Unica MAX has two combi models in the range: 35 and 40kW. Designed to accept a 20% hydrogen, the new Unica MAX will adapt to burn the methane-hydrogen blend at the time when the local network switches over. The boilers have active combustion control (ACC) so they can adapt to the air/gas mix according to the gas quality available. Unica MAX is hybrid enabled, to meet the current and future integration needs of various energy sources, including gas, electricity and renewables. The 40kW combi version provides an impressive domestic hot water flow rate of 16.4l/min at ΔT35°C temperature rise. The Unica MAX range features a large bore stainless steel heat exchanger which can increase the life of the appliance and result in less downtime due to maintenance. At the heart of Unica MAX is a colour liquid crystal display user interface. The full text menu-driven control enables both the installer and end user to quickly navigate through the boiler’s parameters and settings, including an optional embedded time clock programming the heating on and off times as desired.