Worcester Bosch Vs Vaillant Boilers - HomeSage (2023)

Worcester Bosch vs Vaillant Boilers

Worcester Bosch Vs Vaillant Boilers - HomeSage (1)

Although there are a huge number of boiler manufacturers out there, the battle for ‘Top Boiler Brand’ in the UK often comes down to just two names – Worcester Bosch and Vaillant.

Both brands are household names in the UK with excellent reputations, consistent high customer satisfaction scores, and independently-verified top quality products.

Deciding which of the two brands to choose when purchasing a new boiler is not easy so this guide is here to compare the two market leaders and to help you to choose the right manufacturer for you.

In this guide, we discuss:

  • who is Worcester Bosch?
  • who is Vaillant?
  • what types of boilers do Worcester Bosch and Vaillant manufacture?
  • Worcester Bosch and Vaillant: head-to-head
  • Worcester Bosch Greenstar 12Ri Boiler review
  • Vaillant ecoTEC plus 825 Boiler review
  • who wins the battle of the flagship boilers?
  • Worcester Bosch boilers: an overview
  • Vaillant boilers: an overview
  • repairs and warranties
  • how to get new boiler installation quotes

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Who is Worcester Bosch?

Established in 1962, Worcester Bosch is a UK-based company providing solar water heating systems, gas boilers, oil boilers, heat pumps and hot water cylinders to homes and organisations all over the world.

The brand frequently wins the Which? Best Buy Awards with their outstanding boilers and they even supply the Sandringham Estate.

A recent Which? survey rated Worcester Bosch boilers five out of five for overall customer score and engineer recommendations as well as for reliability and the availability of parts.

Who is Vaillant?

Vaillant is a German company established more than 140 years ago and it currently supplies customers in 60 countries.

The business offers a cohesive blend of German design and UK-based manufacturing – all parts are easily sourced for installers when a repair is needed and all of their boilers comply with UK requirements.

Vaillant also maintains very high standards of customer satisfaction with a 4.7 out of 5 score on TrustPilot based on more than 10,759 reviews at the time of writing.

Managing Director of Vaillant UK and Ireland Klaus Jesse says that he and his team are dedicated to providing industry-leading customer service.

In this they are successful because the brand’s UK sales is driven by customer referrals and word-of-mouth reviews.

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What types of boilers do Worcester Bosch and Vaillant manufacture?

Both Worcester Bosch and Vaillant produce a wide range of different boiler types suitable for different homes and households.

These boiler types are:

Combi boilers

Combi boilers are the most common type of boilers installed in British homes.

Almost every new-build house and flat will come with a combi boiler installed and most homeowners are upgrading to this type of boiler over time.

The combi boiler is the most compact type, ideal for both small and medium-sized houses and flats, consisting of a single unit which often can fit in a cupboard or on a surface.

They take less time to install and they break down less than other types of boilers.

Regular boilers

Conventional boilers are a slightly older type of boiler and they are most often found in larger properties where there is more need for hot water around the clock.

These boilers feature a cold water storage tank which is linked to a hot water cylinder through which the water is transferred to both the taps and radiators in your home.

Although regular boilers cost around the same as a combi boiler, the installation costs are often higher because the pipework and heating system is more complicated.

System boilers

Owners of larger properties often select a system boiler to ensure a constant supply of hot water to two or more bathrooms.

With a system boiler, there is no need for a cold water tank as the hot water cylinder stores and heats the water ready for distribution to your taps and radiators.

System boilers are also popular with homeowners as you can use two or more taps around your property at the same time with no reduction in water pressure.

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Worcester Bosch and Vaillant head-to-head

There are hundreds of different boiler models available on the market today, making it feel to many like it’s almost impossible to choose the right one for your home.

We are dedicated to helping our readers make an informed decision when choosing their new combi boiler.

With that in mind, we have designed a system unique to our site which ranks boilers according to energy efficiency rating, warranty, output and price.

Looking in-depth at these metrics should give you a better idea of the right boiler type for you and your home.

