The Viessmann Vitodens 050-W B0KA 25kW Gas Combi Boiler is a compact, wall-mounted condensing combination boiler designed to provide efficient central heating and domestic hot water on demand. With a 25kW output, 10.2 L/min hot water flow rate and ErP A rating, it delivers efficient performance for modern residential heating systems.
Its ultra-compact 400mm wide × 700mm high × 300mm deep design makes the Vitodens 050-W suitable for space-conscious installations and can be fitted inside a kitchen cupboard. At 35kg, it also provides a practical replacement option where installation space is restricted.
The boiler incorporates built-in WiFi, allowing connection to the ViCare App for remote heating control and monitoring. It is also compatible with the ViCare wireless thermostat, available separately. The LCD touchscreen control provides straightforward access to boiler settings.
The Vitodens 050-W uses a stainless steel Inox-Radial heat exchanger and MatriX-Plus burner with Lambda Pro combustion control. Its modulation range extends down to 1:8, allowing the boiler to adjust its output to match heating demand more closely. The boiler is approved for both natural gas and LPG, with no additional conversion kit required for LPG.
Key Features
25kW gas combi boiler
ErP A-rated efficiency
10.2 L/min domestic hot water flow rate
Built-in WiFi
ViCare App compatible
ViCare wireless thermostat compatible
LCD touchscreen control
Stainless steel Inox-Radial heat exchanger
MatriX-Plus burner
Lambda Pro combustion control
Modulation range up to 1:8
Natural gas and LPG compatible
No additional LPG conversion kit required
Ultra-compact design
Suitable for kitchen cupboard installation
Wall-mounted installation
Variable-speed high-efficiency circulation pump
8-litre expansion vessel
Quiet operation
Specifications
Brand: Viessmann
Model: Vitodens 050-W B0KA
Boiler Type: Gas Combi Boiler
Heat Output: 25kW
DHW Flow Rate: 10.2 L/min
ErP Rating: A
Fuel: Natural Gas / LPG
Mounting: Wall
Installation Location: Internal
Colour: White
Width: 400mm
Height: 700mm
Depth: 300mm
Weight: 35kg
MPN: 7098601
Flue: Not included
Controller: None included
WiFi: Built-in
What’s Included
Viessmann Vitodens 050-W B0KA 25kW Gas Combi Boiler – 7098601
Integral control unit with WiFi interface
Integral safety valves
Variable-speed high-efficiency circulation pump
3-way valve
8-litre expansion vessel
Valve fittings
Boiler flue connection