Sales had already increased 61 per cent year-on-year from 2015 to 2016, followed by a further seven per cent improvement on this in 2017, prior to the latest figures being announced.

The XL Series is part of ATAG Commercial’s highly efficient range of gas-fired boilers, boasting impressive performance, high quality and reliable engineering, plus flexible cascade arrangements. XL boilers are available in outputs of 60kW, 95kW and 120kW, with all models achieving best in class NOx emissions less than 30mg/kWh – offering maximum BREEAM points. 

Paul Martin, national sales manager at ATAG Commercial, said: “XL Series boilers are quick and simple to install, plus there are a wide number of sizes and potential configurations available. With such a wealth of options to choose from, units remain high in demand among installers and specifiers alike, as no matter how much space there is in a plant room, there will always be an XL boiler configuration suitable for the application in hand.”

With options for wall mounted in-line, free standing in-line and back-to-back arrangements, the ATAG XL boiler can be fitted in a wide range of modular installations, comprising two to eight boilers. Plus, XL boilers are equipped with connections for flue gas and air inlet (parallel tubes), allowing for both open and room sealed arrangements. 

Each XL Series commercial boiler also incorporates an extremely efficient and durable stainless steel heat exchanger. The specially designed hydraulic chambers and smooth tubes ensure water turbulence is optimised for maximum heat transfer, while maintaining the lowest possible pressure drop.

ATAG Commercial, which is part of the Ariston Thermo Group, is a manufacturer of gas fired condensing boilers suitable for a range of domestic and commercial applications. Other models in the range include the flexible Q Series of commercial units which, like the XL Series, has proved to be highly successful throughout the UK for many years, blending manufacturing expertise with unmatched reliability.