Before we compare Worcester Bosch and Vaillant in more depth, we will first look at how the two compare across their entire ranges.

ManufacturerAverage priceEnergy efficiencyHomeSage score
Worcester Bosch£1,39193.39%90.25%

Vaillant is clearly the winner here when it comes to price but Worcester Bosch takes the lead on both energy efficiency and the overall HomeSage score.

However, with just a 3% difference in average energy efficiency, the money saved on energy bills over time with Worcester Bosch boilers is negligible in comparison with the huge £202 difference in average price between the boilers.

To look more thoroughly into the range, it is best to compare the two best HomeSage-rated gas-powered combi boilers – one from each manufacturer.

These are:

  • Worcester Bosch Greenstar 12Ri Boiler
  • Vaillant ecoTEC plus 825 Boiler

Both boilers are ideal for smaller houses and flats.

Worcester Bosch Greenstar 12Ri Boiler review

Worcester Bosch Vs Vaillant Boilers - HomeSage (2)
Make and Model NameEfficiency RatingParts and Labour WarrantyOutput kWPrice fromTOTAL
Worcester Bosch Greenstar 12Ri Boiler92.00%6012£80079.57%

One of the most striking features of the Worcester Bosch Ri range is the small size. All of the boilers in the range are the same size: 600mm x 390mm x 270mm.

This is more than small enough to fit inside most kitchen cupboards allowing the boiler to be tucked away out of sight.

The 12Ri is so named in reference to the central heating output of the boiler – in this case, 12kw.

The boiler is incredibly energy efficient with the heat exchanger constructed from cast aluminium and silicon ensuring no energy waste through the boiler flue.

The Greenstar Ri is also notably low in NOx and CO2 emissions making it an environmentally sound option.

Meanwhile, the boiler benefits from simple control knobs and a basic, user-friendly display.

The stylish display allows homeowners to easily set their desired temperature and adjust it at will to ensure optimal heating all year round.

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Vaillant ecoTEC plus 825 Boiler review

Make and Model NameEfficiency RatingParts and Labour WarrantyOutput kWPrice fromTOTAL
Vaillant ecoTEC plus 825 Boiler94.00%6020.4£1,13079.57%

The Vaillant ecoTEC Plus 825 offers a slightly larger central heating output of 20.4kw, ideal for small properties and flats but also able to heat properties up to 3 bedrooms with 1 bathroom.

The boiler measures 720 x 440 x 338mm making it a little larger than the Worcester Bosch and meaning that it may not be as suitable for installing inside a kitchen cupboard.

However, the ecoTEC Plus is still a sleek and compact boiler with a simple control panel installed under the front flap for ease of use.

The controls are user friendly, allowing you to quickly switch off the boiler or lower the temperature.

This Vaillant model also offers a wide range of optional controls alongside the boiler for even better handling of the output.

The boiler can also be used with a Smart Thermostat which allows the user to operate it from their smartphone or tablet.

The Vaillant ecoTEC Plus 825 is a high-performance, energy efficient boiler with an ErP rating of 89.3% – an A grade for efficiency.

Additionally, the ecoTEC Plus range has been awarded the QuietMark as a design with reduced noise production.

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Who wins the battle of the flagship boilers?

While it is an incredibly close race between Worcester Bosch and Vaillant, the Vaillant boiler range edges the competition very slightly, thanks to its stainless steel heat exchanger which provides a more robust system designed to last.

Vaillant is also more popular with engineers who tend to agree that their boilers are easier to install, and simpler to repair.

Installers also highly rate the simple control panel allowing repairs and adjustments to be made quickly over the phone.

Worcester Bosch boilers

At the time of writing, Worcester Bosch has a range of 49 gas-powered boilers.

These average out to around £1,391 across the entire range of combi, regular and system boilers.

