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Vaillant Combi Boilers

Vaillant Combi Boilers

Vaillant combi boilersThe range of Vaillant combi boilers comprises of the revolutionary EcoTec technology, which guarantees that homeowners will benefit from a powerful, reliable and efficient heating and hot water performance upon demand.

Order one of our cheap Vaillant Combi Boilers today to enjoy some of the lowest prices around and delivery within 2 working days as standard.

There's a range of different boilers available in the EcoTec series making it ideal for any property.

What Vaillant Combi Boiler do you need? View our Vaillant Combi Boiler guide for more information.

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9 Products

9 Products

Vaillant Combi Boiler Overview:

There are 3 different Vaillant boiler ranges available within Vaillant’s ever popular EcoTec series. Every boiler included in these 3 boilers ranges is an A-rated condensing boiler, meaning customers can rest assured that they will be receiving a reliable hot water and central heating performance from 1 of the UK’s top boiler brands.

There are a number of different boiler models within each range that have been developed to offer the consumer different options where it comes to central heating output and hot water flowrate – so there’s something for all homes, no matter how big or small.

A overview of each boiler range is provided below for your reference:

2 year warranty in Ecotec Pro boilers

  • Vaillant EcoTec Pro – A very popular range for smaller properties such as 1 bedroom houses, flats and apartments, the EcoTec Pro range offers consumers an A-rated condensing boiler that comes with a 2 year warranty as standard. There are 2 natural gas models models available in the EcoTec Pro range; the Vaillant Ecotec Pro 24 combi boiler and the Vaillant Ecotec Pro 28 combi boiler). LPG fed versions of these boilers are also available.

  • 5 year warranty in Ecotec Plus boilers
  • Vaillant EcoTec Plus – The EcoTec Plus Combi Boiler range is probably the most popular in Vaillant’s EcoTec series largely due to the fact that it is capable of dealing with the hot water & heating demands for a broad range of medium to large sized properties (making it possible to find at least 1 boiler in the range that it suitable for properties with 2-3 bedroom properties with 1-2 bathrooms). There are 4 boiler models in the Plus range, the 824, 831, 837 and 937 models. The Vaillant Ecotec Plus 824 Combi boiler is very similar to the Pro 24 model, but comes with an extended warranty of 5 years rather than 2 years and also has a front flap, helping to hide away the lights and controls. The Vaillant Ecotec 831 Combi boiler and Vaillant EcoTec 837 Combi boiler are probably the biggest sellers as they have stronger flowrates and central heating outputs, making them ideal for 2-3 bedroom properties. The Vaillant Ecotec 937 Combi boiler is a bit different from the others as it offers a higher level of hot water performance due to the integrated 'actoSTOR' storage tank. Like the Pro range, the Plus Combi boiler range runs off a natural gas supply but is also available as a LPG version. EcoTec Plus boilers currently come with a 5 year warranty as standard and can be delivered FREE of charge to your door within 2 working days, in many cases the next working day.

  • 5 year warranty in Ecotec Exclusive boilers
  • Vaillant EcoTec Exclusive – For larger properties of 3+ bedrooms and 2+ bathrooms it is worth looking at the EcoTec Exclusive range. With large central heating outputs and strong flowrates, the Vaillant EcoTec 832 Combi boiler and Vaillant EcoTec 838 Combi boiler (both natural gas and LPG models) are able to deal with a high demand for hot water & heat. EcoTec Exclusive boilers currently come with a 5 year warranty.

Purchase A Vaillant Boiler, Enjoy Affordable Luxury Today!

About Vaillant

Vaillant offers a wide range of broilers that can help outfit your home successfully. It is the best known brand of heating equipment in the UK. This company has been known as a leader in heating, renewables and hot water heating.

While they are a global company, they still have the family business values they have been known for over the last 140 years. They manufacture their products in eight different countries, and exports to over 60 different countries. The EcoTec range of broilers is possibly the best range of boilers on the market.

Sustainability has always been at the forefront of Vaillant's company, and they have worked hard to develop products that are both sustainable and efficient. Coming up with products that make the lives of their clients easier, while providing comfort for their homes is of the utmost importance to Vailant. . Vaillant is also the favourite brand of many installers due to their ease of installation, product reliability and outstanding aftercare service for all their clients.

What Does Vaillant Offer?


Vaillants wide ranges of products meet almost any requirements for any homeowner. They offer high quality heating, cooling and air conditioning for any products. They have modelled many of their products off of the German ideal of efficiency.

For generations Vaillant has been providing a sense of wellbeing for people all over Europe.


Vaillant cares about their customers. Not offer do they offer premium products for a reasonable price, they also design products that are beneficial for the environment. The company offers the highest standards of innovation, convenience, design and most importantly sustainability. You can feel good about installing one of Valiant's products. Their motto is “The good feeling of doing the right thing”

Customer Care

Vaillant closely with their technicians and provide them with the training necessary to install their products exceptionally. A large network of skilled installation professionals and service employees ensure that products are always operating effectively.

They will be able for support all the way from commissioning new products, as well as with maintaining existing systems. They have a skilled team of installers and specialist partners that will help you with any issues of your Vaillant product.

