Worcester Bosch vs Viessmann boilers: Which is the best brand?

James Elston
Written by James Elston
Updated on 4th December 2023
Posted on 30th November 2023
Topic: Boiler Guides
Worcester Bosch vs Viessmann boilers? Which is the best brand

Worcester Bosch vs Viessmann boilers: Which is best? Take a look at these replacement boiler brands head to head

So, you’re in the market for a new boiler and can’t decide between Worcester Bosch or Viessmann?

viessmann v worcester bosch

Not to worry, it’s an understandable dilemma – choosing between two of the most popular brands in the industry, therefore in this informative guide, we’ll provide you with all the information you need to choose the best replacement boiler for your home and central heating needs. 

Use this online calculator to get a fixed price in 20 seconds – click here

Video: Worcester Bosch 8000 Combi vs Viessmann Vitodens 100W Combi

The Worcester 8000 combi boiler and the Viessmann Vitodens 100-w are two premium combi boilers that are in direct competition in terms of price and performance. Find out which is better here:

Worcester Bosch vs Viessmann: What is the difference?

The main difference between Worcester Bosch and Viessmann is that Viessmann boilers are better value for money as the Viessmann Vitodens 050-W combi boiler is over £100 cheaper to buy and install with the same performance, better reliability, and the same 10-year warranty length. It is also more compact so can fit better in kitchen cupboards and tight spaces if required.

Check out our best compact boilers to see where the Viessmann Vitodens 050-w combi ranks!

Worcester Bosch or Viessmann: Let’s compare two of the best manufacturers

worcester bosch logo

Everyone has heard of Worcester Bosch in the UK, and mainly the Worcester Bosch Greenstar rage, whereas, in Europe, everyone has heard of Viessmann.

These are two of the giants of domestic heating in the UK and both offer relentless reliability and great performance in all of their boilers which means comparing Worcester and Viessmann is like comparing an Audi and a BMW, both are great, it may just go on personal preference.

Below, we provide a detailed comparison between Worcester Bosch and Viessmann boilers.

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?

Why choose Worcester Bosch boilers? 

worcester bosch boiler range

Worcester Bosch is one of the leading boiler brands in the UK. Established by Cecil Duckworth in 1962, the Worcester-based brand is recognised for its state-of-the-art, energy-efficient gas boilers. 

Formerly known as Worcester Engineering Co Ltd, Worcester Bosch manufactures boiler systems of all types, including combi, heat-only, and system boilers.

They also manufacture oil boilers, heat pumps, hot water cylinders, and most recently hydrogen boilers (still in the prototype stage) meaning Worcester Bosch is dedicated to meeting and exceeding ever-changing consumer needs, they continue to distribute products that revolutionise everyday home heating. 

Why choose Viessmann boilers? 

viessmann vitodens 050-w

The Viessmann Group has been active since 1917 when the brand was founded by Johann Viessmann in Allendorf, Germany and it is now an esteemed boiler brand within the industry. The company currently employs 12,750 members of staff worldwide.

Viessmann is a family-run business that prides itself on its ability to provide customers with state-of-the-art energy-efficient heating systems – this includes combi, heat-only, and system boilers. 

Viessmann UK

They introduced their UK headquarters in 1989, with offices based In Telford where they house their extensive product range which includes a selection of heating, cooling, air conditioning, and power solutions.

This range includes gas boilers, ground source heat pumps, air-source heat pumps, hot water cylinders as well as steam, oil, and biomass boilers, and as much as Viessmann may not be as well-known as Worcester Bosch, but it is a growing company with a great product range under its belt.

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?

Worcester Bosch Boilers Review

Worcester Bosch is renowned for its diverse range of high-quality, energy-efficient boilers. All of the boilers manufactured by Worcester Bosch are A-rated for efficiency and designed to provide a superb quality of heating and hot water with minimal energy usage.

