We are often asked by customers just how good Viessmann boilers are, our answer to this is that they are excellent.

Viessmann offers the most technologically advanced and efficient boilers currently available on the UK market. Our opinion of Viessmann boilers is based on the technology employed across the range, the efficiency of its boilers, the flow rates offered by Viessmann combi boilers, and the company’s usage of components that are all manufactured in-house at its Allendorf production facility.

Key to the excellent quality of Viessmann boilers is the usage of its patented Inox-Radial stainless steel heat exchanger. Constructed from the highest grade of stainless steel, Viessmann’s heat exchangers are highly resistant to corrosion, don’t require special fluids as aluminium heat exchangers do, and are designed to retain the boiler’s efficiency for the lifetime of the appliance.

Our opinion of Viessmann is backed up by Which?, with the consumer organisation awarding the Vitodens domestic boiler range Which? Best Buy status every year since 2017. To determine Best Buy status, Which? surveys over 8,458 consumers about the boiler brand they own and whether they would recommend it to a friend. Which? also surveys over 170 registered Trusted Traders heating engineers on their thoughts about the boiler brands they work with and their thoughts about installation, services, fault fixing, and the availability of parts and spares.

Upon being awarded Best Buy status for the first time in 2017, Which? said the following about Viessmann, “Viessmann has been on the cusp of being a Best Buy boiler brand for the past few years, and 2017 sees it deservedly crack it. Its reliability score is the best of any brand” and “Two-thirds of owners would definitely recommend their Viessmann boiler to a friend. Engineers are positive about Viessmann too.”

Viessmann has now been awarded Which? Best Buy status multiple times and was described as a “very smart choice” by the consumer organisation in its latest survey.

Both our opinion and the opinion of Which? is reflected by Viessmann UK being rated excellent by Trustpilot, with a TrustScore of 4.6 on the review platform.

Viessmann has 22 production facilities in 12 countries across the world. However, all of the Viessmann boilers available in the UK are manufactured at Viessmann’s global head offices and production facilities in Allendorf (Eder) in Hesse, Germany.

Yes, Viessmann’s UK office has been based in Telford, Shropshire since 1989. From this office, Viessmann coordinate the training of approximately 2,500 installers, contractors, specifiers and architects on its products each year across the UK.

Yes, all Viessmann spare parts are stocked at Plumbase and several other plumbing merchant locations around the UK.

Viessmann was established in 1917 in Hof an der Saale, Germany by Johann Viessmann. A family-owned company for four generations, Viessmann is today led by Martin Viessmann, Maximillian Viessmann and Joachim Janssen.

With 23 production facilities, representative offices in 74 countries, and 120 sales offices across the world, Viessmann employs over 12,300 people globally.

No, purchasing a Viessmann boiler is exactly the same as it was prior to Brexit.

The Viessmann boiler that is right for you is dependent on several factors. These include the following:

• The size of your property
• The hot water demands of your household
• Your current boiler system
• Whether your home is connected to the mains gas network 

To illustrate the most suitable boiler for your needs, we have detailed a number of typical scenarios and the most suitable boiler for these below:

The Viessmann Vitodens 050-W is Viessmann’s entry-level boiler range, whilst the Viessmann Vitodens 100-W is a more advanced boiler range from Viessmann. A comparison of the two boiler range can be found below:

The Viessmann Vitodens 100-W and the Viessmann Vitodens 200-W are two boiler ranges available from Viessmann. A comparison of the two boiler ranges can be found below: