Efficient and quiet 3-phase boiler for a wet central heating system. Ideal for light commercial properties, such as hotels and guest houses, and large properties with 3-phase electricity. 6-stage stainless steel heat exchanger. Features integral sealed system kit, volt-free control connections, easy-fit connectors and sensors, high current thermal cut-out, in-built fault-finding diagnostics, digital pressure gauge, vortex flow temperature sensor, ErP Smart pump and removable bottom tray. Suitable for central heating only or central heating and hot water when used with 'S' plan configuration, in conjunction with twin channel heatpack (sold separately). Max. Central Heating Output: 39kW Stainless Steel Heat Exchanger Compatible with All Types of Indirect Cylinders Compatible with Solar PV Panels 5 Year Manufacturers Guarantee (Registration Required, T&Cs Apply) 132,045BTU Backlit LCD Display Suitable for Underfloor Heating No Mandatory Maintenance Required Max. Central Heating Output...