All of the brand’s boiler systems are built with an aluminium heat exchanger. The Worcester Bosch Greenstar range of boilers is their most popular series of heating systems, including everything from combi boilers to heat-only and system boilers in a range of kW outputs. 

Worcester Bosch boiler range

·      Worcester Bosch Greenstar 8000 Style (combi and system boilers)

worcester 8000 white and black

·      Worcester Bosch Greenstar 8000 Life (formerly the Greenstar CDI Classic range- combi, regular and system boilers)

·      Worcester Bosch Greenstar 4000 (formerly the Greenstar I range – combi and system boilers)

·      Worcester Bosch Greenstar 2000 (combi boilers)

·      Worcester Bosch Greenstar Ri (regular boilers)

·      Worcester Bosch Greenstar CDi Compact and Highflow (combi boilers)

As you can see, Worcester Bosch has a diverse catalogue of boilers on offer. In recent years, they have significantly developed their range, replacing already popular systems with more innovative and energy-efficient alternatives.

They update their catalogue by considering user demands, energy efficiency, and installer feedback. This way, they can manufacture quality products that are high performance, easy to install, simple to use, and kind to the environment. 

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?

Viessmann Boilers Review

Like Worcester Bosch, Viessmann also has an extensive range of boiler systems available. From energy-efficient A-rated combi boilers to high-performance regular and system boilers, Viessmann aims to suit the needs of every household. 

Viessmann markets their boiler systems as “The UK’s most reliable boilers” and we absolutely love the Viessmann Vitodens 050-w combi boiler which is one of the best combi boilers right now in the UK

This highlights their goal to provide properties of all sizes with a heating system that they can count on. Built with robust German engineering and featuring a stainless steel heat exchanger, Viessmann boilers are designed to be strong, reliable and powerful – what more could you ask for from your boiler?

viessmann vitodens 100-w

Viessmann boiler range

·      Viessmann Vitodens 050-W (combi boilers)

·      Viessmann Vitodens 100-W (combi, heat-only, and system boilers)

·      Viessmann Vitodens 111-W (combi boilers)

·      Viessmann Vitodens 200-w (combi and system boilers)

·      Viessmann Vitodens 222-F (combi boilers)

Although Viessmann’s boiler range may not be as large as that of Worcester Bosch, they still offer boilers of all types in a range of different sizes to suit a variety of different properties. 

Benefits of Worcester Bosch boilers- Ratings and awards

Worcester Bosch has won a plethora of awards over the years and the brand is highly rated by consumers and installers in the industry.

The manufacturer has achieved Which? Best Buy status for eleven consecutive years, receiving high ratings for their Greenstar boilers’ performance, energy efficiency, and build quality, among other factors.

Best domestic boiler manufacturer award

Worcester Bosch was also awarded “Best Domestic Boiler Manufacturer” at Build Magazine’s 2020 Home and Garden Awards. The brand was selected by virtue of its innovation, business performance, longevity, online reputation, and customer feedback.

The Worcester-based brand was also awarded the “Best Heating Innovation” award at the 2021 Green Homes Awards for its hydrogen-ready boiler prototype which was designed to offer a new form of heating that is less reliant on carbon-heavy fossil fuels to help the UK achieve net-zero carbon targets. 

Additionally, the brand has a Royal warrant to supply boilers to Her Majesty The Queen’s Sandringham Estate.

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?

Benefits of Viessmann boilers – Ratings and awards

Viessmann has also been awarded a number of accolades for its products and services. Although they may not have received awards from well-known brands such as ‘Which?’, their rewards nevertheless show that they are manufacturing products well-worth the recognition. 

Examples of Viessmann’s rewards include 2019 IF Design Award for their product range which included the Vitodens 300 system boiler.

They also won the Design Plus Award for this system boiler range. In 2015, the brand also received the German Design Award in the category of Excellent Product Design – Building and Energy for their Vitoligno 300-C boiler. Viessmann continues to strive towards creating more reward-worthy heating products.

How much are Worcester Bosch boilers?