Worcester Bosch top 5 combi boilers

Of the 21 gas-powered combi boilers in Worcester Bosh’s range, the top scored 5 are:

Make and Model NameEfficiency RatingParts and Labour WarrantyOutput kWPrice fromTOTAL
Worcester Bosch 2000 25kw Boiler93.00%609£76091.89%
Worcester Bosch 2000 30kw Boiler93.00%6010.8£87091.62%
Worcester Bosch Greenstar 25i Boiler94.00%609£95591.41%
Worcester Bosch Greenstar 28CDi Compact Boiler94.00%6010£98091.35%
Worcester Bosch Greenstar 25Si Compact Boiler94.00%608.9£1,05591.16%

Worcester Bosch top 5 regular boilers

Worcester Bosh have 14 gas-powered regular boilers in their range, boasting an average HomeSage rating of 90.44%.

The top 5 are:

Make and Model NameEfficiency RatingParts and Labour WarrantyOutput kWPrice fromTOTAL
Worcester Bosch Greenstar 12Ri Boiler92.00%6012£80091.79%
Worcester Bosch Greenstar 15Ri Boiler92.00%6015£82591.72%
Worcester Bosch Greenstar 18Ri Boiler92.00%6018£88091.59%
Worcester Bosch Greenstar 24Ri Boiler92.00%6024£93591.45%
Worcester Bosch Greenstar 21Ri Boiler92.00%6021£97591.36%

Worcester Bosch top 5 system boilers

All of the top 5 scored gas-powered system boilers in Worcester Bosch’s range are from the renowned Greenstar Ri range.

They are:

Make and Model NameEfficiency RatingParts and Labour WarrantyOutput kWPrice fromTOTAL
Worcester Bosch Greenstar 9i Boiler93.00%609.2£88091.59%
Worcester Bosch Greenstar 12i Boiler94.00%6012.2£89091.57%
Worcester Bosch Greenstar 15i Boiler94.00%6015.3£95091.42%
Worcester Bosch Greenstar 18i Boiler94.00%6018.4£1,00591.29%
Worcester Bosch Greenstar 21i Boiler94.00%6021.6£1,01591.26%

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Vaillant boilers

Vaillant’s range of gas-powered boilers currently stands at 49 models, and has an average price of £1,189.

Here we list the top models in their ranges of combi, regular and system boilers.

Vaillant top 5 combi boilers

Vaillant has 14 gas-powered system boilers in their range, boasting an average HomeSage rating of 84.12%

The top 5 are:

Make and Model NameEfficiency RatingParts and Labour WarrantyOutput kWPrice fromTOTAL
Vaillant ecoTEC exclusive Green iQ 627 Boiler94.00%8427£1,08088.85%
Vaillant EcoTEC Plus 64 Boiler94.00%6064£1,47086.23%
Vaillant Home 25 Boiler89.40%2425£81085.34%
Vaillant ecoTec plus 624 Boiler89.40%6024£98584.91%
Vaillant ecoTec plus 630 Boiler89.40%6030£1,12584.57%

Vaillant top 5 regular boilers

Four out of the five top scored gas-powered regular boilers in the Vaillant range are from the ecoTEC range.

There are 14 regular boilers in the range, and the top 5 are:

Make and Model NameEfficiency RatingParts and Labour WarrantyOutput kWPrice fromTOTAL
Vaillant ecoTEC plus 418 Boiler89.30%6018£86087.72%
Vaillant ecoTEC plus 415 15 Boiler88.70%6015£77585.43%
Vaillant ecoTEC plus 412 Boiler89.30%6012£81085.34%
Vaillant Home 30 Boiler89.40%2430£90585.11%
Vaillant ecoTEC plus 424 24 Boiler89.30%6024£95584.99%

Vaillant top 5 system boilers

Vaillant has 14 gas-powered system boilers in their range, with the top 5 being:

Make and Model NameEfficiency RatingParts and Labour WarrantyOutput kWPrice fromTOTAL
Vaillant ecoTEC exclusive Green iQ 627 Boiler94.00%8427£1,08088.85%
Vaillant EcoTEC Plus 64 Boiler94.00%6064£1,47086.23%
Vaillant Home 25 Boiler89.40%2425£81085.34%
Vaillant ecoTec plus 624 Boiler89.40%6024£98584.91%
Vaillant ecoTec plus 630 Boiler89.40%6030£1,12584.57%

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Repairs and Warranties

Both Worcester Bosch and Vaillant have at least a five year warranty included as standard with their boilers.

