Vitodens 050-W

Wall mounted gas condensing boiler

Efficient and durable. High heating and DHW convenience: the Vitodens 050-W wall mounted gas condensing boiler.

Rated heating output: 3.2 to 25 kW
Attractive price/performance ratio
H₂ ready 20 %
Ideal for living space

Protect the climate and save money: learn more about hydrogen as an energy source

Heating with hydrogen
Very attractive price/performance ratio

With reliable Viessmann product quality

Durable and efficient

Thanks to Inox-Radial heat exchanger

MatriX-Plus burner

With Lambda Pro Plus combustion controller for consistently high efficiency and clean combustion

Easy operation

Straightforward operation via control unit with LED display and touch buttons

Web-enabled via integral WiFi interface

For service and commissioning via Viessmann apps (control unit available with or without WiFi module, depending on the version)

Ideal for living space

Ideal for installation in the living space due to low operating noise and compact dimensions

Low installed height

Low installed height for an easier replacement of old boilers

High DHW convenience

Thanks to standby function (Vitodens 050-W type B0KA combi boiler)

Vitodens 050-W wall mounted gas condensing boiler

Vitodens 050-W:  high heating and DHW convenience combined with very attractive price/performance ratio

As a large-scale manufacturer with many years of experience in the production of wall mounted boilers, we know what matters. Viessmann product quality is something you can rely on, and the attractively priced Vitodens 050-W is no exception. Viessmann wall mounted boilers are renowned not just for their innovative technology and performance, but for their reliability and durability too. Thanks to advanced assemblies, this wall mounted gas condensing boiler is extremely compact and can be installed even in small recesses. No side service clearances are required, since all the connections are easily accessible from the front.

Equipped for the future

The technology that enables the use of natural gas/hydrogen blends for heating buildings is already available and on the market in many thousands of cases. In principle, the gas condensing boilers of the latest Vitodens 300 generation can already be operated with 20 percent hydrogen today. Home and apartment owners who opt for these modern wall mounted and compact appliances are therefore ideally equipped for the future.  Learn more about  climate-neutral heating with hydrogen.

Special features of the Vitodens  050-W

The Vitodens  050-W is ideal for modernising apartments or detached houses. It is offered with two output ratings (3.2 to 19 and 3.2 to 25  kW) as a system and combi boiler (with integral instantaneous water heater).

The MatriX-Plus burner:  the heart of your heating system

Among the benefits of the MatriX-Plus burner are its efficient operation, quiet running and low emissions.  The special stainless steel MatriX surface is resistant to high temperatures, which ensures reliable performance and a long service life.  

Another technical innovation is the Lambda Pro fully automatic combustion controller. It automatically adapts to all gas types and ensures consistently clean and efficient combustion.

MatriX-Plus burner

Stainless steel Inox-Radial:  efficient and durable

Stainless steel makes all the difference. The corrosion-resistant stainless steel Inox-Radial heat exchanger is at the heart of the Vitodens 050-W. It converts the consumed energy into heat very efficiently. In addition, the particularly durable, high grade stainless steel ensures reliability.

Inox-Radial heat exchanger made from stainless steel

Product features

  • Gas condensing system boiler and combi boiler
  • Rated heating output from 3.2 to 25  kW
  • Standard seasonal efficiency [to DIN]: up to 98  % (Hs) [gross cv]  
  • Modulation range down to 1:8
  • Power saving, high efficiency circulation pump
  • Energy efficiency class A

Benefit of the Vitodens 050-W combi boiler (type B0KA):
High level of DHW convenience as a result of the standby function

Easy operation with optional remote control

The heating water and DHW temperatures can be set quickly with the user friendly buttons. Operating states and temperatures are shown on the digital display screen.

Digital display of the Vitodens 050-W

Energy savings, convenience and security with ViCare

Vitodens 050-W wall mounted gas condensing boilers with the new electronic platform have an integral WiFi interface, depending on the version. This connects the heating system directly to the internet if required. Operating the heating system is very simple and intuitive with the ViCare app. It sets the course for digital services and is in direct contact with the local heating contractor. The ViCare app provides information on the current operating status of the energy system, while time programs for central heating and DHW heating contribute to energy cost savings. It is compatible with almost all iOS and Android mobile devices.

Depending on the version, the control unit is available with or without an integral WiFi interface.

ViCare thermostat:  convenient individual room control

By hooking up the high quality ViCare thermostat developed for use with Viessmann heating systems, the room temperature can be conveniently controlled via the app.  In addition, the boiler water temperature is automatically matched to the heat demand, which saves energy and extends service life.

ViCare thermostats for convenient individual room control

Product details

Output in kW

3.2 to 25  kW

Standard seasonal efficiency [to DIN]

98  % (Hs) [gross cv]

Energy efficiency class



Natural gas, 20  % hydrogen mixture

Application area

Gas heating in detached houses, two-family houses and apartments | New build and modernisation projects


LED display with user friendly touch buttons, remote control via ViCare app possible. Depending on the version, the control unit is available with or without an integral WiFi interface.

DHW heating

An additional DHW cylinder is required for the gas condensing system boiler. The combi boiler has an integral instantaneous water heater

Additional features

MatriX-Plus burner, Lambda Pro fully automatic combustion controller

Product cross-section