For the best results from your boiler, and to select the most cost effective system, your professional boiler installer should carry out a full heat loss calculation. By taking into consideration the age of your property, size of your property, number of occupants, and number of bathrooms, the technician will then be able to determine which model is best suited for your space.

vSmart Control

This app allows you to control your heating and hot water remotely, at any time of the day. Vaillant offers an easy to use app for your convenience. The moment this app is installed it understands how your home's heating system works . This smart app takes weather data to see how hard your boiler has to work to get your home to an appropriate temperature.

What Direct Heating Can Do For You

We offer extremely fast delivery times on all of our specialized Vaillant products and accessories. We offer warranties that are higher than any of our competitors. Actually, boilers themselves currently benefit from extended warranty periods up to 7 years, giving you added peace of mind with your boiler purchase. We also work to get you the best price available on your product purchase.

We are an online retailer of high quality heating supplies. Being a strictly internet retailer can allow us to keep our costs low, and pass on those savings to our customers. Our warehouse is based in Sittingbourne, Kent. We ship to all addresses in the UK.

Boilers By Vaillant

Vaillant offers a wide variety of boilers for any sized home. They proudly offer combination, system or open vent boilers to suit any needs. Vaillant offers an impressive guarantee on their models when they are installed by a Vaillant Advance installer, you can now get a 5 year warranty on the entry level model and a 7 year on any of their flagship models!

Gas Condensing Boilers

These models of gas-firing boilers optimize the use of supplied energy. The utilize the thermal energy that is contained in the gas flue of your broiler, which is usually lost by the chimney of other broilers.

These gas condensing boilers achieve a much higher efficiency and work to reduce both heating costs and carbon emissions. They work to achieve an energy efficiency level of up to 98%. This can drop your emissions by up to 30% from your existing, older model heater.

As with all Valiant models, there is a low initial investment. Their products are extremely high quality, but also very effective. In fact, gas condensing boilers produce significantly less soot and matter during their combustion period than traditional models.

With a gas condensing model from Valliant, you are able to take advantage of flexible expansion, with solar collectors, heat pump storage and controls. You can add any of the above functions to an existing model , at any time with Valliant’s flexible service.

However, condensing boilers need to have additions to an existing chimney. You may also need to supplement your chimney with a plastic pipe for best results. The units additional flue gas duct has a small diameter and can easily fit it into any chimney.

Energy Related Products (ERP)

The new energy-related products regulations that were implemented in September of 2015. Vaillant was among the many other manufacturers that needed to release new ERP compliant boilers. They now offer many boilers that fit with the new ERP guidelines.

As of the 28th of September, all new manufactured boilers must follow the compliancies set by the government. As a consumer, this really does not affect you, because Vaillant has made the changes necessary to fit with the new regulations.

Which EcoTEC Exclusive Range Product is For Me?

With two models to choose from, this collection has a lot to offer. Larger properties, and older homes with one or two bathrooms are ideal for this product.

The machines are highly efficient as well as economical. They run at an efficiency of 88%, which is well above industry standard. They have also been awarded quiet mark approval, for how silently they work. They are easy to use with a blue backlit scrolling text display.

These models come in both 32kW, and 38kW options. These models are perfect because they can deliver much higher than average central heating outputs, which makes these units much more effective than other models.

Vaillant ecoTEC works to manufacture some of the highest quality products available on the market today. This helps to ensure longevity and and reliability. Vaillant has even implemented features such as a controlled low energy pump, for even more energy consumption.

In fact, Vaillant was the first company to implement such technology. As of 2015, it is mandatory for all boilers to feature this, and Vaillant was far ahead of the curve.

Installation of this product typically takes around 1-2 days, but be sure to allocate time where radiators and pipe work must also be replaced.

EcoTEC Plus Combination Boiler

These models are very stylish and also are incredibly easy to use. They feature four different output models; 25,32,35, and 38kW outputs. If your model is installed by a Vaillant Advance partner, you are eligible for an additional extended guarantee. The models are quiet mark accredited, for their ability to run almost silently.

These models require no hot water cylinder or cold water tank in the loft, this combination boiler provides almost instant hot water delivery to your taps and fits simply and easily into homes even with limited space.

Why Choose A Vaillant Model Combi Boiler?

They are highly effective and can run with an SAP efficiency rating of an astonishing 89.4%. Vaillants products offer almost instant hot water delivery to your faucets. They fit easily into even the smallest homes and flats.

Vaillant promises hot water delivery in less than 5 seconds, without the need for an additional storage tank or additional water cylinder. These models work to accumulate during periods of low heat demand, to ensure maximum efficiency. When hot water is not in peak demand, they work less to save money. These Vaillant boilers only work when you need the hot water.

Don’t worry about your boiler not matching your home decor, this stylish contoured case design features a drop down flap, It complements even the most modern of homes.

What Model Is Best For You?

The 825 Model is perfect for a three or four bedroom flats that do not use a lot of hot water. It is also ideal if you own a small house and have a low hot water requirement.

Both the 832 and 838 Models are more suggested for larger properties with one or two bathrooms. All combi models use premium components for outstanding performance, and have the very best reliability and efficiency available on the market today.