They both employ UK-based engineers available to help customers over the phone and in the home.

In the rare event of a breakdown, parts are readily available in the UK meaning a minimal waiting time when a repair is needed.

Both manufacturers also offer extended warranties of up to 10 years.

For Vaillant, there is a charge for an extended warranty whilst Worcester Bosch offers this for free.

To qualify for Worcester Bosch’s extended warranty, homeowners must agree to a yearly service check using pre-approved engineers and parts.

Get new boiler installation quotes

Choosing the right make and type of boiler for your home is only the first step to getting a boiler installed that works for you and saves you money.

Installation charges can add significantly to the overall cost of a new boiler.

Plus, if the installation is not done correctly, you may find that your boiler does not work as efficiently as you would like.

The best way to find the right boiler and installation process for your home is to speak with a few Gas Safe registered installers.

They can give you a quote based on what you want your boiler to do, how you want it to work, and how much energy you are looking to save.

We can help you to do this without the fuss!

Simply fill out the form on our website.

We’ll put you in touch with 3 or 4 registered engineers who will provide you with a free, no-obligation quote and the information you need to help you to make the right decision for you.

Our service is free and, if you decide not to go with any of the quotes we give you there is no penalty, so you’ve nothing to lose!

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Related articles

  • The best combi boilers
  • Worcester Bosch boiler reviews
  • Vaillant boiler reviews
  • Ideal boiler reviews
  • Baxi boiler reviews
  • Glow-worm boiler reviews
  • Viessmann boiler reviews


What is the difference between Vaillant and Worcester? ›

Vaillant is rated higher than Worcester Bosch for ease of service and repair. This means Vaillant boilers may be easier to maintain. Vaillant's boiler range use stainless steel heat exchanger which means efficiency is retained for longer.

What boilers do plumbers recommend? ›

What Are the Best Boiler Brands
  • Worcester Bosch. The number one on our list of boiler makes is certainly the most well-known — Worcester Bosch is considered by many to be one of the best boiler manufacturers out there. ...
  • Viessmann Boilers. ...
  • Ideal Boilers. ...
  • Vaillant. ...
  • Baxi. ...
  • Alpha Boilers. ...
  • Potterton. ...
  • Glow Worm.
Jul 7, 2022

Are Worcester Bosch boilers worth it? ›

Fortunately, Worcester Bosch has some of the best customer reviews on the TrustPilot platform and is far better than any other boiler manufacturer at all. Worcester Bosch has gained an incredible number of user reviews. As of January 2021, nearly 20,000 customers left a review.

How many years should a Worcester Bosch boiler last? ›

There is no exact time frame on how long your boiler will last, however, the average life of a boiler is usually between 10-15 years.

What is the best and most reliable boiler? ›

The top 5 best combi boilers chosen by our experts in 2023 are:
1stViessmann Vitodens 050
2ndWorcester Bosch Greenstar 4000
3rdWorcester Bosch Greenstar 2000
4thIdeal logic C30
5thViessmann Vitodens 100-w
Jun 26, 2023

Why choose a Vaillant boiler? ›

Vaillant System Boiler Range

Vaillant system boilers focus on outstanding performance: low energy consumption for hot water and central heating – and lower fuel bills for you. Vaillant builds boilers that are efficient, easy to use, reliable, and quiet.

What is the most efficient boiler system? ›

Condensing gas boilers are the most cost-efficient. Gas is the cheapest fuel compared to electricity, oil, coal, and LPG. You can also switch to a low-carbon heating heat pump that reduces the cost depending on the fuel type and system you are replacing.

