Vitodens 100-W sealed system boiler with plain matt surface and modern, functional design that blends harmoniously into any living environment. Intelligent energy centre which meets the highest demands for a comfortable heat supply. Simple, intuitive operation, LambdaPro and integrated WiFi interface. Max. Central Heating Output: 25kW Stainless Steel Heat Exchanger Top Flue Outlet Compatible with Viessmann or Third Party Cylinders Compatible with Solar Panels 5 Year Manufacturer's Guarantee (T&Cs Apply) 85,303BTU Backlit Digital Display Intuitive Operation Integrated WiFi Interface Max. Central Heating Output: 25kW Stainless Steel Heat Exchanger Top Flue Outlet Compatible with Viessmann or Third Party Cylinders Compatible with Solar Panels 5 Year Manufacturer's Guarantee (T&Cs Apply) 85,303BTU Backlit Digital Display Intuitive Operation Integrated WiFi Interface