Worcester Bosch is a premium brand, so consumers can expect to pay slightly more than the average budget boiler brand price. The cost of a Worcester Bosch new boiler upgrade will depend on the model selected, as well as the size and boiler type. Installation costs should also be considered as this will add to the overall cost of the boiler replacement. 

Are Worcester Bosch cheaper than Viessmann

how much is a viessmann or worcester boiler?

On average, a Worcester Bosch Combi boiler can cost up to around £2,500 to install. Regular and system boilers can cost up to approximately £3000.

The best way to ensure that you get the best price for your Worcester Bosch boiler installation is to get a quote for a new boiler.

This way, you can find out exactly which Worcester Bosch boiler is best suited to your needs and get an idea of how much it could cost to install. Boiler finance options may also be available to help you spread the cost of your new Worcester Bosch boiler.

How much are Viessmann boilers?

In some cases, a Viessmann boiler can be a slightly more affordable option in comparison to Worcester Bosch boiler systems.

However, as with Worcester Bosch, the price of your Viessmann boiler will be reliant on the type, model, and size of the system required for your home.

On average, Viessmann boilers can cost up to £3,500 including installation. Prices can increase if additional labour is required for the boiler replacement, such as scaffolding or pipework modifications. 

When you invest in a Viessmann boiler, you can have peace of mind in knowing that you are paying for a high quality and reliable system.

All Viessmann boilers are built with stainless steel heat exchangers and other quality parts, so you can rest assured that you’ll get value for the money you spend.

You should always ensure that your new boiler is installed by a Gas-Safe registered engineer.

Are Viessmann cheaper than Worcester Bosch?

You can find out how much a Viessmann boiler could cost to install in your home by getting a free quote from our quick and easy online quote tool. Like with Worcester Bosch boilers, you may also have the option to spread the cost of your new Viessmann boiler with a boiler finance payment plan. 

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?


Are Worcester Bosch combi boilers better than Viessmann?

Looking for an efficient combi boiler? If so, a Worcester Bosch combination boiler could be the ideal solution for your needs.

With a range of combi boiler models, Worcester Bosch has a diverse catalogue of gas combi boilers to suit the needs of every home.

This brand has combi boilers of different sizes, equipped with a range of features and functions to make heating your property an easy task.

Want to compare other boiler brands? Check out our other comparison guides here:

Is the Worcester Bosch Greenstar range any good?

viessmann or worcester energy efficiency

Popular combi boilers from the brand include the Worcester Greenstar 4000 25kW and Worcester Greenstar 4000 30kW (formerly the Greenstar 25i and 30i boilers), along with the boilers in the Greenstar 8000 Life and Style ranges.

The Worcester Bosch combi boiler range includes systems with kW outputs of up to 50kW, this means that you can purchase high power combi boiler systems for properties with particularly high heating and hot water demands.

Are Worcester boilers more efficient than Viessmann?

All of the combi boilers manufactured by Worcester Bosch are designed to be compact, energy-efficient and high performance – delivering both hot water and heating through just one single unit. 

Worcester Bosch combi boilers typically cost up to £2,500 to install. Get a quote for a new Worcester Bosch combi boiler today.

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?

Are Viessmann combi boilers better than Worcester Bosch?

Viessmann, similarly to Worcester Bosch, has a variety of combi boilers on offer – although their range of combi boilers is not as diverse.

From the Viessmann Vitodens 050-W to the Viessmann Vitodens 100-W and Vitodens 222-F, you’re sure to find a suitable heating system for your home from the Viessmann Vitodens combi boiler range. 

Is the Viessmann Vitodens range any good?

vitodens 100-w efficiency rating

Viessmann combi boilers are typically available in kW outputs of 19kW – 35kW, so their range doesn’t include the high power 40kW-50kW combi boilers that are featured in the Worcester Bosch range.

Nevertheless, Viessmann’s range includes a variety of quality combi boilers that could provide excellent quality heating and hot water to a number of different homes.