What boiler do I need for a 4 bed house? ›

As your home has four bedrooms, you would require a combi boiler with an output between 35-43kW. If you live in a medium sized home with up to 15 radiators, you would most likely need a 35kW boiler, whereas if you live in a large house with up to 20 radiators, you'll need a 43kW boiler.

Why is my Worcester Bosch boiler so noisy? ›

Have you noticed your Worcester Bosch boiler suddenly making strange noises? It may be a sign of a problem. Commonly, a noisy boiler is caused by either limescale build-up on the heat exchanger, or sometimes an airlock in the central heating pump.

Why choose Worcester Bosch? ›

Our Guarantee

Every one of our products is manufactured to the highest quality standards. We know having a boiler you can rely on is extremely important, and with Worcester Bosch boilers we have guarantees of up to 12 years, giving you peace of mind year after year.

What rating is a Worcester Bosch boiler? ›

Worcester Boilers Boiler Efficiency Rating
Worcester Bosch 50/70.000Non-Condensing85.3%
Worcester Bosch 70/90-000-NI-LNon-Condensing84.2%
Worcester Bosch 70/90.000Non-Condensing83.9%
Worcester Bosch 90/110.000Non-Condensing85.1%
118 more rows

What is the life expectancy of a Vaillant boiler? ›

If you've recently bought a new boiler or you're considering when it's time to get a replacement, you will most likely be wondering how long a typical boiler lasts. For an average household, boilers will last up to 10-15 years. Though it's important to understand this timespan is conditional.

What is the longest lasting boiler? ›

Best brand for boiler lifespan
CompanyBoiler modelStandard warranty
Worcester Bosch*Any gas boiler Any oil boilerGas – 7 years Oil – 5 years
VaillantecoTEC exclusive Green iQ 627 System Gas Boiler7 years
BaxiAll EcoBlue Advance Combi boilers All Baxi Platinum Combi boilers10 years
1 more row
Dec 11, 2019

Is there a shortage of Worcester Bosch boilers? ›

Worcester Bosch Boiler Shortage

A Worcester Bosch product supply update dated 7th February 2022 confirms that the company are still being affected by supply shortages.

What are the top 3 gas boilers? ›

Best Combi Boilers of 2023 (By Brand)

#1 Viessmann Combi Boilers. #2 Alpha Combi Boilers. #3 Vaillant Combi Boilers. #4 Worcester Bosch Combi Boilers.

Which Worcester boiler is best? ›

Worcester Bosch Greenstar 4000 Combi Gas Boiler

It sits neatly in between the Worcester Bosch 2000 and the Worcester Bosch 8000 Life and Style range. The Worcester Bosch Greenstar 4000 is one of the most efficient combi boilers on the market, with an efficiency of 94% and an ErP A-rating.

Is Viessmann better than Vaillant? ›

Although Viessmann and Vaillant both offer solid boilers and both brands are A-rated by the EPC register, we think it's safe to say that in the battle of Vaillant vs. Viessmann, Viessmann has come out on top! Viessmann boilers are technologically superior and use Inox-radial stainless steel heat exchangers.

Why are Vaillant boilers so expensive? ›

Vaillant isn't the cheapest boiler brand on the market.

Well, none of the boiler prices below can compete with that, and there's a reason for it. Much like Worcester Bosch, Vaillant is a premium boiler brand. They focus on efficiency (and therefore, savings on energy bills), reliability, practicality and warranty.

Are Vaillant boilers efficient? ›

The advantages of a Vaillant gas-fired condensing boiler:

Optimum energy efficiency of up to 98% Significantly less soot and particulate matter during combustion via condensing technology. Consumption drops by up to 30% compared to an old heating installation.

Is Vaillant a good company? ›

Vaillant Group has an overall rating of 4.4 out of 5, based on over 184 reviews left anonymously by employees.

What is the most efficient home heating system in the US? ›

Geothermal systems provide the most efficient type of heating. They can cut heating bills by up to 70%. Like other types of heat pumps, they're also very safe and environmentally friendly to operate.

