Updated March 2021

The Viessmann Vitodens 050-W combi boiler is the entry-level option in the Viessmann boiler range. As one of the most popular boilers we install, we have taken a look at this boiler in detail and highlighted why this entry-level boiler option is anything but basic.

Price (Installed): From £2100 (inc. VAT)

Viessmann-Vitodens-050-W-29kW

Viessmann Vitodens 050-W Video Review

Discover our thoughts about the Viessmann Vitodens 050-W as we follow the Boilerhut engineers during the installation of one of these boilers:

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Viessmann Vitodens 050-W Technical  Specification

ManufacturerViessmann
ModelVitodens 050-W 
CondensingYes
Efficiency Rating97%
Energy Efficiency ClassA Rated
LPG CompatibleYes
WarrantyUp to 10-year comprehensive warranty*
Central Heating Max. Output24kW
MountingWall Mounted
Weight36kg
Dimensions707mm (Height) x 400mm (Width) x 350mm (Depth)

*when installed by a Viessmann trained installer

The Vitodens 050-W is available in the following sizes: 29kW and 35kW

kW SizeFlow Rate
29kW12.3 l/min
35kW14.5 l/min

Viessmann Vitodens-050-W Cross-Section

Viessmann Vitodens 050-W Key Features

  • Ultra-compact dimensions – just 707mm in height
  • Ideal for installation in a cupboard
  • High-quality stainless steel Inox-Radial heat exchanger
  • Stainless Steel Cylinder Burner
  • Integral instantaneous water heater
  • Low CO2 emissions for reduced environmental impact
  • Digital user interface with LCD display for easy operation
  • Class A-rated for energy efficiency
  • Can be integrated with smart thermostats such as Nest and Tado and controlled via a smartphone

About the Viessmann Vitodens 050-W

  • Ideal for properties with up to 10 radiators with one bathroom (29kW) and properties with up to 20 radiators with one or two bathrooms (35kW)
  • Designed for installation in a number of locations such as a utility room, kitchen or an airing cupboard
  • Compact dimensions ensure space-saving and allow for the boiler to be installed in living areas 
  • Made and assembled in Germany

Our thoughts on the Viessmann Vitodens 050-W

The Viessmann Vitodens 050-W is an affordable gas boiler offering quiet operation and compact dimensions. For these reasons, we regularly recommend this boiler to customers looking to install it in a living area.

Awarded Which? Best Buy status every year since 2018

Whilst it comes in at a more competitive price than other Viessmann boilers, the Viessmann Vitodens 050-W is still equipped with Viessmann’s innovative technology and just the same as the other boilers in the Vitodens range, it has been awarded Which? Best Buy status every year since 2018.

Available in two outputs to suit various properties

The Vitodens 050-W comes in two different outputs – 29kW and 35kW. We recommend the 29kW rated Vitodens 050-W for properties with up to 10 radiators and one bathroom, whilst we recommend the 35kW rated Vitodens 050-W for properties with up to 20 radiators with one or two bathrooms.

According to the SEDBUK rating, the Vitodens 050-W achieves 89% efficiency, which makes this an A-rated boiler. 

Equipped with Viessmann’s patented Inox-Radial stainless steel heat exchanger

Key to the Vitodens 050-W’s efficiency and crucial to retaining it is Viessmann’s patented Inox-Radial stainless steel heat exchanger. This is a component utilised across all of Viessmann’s boilers and is largely what makes the 050-W stand out from the competition. The reason for this is that many other boilers at this price point utilise an aluminium heat exchanger. 

Whilst aluminium heat exchangers allow for excellent performance initially and provide high heat transfer, over time they become more prone to corrosion from chemicals added to the system. Due to this, they cannot be used with softened water. With its stainless steel heat exchanger, the 050-W on the other hand features high corrosion resistance at a wide range of pH levels, does not require extra maintenance fluids and will simply last longer. To ensure this further, the heat exchanger in the 050-W has a 10-year warranty from Viessmann.

Easy operation

Operating the 050-W is made easy thanks to the simple touch buttons and LCD display to the front of the unit. 

Whilst if you’re looking to be able to control the boiler remotely and increase its efficiency, it is compatible with Tado and Nest smart thermostats. This means that your heating system will be able to programme itself, learn from your behaviour including when you leave the house and when you come back, and save energy automatically whilst you’re away. 

To control the boiler remotely, no matter whether you are using Tado or Nest with it, you will be able to use the associated app to control it from a smartphone or tablet. Whilst if you have an Amazon Alexa enabled device, you will be able to control the boiler utilising voice commands whilst you are in the house.

Weather Compensation

To increase its efficiency, the 050-W is equipped with weather compensation. Weather compensation works by a small temperature sensor being installed on the outside of the property, on a north-facing wall.  This is then wired to the internal controls of the boiler.  The weather compensation sensor will send information about the outside temperature to the boiler controller constantly, so that when the temperature changes outside, the boiler responds and starts to increase or decrease the radiator temperature inside your house to compensate.

Built-in shock arrestor 

Water hammer can be an issue with boilers at a similar price point to this one, however, this is remedied with the Vitodens 050-W’s built-in shock arrestor. This stops the loud rattling of water pipes every time a tap is opened in the property. This goes beyond just putting an end to the annoying noise though. By eliminating water hammer, major problems such as pipe collapse are also avoided.

Boiler Reset

As well as all these added benefits, the Viessmann Vitodens 050-W boiler is very easy to reset as well. Watch the short video below to find out how this can be done:

All components manufactured in-house

All components used within Viessmann Vitodens 050-W boilers sold in the UK are manufactured in the same Viessmann production facility in Allendorf, Germany. This is a major positive for this boiler as Viessmann manufactures each of these components to effectively work together unlike competitors who buy in certain components in their boilers from third-party suppliers.

Wide availability of parts 

When Viessmann first entered the UK market, parts were hard to come by in the UK. This was an area of weakness by Viessmann’s own admission. However, this has changed in recent years and parts are now widely available in all Plumbase stores across the UK, as well as many other plumbing merchants online and in-store.

Verdict and Final Thoughts


Overall Rating: 9.5/10

Cost-Effectiveness: 10/10

Energy Efficiency: 9/10


Unless the price difference is huge, it doesn’t make any sense to purchase a boiler with an aluminium heat exchanger. Especially when the Vitodens 050-W is available at a similar price to other boilers with an aluminium heat exchanger.

At this price point, the Vitodens 050-W is our number one recommendation.

For a cost from £2100, you will be purchasing a boiler complete with Viessmann innovation, futureproof technology, Gas Safe installation, a 10-year warranty and efficiency-enhancing features such as weather compensation.

Viessmann Vitodens 050-W customer testimonial

To find out more about the Viessmann Vitodens 050-W, discover the thoughts of a recent customer in this video testimonial:

How much are the monthly repayments for a Viessmann Vitodens 050-W?

Using our boiler finance calculator, you will be able to see the typical monthly repayments for a Viessmann Vitodens 050-W should you choose to take out a finance plan for this boiler.

BOILER FINANCE CALCULATOR







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