EcoTEC Plus combination 938

This is an amazing boiler option for larger homes that require higher hot water demand. With these models you can enjoy hot water at all times, without needing to install a separate cylinder or hot water tanks. With Vaillant, you can receive a total system solution from one manufacturer.

You can be confident in Vaillant's services with their extended guarantee. Their models are available for guarantees when expertly installed by a Vaillant Advance partner. The best part about these models is the functionality. Vaillant boilers are attractive, and feature a stylish design. The Contoured case and improved control panel make this compact boiler a perfect fit in any home or loft where space is limited.

Quiet & Effective Boilers With Vaillant

These models are all quiet mark accredited, and are among the most quiet on the market today. This special feature means the product is capable of delivering up to 20 litres of hot water per minute which is significantly more than could be delivered by any other combination boilers on the market today.

When selecting your combination boiler from Vaillant, it is important to know that the larger the kilowatt outage you select, the greater the hot water delivery output will be. This is perfect for larger homes and lofts that need a large hot water consumption.

The installation process for these boilers takes between one and two days. There is more time needed to be allocated when both piping and radiators need to be changed. You can also feel confident with the five year guarantee offered by Vaillant.

EcoTEC Pro Combination Boilers

These exceptional boilers from Vaillant offer a wide range of models for any sized home. They come in two models, to help serve you more effectively. The ecoTec pro 24kw model is the best solution for 1-3 bedroom properties with at least one bathroom. On the other hand, the 28kw solution is perfect for 2-4 bedroom properties with 1 or 2 bathrooms.

They have a wide range of compatible controls so you can use your boiler completely at your leisure.

Enjoy Additional Features

These models run at an efficiency rating of over 89.2%, which is far above industry standard. Pro Combi Boilers feature a high efficiency pump which can reduce your energy usage, and can create lower fuel bills by simply installing this product. This model has also been awarded quiet mark approval. Now you can have a quiet machine in your home, without any additional noise.

With Vaillant's aquaCOMFORT warm start feature, you can enjoy increased hot water delivery on those cold, chilly days. No longer worry about delayed hot water delivery, you can have almost instant hot water from your Vaillant boiler. Some of Vaillants models also offer built in stage two frost protection, to help ensure optimal performance all year around. Don’t let a cold morning ruin your whole day!

Installation And Warranty

Any Pro Combi boiler from Vaillant had a standard two year guarantee. If your model happens to be installed by a Vaillant Advance installer you may be eligible for an extended warranty. A Vaillant ecoTec typically takes about one or two days to install, but when special cases arise more time is needed.

This this model you won’t need cold water tank in the loft, and it this unit will ensure you have a large body of water stored for use in your home. You also never need to worry about running out of hot water with this boiler from Vaillant.


These models come equipped with a standard five year guarantee, which is way above what is traditionally offered with purchase. If your installer is a certified Vaillant Advance technician, than the company offers a seven year, full money back guarantee.


The stylish design is perfect for almost any home, the small dimensions of this unit do not take up any space in small areas, so you can live your life comfortably in tandem with your unit. The EcoTEC Plus boilers by Vaillant are also one of the most quiet ones available on the market today. Whether you have a small loft, or large country home you can feel secure with your purchase from Vaillant.

Flame lit detection ensures more efficient usage and quieter combustion for the homeowner's convenience. There is also a new high efficiency, automatic, two speed pump in these models which effectively reduces energy consumption, and ensembles low standby power losses. Vaillant always has effectiveness at the forefront of their design.

EcoTEC Plus Open Vent Range

These models are perfect in homes which already use a traditional open vented system, with a storage cylinder and additional cold water tank. This is a great, compact and versatile kitchen boiler upgrade.

This range is available in 12kW, 15kW, 18kW, 24kW, 30kW and 38kW, so there is a suitable model for almost any home. It is best to work with your installer to determine the amount of hot water you need, so you can purchase the most effective sized boiler for your needs. The small dimensions of this unit are perfect for small, compact spaces such as a loft or kitchen.

Push button programming makes usage straightforward, and is easy for anyone to use. This range is highly economical, and runs with an efficiency rating of over 89.2%. As with most of Vaillants products, they perform well above industry standards.

We also offer free delivery service with every boiler purchase.

Vaillant Boiler Packs

We offer boiler packs to suit any home or lifestyle. They are very popular because they contain either a:

  • boiler with a flue

  • boiler with both a flue and timer.

  • Direct Heating works to save you time and money by placing together the compatible products that will be necessary for boiler installation. We allows you to compare the benefits of the different products we offer. With a wide variety of packages available, we're confident we can find one that meets your home’s requirements.

    Choose A Vaillant Boiler Today

    Here at Direct Heating Supplies, we can help you select the right Vaillant boiler for your home. You can feel confident with your selection of a Vaillant Boiler for your home. We are here to help you every step along the way, we offer technical support and can answer your questions at any time. Direct Heating is proud to offer a large selection of Vaillant boilers and accessories that ship daily from our warehouse in Kent. Choose Vaillant and Direct Heating Supplies for your boiler needs today!