What type of boiler is safest? ›

Compared to traditional firetube boilers, watertube boilers are far safer, almost to the point where you don't have to worry about a catastrophic explosion taking place. The biggest reason watertube boilers are safer than firetube boilers is that they have less water inside them.

What is the best type of boiler for a family home? ›

Condensing boilers are the best types of boilers for the environment. Condensing boilers allow you to heat your home in a way that's much more efficient, and that means you'll save money on your heating bills and save energy as well.

Should I replace a 25 year old boiler? ›

If your boiler is over 25 years old it is likely you require a replacement. Most boilers that are over 25 years old are now viewed as being inefficient compared to modern alternatives.

Which boiler is cheapest to run? ›

Gas boilers, on the other hand, are the cheapest way to heat a house since they are more affordable to run than electric boilers.

Do boilers get less efficient with age? ›

Older boilers are much less efficient than modern condensing boilers. The energy efficiency of an older boiler can be as low as 60% – which is a G rating. With a G-rated boiler, 40% of the energy you pay for is going to waste rather than heating your home.

What size boiler for a 2000 sq ft house? ›

Example: What Size Boiler Do I Need for 2,000 sq ft? So all you have to do is take the square footage and multiply it by 30. If your home is 2,000 square feet than you will need about 60,000 BTUs.

How much is a boiler for a 2000 sq ft house? ›

Cost by Home Size
Home Size (Square Feet)Boiler Capacity (BTU)Price
1 more row
Feb 15, 2023

What is the most common household boiler? ›

There are three main types of boiler: combi, heat only and system. Heat only boilers (aka conventional or regular) work with a cylinder in the airing cupboard. System boilers are often found in modern homes with an 'unvented' hot water cylinder (but they can work with a vented cylinder also).

How noisy is a Worcester Bosch boiler? ›

Worcester Bosch Greenstar 4000

This system boiler has a dB of 42, making it a very quiet and efficient boiler.

Why does my Vaillant boiler make a banging sound? ›

Banging or whistling noises, for example, are a sign of boiler kettling; the term used to describe water reaching boiling point inside the boiler, which creates steam and causes pressure to potentially rise to higher levels.

Why does my Worcester Bosch boiler keep losing pressure? ›

If you are constantly losing pressure in the heating system you could try the following to establish the cause: Check all visible joints including radiator valves and connections for obvious signs of leakage. Ensure that there are no leaks to any underfloor pipework.

What is the ranking of Worcester? ›

University of Worcester Ranking
Ranked ByRankings of 2022
Complete University Ranking87
THE Guardian Ranking92
The Times Ranking91
The Sunday Times Ranking91

Does Worcester Bosch have stainless steel heat exchanger? ›

Viessmann boilers have their own patented stainless steel inox radial heat exchanger. This is unique to the Viessmann boiler range whilst many other boiler manufacturers including Worcester Bosch use an aluminium heat exchanger and in most cases is sourced by a third party manufacturer.

Why is Worcester popular? ›

1) The Second Largest City in New England

A bustling downtown, global food scene and historic cultural attractions are just the beginning of Worcester's allure. Locals and visitors alike can find options here to fulfill every need, from stunning art to a healthy appetite.

What is the most popular Worcester Bosch boiler? ›

Worcester Bosch Greenstar 8000 Combi Gas Boiler

It's by far the best-looking boiler out there and it's the most powerful wall-hung boiler on the market, meaning there's no need to hide it in a kitchen cupboard! Worcester Bosch Life 8000 key benefits: ErP rating 94%: A-rated.

What is the best Worcester Bosch boiler for a large house? ›

Worcester 8000 system

The Worcester Bosch 8000 range includes combi boilers and system boilers – which are the best boiler option for a large home. Available in black or white, with a modern design, this boiler is energy efficient and lightweight for easy installation.

