reliable and high-performance heating system to cope with the fluctuating demands of the building.
The refurbishment of the plant rooms was managed by the Projects Department of Engie. Commenting on the decision to choose ELCO boilers, Project Manager, Tim Mardell, explained: “We looked at a few products and narrowed it down to three, but it soon became clear that ELCO’s units were the preferred option for several reasons. Firstly, their ability to be disassembled into component parts allowed easy access in the restricted plant rooms. Secondly, the boilers’ performance easily satisfied several green issues for the project and, finally, the overall customer care offered was excellent.”
Chris Glover, Director at THD Consulting Engineers, the project M&E consultants, added: “This was an ambitious project that required a carefully designed, high quality heating system. There were several reasons why we selected the ELCO boilers, but one of the most important was their high levels of sustainability. I was really impressed with their overall performance, as well as the extremely low NOx levels on offer, so I will certainly be considering them for other projects.”

To fulfil the system requirements, 15 ELCO TRIGON® XL 570 boilers were installed over three floors - four boilers on the 31st level, and an additional 11 divided between the fifth and sixth. ELCO also ensured hassle free integration to the building management system, by utilising the ELCO Commercial Gateway to allow communication via BACnet protocol.
The TRIGON® XL represents a significant step forward in heating technology. With extremely flexible configurations, clever design and a range of models available, the boiler is well suited for a variety of commercial applications.
The unique heat exchanger with HEX³ geometry delivers class leading NOx and CO emissions and offers extremely high efficiency. The boiler itself is a compact dimension and can be easily dismantled and reassembled onsite for ease of installation. Plus, extensive cascade arrangements of up to 8 boilers with a combined output of 4,560kW are possible.
Speaking about the installation, Bob Masiero, Senior Projects Manager at HEVENTA Building Services Engineering added: “The entire installation process was straightforward, especially when it came to fitting the boilers in the required cascade arrangement within each plant room. The units are fantastic from an accessibility point of view, which will be particularly beneficial when it comes to annual servicing and maintenance. I was impressed with the smooth process of assembling them in situ and would highly recommend using them on future projects.”
Proven Performance, Trusted Expertise
With decades of experience and a product range engineered for excellence, ELCO continues to lead the way in commercial heating innovation. Whether it's optimising energy efficiency, simplifying installation in complex settings, or ensuring compliance with environmental standards, ELCO delivers robust, future-ready solutions. For consultants, specifiers and contractors seeking a trusted partner in commercial heating, ELCO represents a blend of proven reliability and pioneering technology.
For more information on ELCO’s range of high-efficiency boilers and more, visit: www.elco.co.uk.