Are Viessmann boiler more efficient than Worcester Bosch boilers?

All of Viessmann’s combi boilers are built to be compact and space-saving, energy-efficient, and powerful enough to provide your property with quality heating and hot water.

Manufactured with a stainless steel heat exchanger, you can count on a Viessmann combi boiler to meet your central heating needs for years to come.

Viessmann combi boiler prices can range between £1,800 to £3,500 including installation. Prices can vary depending on the combi boiler model and size selected, as well as the complexity of the installation process.

Get a quote for a new Viessmann combi boiler today and find the boiler best suited to your needs, along with the potential cost of the installation.

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?

Worcester Bosch vs Viessmann: Which is better for your home?

After a detailed analysis of both brands, it’s safe to say that both manufacturers offer an extensive boiler range. Both Worcester Bosch and Viessmann have their own unique features and advantages, and this can make it difficult to decide between the two.

viessmann h2 ready

Worcester Bosch has an incredible reputation behind them, manufacturing boilers that are fit for a Queen (literally!).

Meanwhile, Viessmann is notorious for creating boiler systems that are reliable and excellently built, equipped with a stainless steel heat exchanger.

Choosing the best boiler brand between Viessmann and Worcester Bosch

So, which brand is the best option for your home? Taking all factors into consideration, we’ve come to the conclusion that both Worcester Bosch and Viessmann manufacture superb boilers, and any of the two brands could provide you with an excellent heating solution for your home.

If you’re looking for innovation and energy efficiency, a Worcester Bosch boiler could be the best option for your household. However, if you’re looking for reliability and peace of mind, you may find that a Viessmann boiler is the most suitable choice.

The brand best suited to your property will be reliant on your heating and hot water requirements, as well as the size of your home.

The best way to find out which brand, Worcester Bosch vs Viessmann, is best suited to your home is to utilise a free online quote tool. This way, you can get a personalised recommendation for a suitable boiler system for your home, as well as an estimate of costs.

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?

Getting a new boiler Viessmann boiler or Worcester boiler with Boiler Central 

Whether you decide to get one of the Worcester Bosch boilers or Viessmann boilers installed into your property, Boiler Central are here to ensure that you get the best boiler for your needs at an affordable price.

boiler central logo

We supply and install a range of Worcester Bosch and Viessmann boilers, and our Gas Safe engineers have the skills and expertise to provide you with a first-class boiler installation at a time most suitable for you.

Additionally, all of our boilers come with manufacturer-backed warranties to provide you with added peace of mind in knowing that you could be covered in the event of a boiler breakdown or fault.

To find out how much your new boiler could cost, simply enter a few details regarding your home and central heating needs into our free online quote tool.

Then, in just a few moments, you’ll be provided with a free quote for your new boiler installation. From there, our team is on hand to guide you through the installation process – we’ll even provide you with details on our boiler finance offers.

Try our free online quote tool today to kickstart your new Worcester Bosch or Viessmann boiler installation.

Get an online fixed price in 20 seconds:

What kind of fuel does your boiler use?
Written by
James Elston
James Elston Director Of Boiler Central
Posted on: 30th November 2023
Topic: Boiler Guides

James Elston is our resident boiler replacement and heating expert here at Boiler Central. With over 20 years experience in the boiler installation industry, James ensures that he knows everything there is about our Gas Safe boiler installations, energy saving and home heating solutions. This can be from simply procuring the latest best combi boilers, to reviewing and ensuring that Boiler Central maintains the highest standards across our boiler installation company.

Buy a new boiler in minutes

Instant online quotes. Nationwide next-day fitting

Get my fixed price
Get a great price on a Which? Best Buy boiler online in 20 seconds
  • Over 15,000 boiler installed
  • Rated Excellent on Trustpilot
  • Fair, fixed and final prices
  • No pushy salespeople
  • Next-day installation
  • 0% deposit interest-free finance
Next-day fitting available until 2pmGet a quote now >