Viessmann’s Vitotronic 300 GW6B boiler control system features a smart operating interface that is easy to use with text-driven menus. The Commissioning Wizard ensures fast and simple boiler startup. Boiler configuration options include integrated cascade/boiler sequencing function for standalone or up to eight lead-lag boilers. Single Vitogate 300 gateway communicates with up to eight boilers and allows for simple BAS integration. The Vitotrol App for Apple and Android devices offers worldwide access to a heating system.