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 4.8 stars

1,567 reviews

 4.8 stars

1,567 reviews

Viessmann Vitodens 050 W B0KA 19 kW Combi Gas Boiler

Typical Price (inc VAT)
Typical installation Cost (inc VAT)*
£500 - £1000
Sundries (Filter, Flue, etc)

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Make Viessmann
Model Vitodens 050 W B0KA 19 kW Combi Gas Boiler
Is Condensing Condensing
Efficiency Rating 92%
Band Rating A Rating
LPG Compatible Yes
Standard Warranty Up to 7 Years
Central Heating Max. Output 19kW
Mounting Wall Mounted
Flow Rate 10.2 l/min
Typical Price (inc VAT) £0
Typical installation Cost (inc VAT)* £500 - £1000
ERP Rating A Heat, A Water
Hot Water Max. Output 25.4 kW

* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.

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Viessmann Vitodens 050-W B0KA combi gas boiler at a glance

  • - Suitable for: smaller properties with about 9 -12 radiators
  • - Fuel: Gas
  • - Type: Combi / Condensing
  • - Central Heating (CH) output: 19kW
  • - Domestic Hot Water (DHW) output: 25.4kW
  • - Efficiency: 92% efficiency / ErP A-rating for heating and hot water
  • - Typical total cost: £1,716 - £2,216

Is a Vitodens 050-W combi gas boiler suitable for my home?

Since the Vitodens 050-W is a combi boiler this means it can supply instant hot water on demand and doesn’t require any external tanks or cylinders. Therefore, this boiler is perfect for smaller properties that want to make the most of their space.

What is the output range on a Viessmann Vitodens 050-W B0KA?

The Vitodens 050-W is a combi boiler with an output of 19kW for central heating and 25.4kW for hot water, which makes it ideal for homes with about 9-12 radiators and 1 bathroom.

Viessmann also provides this combi boiler in a larger size. If you have a few more radiators or an extra bathroom in your home, then the more powerful option will probably be a better fit for you. This option has a central heating output of 25kW and a hot water output of 29.6kW.

What is the size of the Vitodens 050-W B0KA combi gas boiler?

The Vitodens 050-W B0KA has a width of 400mm, a height of 700mm, and a depth of 300mm. The compact size of the Vitodens 050-W B0KA means that it can be installed within a standard kitchen cupboard, allowing you to keep it out of sight and muffle any noise it creates (although it only has a noise level of 46DB so this shouldn’t be a concern!).

Furthermore, you’ll be able to save time and money on the installation. This is due to the fact this boiler is compact, only weighs 35kg, and doesn’t require any extra tanks or cylinders.

Viessmann Vitodens 050-W combi gas boiler price

The Viessmann Vitodens 050-W typically costs £916, including VAT. Depending on the complexity of your installation and sundries (flue, filter, etc.), the total cost for a Vitodens 050-W could be from about £1,716 to £2,216.

The complexity of the installation will vary depending on factors such as if you are replacing another combi boiler, or if you are changing from a system or regular boiler.

Get the best deals for this combi gas boiler

If you want to make sure you’re getting the best value when choosing a boiler, then it’s a good idea to compare multiple quotes for the Viessmann Vitodens 050-W from Gas Safe registered engineers. As mentioned above, the installation costs may vary a lot depending on your existing heating system, so seeing what different local heating engineers offer will ensure that you can get the best possible price.

If you’re ready to find a reliable heating engineer as well as the best deals, Boiler Guide can help you compare no-obligation quotes free of charge from installers in your area. Simply use our quick and easy form:
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Warranty on the Viessmann 050-W combi gas boiler

For this boiler, Viessmann offers an extended warranty of 10 years, meaning you can feel assured for a long time after it’s been installed. This warranty provides cover for both parts and labour whenever there has been a material or manufacturing defect.

With that being said, it’s important to check the eligibility criteria for any type of warranty so you can be sure when you’re covered, and to always service your boiler annually with a Gas Safe registered engineer. The standard warranty of this model is for a 3-year period, however, if you have it installed by a Viessmann Trained Installer then this will rise to 7 years.

To guarantee the extended 10-year warranty, as long as the installation is carried out by a Viessmann Trained Installer, you'll be given the option to pay a premium to secure the 10-year warranty option. The Inox-Radial stainless steel heat exchanger always comes with a 10-year guarantee against leaks from corrosion, no matter whether you choose the 3, 7, or 10 year option.

Reviews of the Viessmann Vitodens 050-W combi gas boiler

Viessmann is a well-established and reliable boiler manufacturer. All of the components for their Vitodens 050-W are manufactured in their production facility in Allendorf, Germany, so you can feel assured that you’ll be receiving the highest quality.

It is a highly-rated company by its customers, receiving thousands of excellent reviews on TrustPilot. Overall, it has an average rating of 4.4 stars out of 5, which is a strong indication that people are happy with the quality of their products and service, so you can feel confident with putting your trust in them and their boilers. Furthermore, Viessmann continually features in Which? Best Buy awards, meaning that over the years, they consistently come out with quality products. So, if you’re looking for a reliable and top-rated boiler manufacturer, then Viessmann is definitely a strong contender.


What kW is a Vitodens 050-W?
The Vitodens 050-W comes in two sizes. The smaller size has an output of 25.4kW for domestic hot water (DHW) and 19kW for central heating. This size is great for homes with about 9-12 radiators and 1 bathroom. The larger size has a DHW output of 29.6kW and a central heating output of 25kW, making it better for homes with a higher hot water demand.

What is the life of a Viessmann boiler?
Typically, a boiler’s lifetime is from about 15-20 years. However, this will greatly depend on how well the boiler is maintained. If you have your boiler installed by a Viessmann Trained Installer and make sure to have it serviced annually by a Gas Safe registered engineer, then you can guarantee at least 10 good years with Viessmann’s warranty.

Is Viessmann a good company?
Viessmann is one of the leading international boiler manufacturers. They are reviewed highly by their customers and their boilers continually come out on top for the Which? Best Buy awards.

Is Vaillant better than Viessmann?
Vaillant and Viessmann are two boiler manufacturers both reviewed highly and therefore definitely worth considering when choosing a new boiler for your home. They both provide high-quality and efficient boilers that will keep your running costs as low as possible.

However, Viessmann’s Inox-Radial stainless steel heat exchanger gives it the edge. The stainless steel heat exchanger is highly resistant to corrosion at a wide range of pH levels, meaning that it doesn’t require as much maintenance and will last longer compared to other manufacturers’ aluminium heat exchangers.

How much does a Viessmann boiler cost?
Viessmann has a wide range of boilers suitable for a variety of budgets. They may not be the cheapest on the market, but they are still reasonably priced and you can guarantee that their products are top quality. For example, the typical price of their Vitodens 050-W is only £916.

However, when buying any type of boiler it is also important to take into account the installation cost and price of any sundries, as this will vary depending on a multitude of factors. Therefore, it’s important to get expert advice from a trusted heating engineer to ensure you’re getting the best boiler at the right price.

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Excellent 4.8 out of 5

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