What size boiler is best? ›

What size system boiler and regular boiler do I need?
Number of bedroomsNumber of radiatorsRecommended size
More than 420+27-40kW

Do Vaillant boilers have 10 year warranty? ›

You can activate an extended 10-year guarantee on a selection of Vaillant domestic boilers.

How inefficient is a 20 year old boiler? ›

Older boiler energy efficiency ratings

20 years old: 70% efficient. 15 years old: 80% efficient. 10+ years old: 85% efficient.

Is it OK to turn Vaillant boiler off? ›

Fortunately, switching off your boiler at the mains is perfectly safe.

Can a boiler last 30 years? ›

The answer is yes, a boiler can last for 30 years or even more, but as with any piece of equipment, its longevity is dependent on a number of factors. In this post, we will focus on high-pressure steam boilers for industrial and commercial applications and how best to extend their lives.

Can a gas boiler last 40 years? ›

The average life of a boiler depends on the boiler model, but generally, it should last you anywhere between 10 and 15 years. If you maintain your boiler regularly, however, it could even exceed this standard lifespan.

What is the average life of a Worcester Bosch boiler? ›

There is no exact time frame on how long your boiler will last, however, the average life of a boiler is usually between 10-15 years.

How much does it cost to replace a Worcester boiler? ›

Prices for a standalone Worcester Bosch system boiler range from between £800 to £3500 and are available in multiple different sizes. Again, this is for the boiler alone. Not flue, no controls, no labour, nada. It essentially gives you a giant system on your doorstep you can't even install yourself.

How long is a Worcester Bosch boiler warranty? ›

The guarantee on Greenstar gas boilers starts from 5 years. However, we offer an exclusive 10 year guarantee to customers who choose a local Worcester Bosch Accredited Installer to install their boiler along with a Worcester Bosch Greenstar system filter.

What brand is Vaillant? ›

The Vaillant Group is a company that develops products for heating, cooling and hot water. The company employs ~16,000 people worldwide and generates an annual turnover of approximately 3.3 billion euros. This makes the Vaillant Group one of the largest companies in its sector in Europe.

Is Vaillant a German company? ›

More than 140 years have passed since Johann Vaillant founded his master-craftsman installation business in a small half-timbered house in Remscheid/Germany.

What is the average price of a Vaillant boiler? ›

If you want a Vaillant boiler installed, you are looking to pay between £800 to £2600 and they are available in a range of sizes, although it is worth remembering that this does not include Gas Safe installation or any additional materials or labour that may be required.

Is there a shortage of Vaillant boilers? ›

Our industry sources tell us that Vaillant appear to be experiencing shortages, with Vaillant boilers becoming increasingly difficult to source.

Who are Vaillant competitors? ›

Vaillant's competitors
  • Vaillant.
  • Danfoss.
  • A.O. Smith.
  • BDR Thermea Group.
  • Ariston Thermo Group.
  • Bosch Thermotechnik.
  • Viessmann Werke.

What is the best gas boiler for my home? ›

Top 10 best boiler brands
  • #1 Worcester Bosch.
  • #2 Viessmann Boilers.
  • #3 Alpha Boilers.
  • #4 Ideal Boilers.
  • #5 Valliant Boilers.
  • #6 Baxi Boilers.
  • #7 Glow Worm Boilers.
  • #8 Potterton Boilers.
Jan 5, 2023

Which boiler has highest thermal efficiency? ›

A typical condensing boiler has a thermal efficiency of 92-95%, in comparison to non-condensing boilers which typically have efficiencies of around 85%. These higher efficiencies are achieved by using the waste heat in the flue gases to preheat the water entering the boiler.

What type of boiler is a Vaillant boiler? ›

System boilers, also known as sealed system boilers, are the perfect solution for larger family homes where you might have many people using multiple sources of hot water at the same time.

Who owns Worcester Bosch? ›

Worcester Bosch are part of the Bosch Home Comfort Group.

Where are Vaillant boilers made? ›

The facility makes Vaillant's Derbyshire factory the first to produce both heat pumps and boilers in the UK.


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