"Less is more" – all new heating systems from Viessmann are designed according to this maxim. The high integration capability achieved in the living area is the aim here. The generosity and clarity of the single sheet steel casing in conjunction with the control unit forms part of the appliance design create an architecturally pleasant formal appearance that suggests reliability and quality. Access for servicing and maintenance requires only two steps: the removal of the single part housing and of the front of the control unit from the wiring chamber.