Viessmann Vitodens 050-W The ultimate review. A Which best buy combi boiler and system boiler.

Viessmann Vitodens 050-W
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Today we are looking at the Viessmann Vitodens 050-W but let’s face it, when it comes to boilers, most of us have no clue what we are looking for, or what company to trust when it comes to supply and fitting.

That’s why we here at Boiler Central have vetted several types of boilers, filters, and associated materials to come up with the utmost reliable and low maintenance systems that cater to a range of homes and family sizes. 

We know boilers inside and out, like BMW know cars and the mechanics involved in producing world beating vehicles.

We know what makes a reliable and efficient boiler and what it takes to install at a convenient time, and all by our vetted boiler fitting experts. 

That’s why our recommendations are important to any consumer looking to purchase and have a new boiler fitted at the most affordable price, and with industry leading warranties of up to 15 years!

We couldn’t offer this without having the product to back it up and the Viessmann Vitodens 050-W fits the bill perfectly.

Why choose the Viessmann Vitodens 050-W?

viessmann 050-w boiler



Perfect for homes 1,2, and up to 3 bedrooms, the Viessmann Vitodens 050 offers superior quality at a budget price. Boiler Central currently offers this amazing boiler for a low price of £1899 installed or as little as £24.55 a month@ 9.9% APR!



A low-cost gas condensing boiler with a compact design, the Vitodens 050 offers a super quiet operation that integrates into any home effortlessly without compromising on quality.

The Viessmann 050-W Is ideal for both new builds and any home renovations.

Stainless Steel Heat Exchangers: 

Viessmann 050-w Stainless Steel Exchanger

Like the aforementioned comparison to BMW, Viessmann, a fellow German brand, engineered their 050-W boiler to last.

Even though this is considered a budget boiler, the stainless steel heat exchanger is far more robust than other, higher priced brands. 

This might not mean anything to you as a consumer, however take our word for it when we say that the heat exchanger is a likely fault point in any broken boiler, making the reliability and chance of breakdown in our Viessmann boilers far less likely. 

This gives you peace of mind that your boiler , even at a budget, will remain in working order for years to come.

That’s why Viessmann is an award winning, and continuously upcoming boiler brand, quickly catching up to the likes of Worcester Bosch, et al.  


Features and Benefits of the Viessmann 050-W: 

Viessmann 050-w Internals
Viessmann 050-W Boiler Installation
  • Fantastic quality stainless steel Inox-Radial heat exchanger

  • 707mm height,400mm wide, and 350mm deep with a 37kg weight makes it quite compact and lightweight.
  • Up to 98% efficiency! Near Instantaneous hot water

  • Easy to read LCD user interface

  • Compatible with wireless thermostats

  • 15-year exclusive warranty only with Boiler Central!

  • A rated energy efficiency

  • Keep it green with low C02 Emissions 
Viessmann 050-W Specifications

1. Dummy cover for optional wireless accessories and time switches
2. LCD screen
3. User interface
4. ON/OFF switch
5. Pressure gauge

Is the Viessmann Vitodens 050-W really the best choice compared to the Worcester Bosch Greenstar 25-i?

Viessmann Boilers

Absolutely! To start, the Viessmann 050-W boiler has a water flow rate at 12 litres/min whereas the Worcester-Bosch Greenstar has a flow rate of 10 litres/min. 

Also, the heat exchanger on Viessman being stainless steel makes it a much better choice when compared to the Worcester-Bosch’s Aluminium exchanger and with 98% efficiency compared to the Worcester-Bosch’s 94%.

It really is a no-brainer when it comes to budget boilers for 1, 2, and 3 bedroom homes. 


Other benefits of the Viessmann 050-W range:

Guess what? It just seems to get better when it comes to the Vitodens 050-w.

The electronic boiler control unit for thermostatic/weather compensated mode is already included and integrated into the Vitodens 050-W. Oh, as well as a frost stat! 

Coupled with it already being particularly low noise when in full operation and a compact, eye catching design, the Vitodens 050-W is among the best combi boilers and of the smallest wall mounted boilers available on the market today. 

It’s even perfect for multi level buildings and flats, being able to have 5 boilers connected to a vertical flue system over several floors. 

It’s low installed height makes it easier for replacement of old boilers, with improved access to serviceable parts such as the plate heat exchanger and inherent ease of wiring with all Viessmann boilers make it easy for your annual boiler service to be performed.

Looking for boiler cover with annual boiler service included?

Why not see our amazing service plans from only £13.99/mo!

Affordable Boiler Cover
Affordable Boiler Cover by Boiler Central

Additional options available for the Vitodens 050-W:

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Affordable Boiler

Analogue time switch with day program and digital time switch with seven-day program.
The time switches can be plugged into the wall mounted boiler’s control unit.


Hardwired analogue room thermostats (24 V) with and without day program.
Analogue wireless room thermostat with day program for the optimum room temperature for your home.


The receiver can be plugged into the wall mounted boiler’s control unit.
Hardwired digital clock thermostat with large LCD screen and individual day and seven-day program.

Digital wireless clock thermostat with large LCD screen and individual day and seven- day program.

The receiver can be plugged into the wall mounted boiler’s control unit.
Also compatible with third party controls (24V)

Technical Specifications:

Rated heating output (50/30 °C) kW 6.5 – 24.0 8.5 – 33.0

Rated heating output (80/60 °C) kW 5.9 – 21.9 8.0 – 31.1

Rated heating output for DHW heating kW 5.9 – 29.3 8.0 – 35.0

Rated heat input kW 6.1 – 22.4 8.2 – 30.9 

Efficiency – At full load (to DIN) – 97.1%, 97.1%
At partial load (to DIN) – 108.4, 108.4
SEDBUK (2009) >89.1, >89.1

NOx class 5 5 NOx emissions <39mg/kWh <39mg/kWh 

Nominal water flow rate for DHW heating At ΔT 35 K to EN 13203 l/min 12.0 14.3 DHW

Convenience According to EN 13203 *** *** Expansion vessel Capacity litres 8 8 Permiss.

Operating pressure bar MPa 3 0.3 3 0.3 Weight kg 37 39

Dimensions – Length (depth) – Width – Height 350MM, 400MM 707MM 

Flue gas connection Ø mm 60 

Ventilation air connection Ø mm 100 

Viessmann Budget Boiler

Using the above information, you should be armed with the knowledge to make a considered purchase of your next boiler.

The next boiler up from the 050-W would be the Viessmann Vitodens 100-W combi boiler.

Should you need any additional information or help, please message us at boilercentral.com or on 0330 043 0114 or fill out a no obligation quote and even buy your new boiler online now.

All with convenient slots and installation at a date and time that suits you!

Plus you will get a market leading 15 year warranty on our Vitodens 050-W boiler only from Boiler Central.

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