Introducing our new Modumax mk4 Floor Standing Boiler Range

Building on the success of our bestselling range, our latest generation of Modumax mk4 boilers feature a new modern, intuitive design with flexible connections and pipework kits, making it an efficient and flexible solution for a wide range of commercial buildings.

Featuring a new asymmetrical configuration and a clear digital touchscreen for easy navigation, Modumax mk4 boilers offer simple operation, while improved access to key components speeds up servicing and on-site installation. Models also include a Modbus communications module for seamless integration with building management systems, with a VFC remote signal kit supplied as standard to support efficient setup and optimisation. Suitable for plant rooms with limited space or restricted access, Modumax mk4 boilers feature a compact and lightweight design to help simplify installation. Designed to fit through a standard doorway, modules can be split for easier handling in basement or rooftop plantrooms, while a reduced flue height supports installation in height restricted areas. To save space, modules can also be stacked two or three high in up to 15 combinations, delivering up to 762 kW in less than one metre square of floor space. For added convenience, the range is available with six pipework kits, complete with pumps, and can be paired with a selection of Hamworthy Heating low loss headers to help simplify primary circuit design. Boilers are also dual approved for use with both natural gas and LPG. Incorporating stainless steel heat exchanger technology and backed by a 10-year warranty, Modumax mk4 floor standing boilers are available in five models with outputs from 97 to 254 kW (50/30 °C). Delivering a 5:1 turndown ratio per module, low Class 6 NOx emissions across all models and up to 95% gross seasonal efficiency, the range combines durability with outstanding efficiency. Building on our long-standing heritage of modular boilers designed, tested and manufactured in the UK, Modumax mk4 boilers include all the features our customers know and trust, but are now even easier to install, commission and service.