50kW Combi Boiler Review & Price Guide 2024

Introducing the best 50 kW boilers – the perfect high output gas boiler option for your large home with multiple bathrooms.

When buying a new boiler, you need to choose the perfect output for your hot water demands. With their powerful performance, advanced technology, and key features to ensure they can cope with high demand, you can trust that your home will be warm and comfortable all year round.

Luckily, these 50kw combi boilers have a relatively compact design that makes them easy to install and maintain, saving you time and money. Plus, with their high-efficiency rating, you can keep your home warm while also reducing your energy bills.

What is a 50 kW combi boiler?

A 50 kW combi boiler is exactly the same as any normal combi boiler but has a much higher output rating, that generates more heat by using energy, typically natural gas, propane or oil.

These high output gas boilers are commonly used in large homes to heat water for the central heating system and hot water outlets such as showers and baths.

Who can use 50 kW boilers?

A 50kW combi boiler is designed for homes with high water usage but lacks space for a hot water tank. Whilst the most common output of a combi boiler is around 30kw for the average home, 50kW boilers are frequently used in homes requiring a significant amount of heat or hot water on demand.

The Best 50kw Combi Boilers

When it comes to the best combi boilers, we look at the main things homeowners want. The most reliable combi boiler as well as the most energy efficiency combi boiler to ensure that they are getting the best deal on their boiler as well as saving money on their energy bills.

From the limited choice that there is, here are the best 50kw combi boilers we could find. If you want a wide range combi boilers to choose from read our guide here on the best options.

Worcester Bosch Greenstar 8000 50kw

When it comes to combi boilers for larger homes with higher hot water demand, we can confidently say that the Worcester Bosch Greenstar 8000 50kW combi boiler is a powerful combi boiler and one of the best on the market.

This powerful wall hung boiler is perfect for larger homes, and even comes with a stylish gloss back finish if you want to show off this magnificent boiler as part of a feature in your home.

Worcester bosch 8000 50kw main features

• 94% energy efficiency rating helps lower energy bills and carbon emissions through innovative controls and a unique heat exchanger design.
• The cupboard design makes it suitable for spaces in between kitchen cupboards with limited room for installation.
• Features digital controls for easy operation and troubleshooting, with the option for remote monitoring and diagnostics to detect and prevent issues.
• Comes with a long-term warranty with a 12 year guarantee and has been extensively tested for quality and reliability.
• High direct hot water flow rate of up to 16 litres per minute, making it ideal for larger homes.
• Advanced technology, high efficiency, and ease of use make it a top choice for a reliable and efficient heating solution for homes.
• Intelligent filling system to maintain optimum pressure in your boiler as well as built in wifi to use with the Bosch EasyControl smart thermostat.

The Vaillant EcoTec Plus 48k

The Vaillant EcoTec Plus is a high-performing combi boiler created to offer dependable heating for your home or place of business. The EcoTec Plus stands out from the competition thanks to a few crucial features, in addition to its remarkable technical specifications.

Vaillant, the company that makes the EcoTec Plus, is recognised for its top-notch customer service and extended warranties in addition to all these features, which can add peace of mind.

The Vaillant EcoTec Plus is a high-performance heating system that combines efficiency, dependability, and cutting-edge technologies that set it apart from the competition.

The Valliant EcoTec Plus Main Features:

• The EcoTec Plus’ revolutionary “quiet mark” certification, which certifies that it is one of the quietest boilers, is one of its most prominent characteristics.
• The EcoTec Plus’ sophisticated control system, which enables accurate temperature control and monitoring, is another distinctive feature.
• Additionally, the EcoTec Plus is built with a durable stainless steel heat exchanger, which is designed to last for the lifetime of the boiler.
• Not to forget, the Vaillant EcoTec Plus boasts a remarkable efficiency rating of up to 94%, which means it may aid in lowering energy expenses and lowering carbon emissions.

Worcester GB162 50kw

The Worcester GB162 50kW combi boiler is a cost-effective alternative to the Greenstar 8000 and has the reliability to be one of the best.

One of the primary reasons it ranks third is because it has a lower efficiency rating when compared to other models on the market, as well as a slightly lower flow rate.

Worcester GB162 50kw Features:

• The GB162 is a cost-effective and efficient heating solution with a 93% efficiency rating, helping to lower energy costs and reduce carbon emissions.
• It has a compact design, digital controls, remote monitoring capabilities, and a long-term warranty.
• With a high flow rate of up to 15 litres per minute and the ability to handle demanding applications, it is suitable for large homes.
• The GB162 is made of high-quality materials and designed to last, with low NOx emissions.
• It can be mounted in several ways and runs on various fuels, making it a versatile choice for homes without access to mains gas.

What is the difference between a 50 kW boiler and a smaller boiler?

A 50kW boiler has a higher heating output and is capable of heating larger spaces than smaller boilers.

Advantages and Disadvantages of having a 50kW Boiler:

The advantages of having a 50kW boiler include:

• High heating output: 50kW boilers are capable of producing a large amount of heat, making them well-suited for large homes.
• Energy efficiency: These boilers are designed to be energy efficient, which can help to lower running costs and lower carbon emissions.
• Easy to operate: Many 50kW boilers come with digital controls, making them easy to operate and troubleshoot.
• Long-term warranty: Many manufacturers offer long-term warranties for their 50kW boilers, which can provide added peace of mind.

Disadvantages of having a 50kW boiler include:

• These boilers require more area than smaller boilers because of their size, therefore your company may need to make additional room for them.
• High maintenance: 50kW boilers with huge sizes require more maintenance than boilers with smaller sizes, which might raise costs. You will have to pay the same boiler service cost every year too, to maintain the warranty.
• Noise: Some models may be fairly loud, which may be a problem in places like homes or businesses.

It’s important to carefully consider the advantages and disadvantages of having a 50kW boiler before making a decision.

50kW System Boilers

System boilers are a type of central heating boiler that provides hot water for both heating and domestic use. They are also a popular choice for big properties due to their efficiency and ease of installation and ability to deliver lots of hot water to multiple taps at once.

This is due to the fact that these system boilers use a separate hot water storage tank that is kept ready and waiting for you when required. Due to having this abundance of hot water, you can have a powerful shower or a bath that is full in minutes.

If this tank becomes empty, however, you will then have to wait for it to fill up and become warm again, which is where the powerful combi boiler wins.

What is The Best 50kw System Boiler?

1. Worcester Bosch Greenstar 8000 life 50kw system boiler
2. Worcester Bosch GB162 50kW system gas boiler
3. Vaillant ecoTEC plus 48kW system gas boiler

As you can see, the list is very similar to the combi boiler one, mainly due to the limited amount of 50kw system boilers available but they do come with the same features. One benefit of using a hot water cylinder is that you could also use an immersion heater to aid in keeping the water hot to keep gas bills down.

Understanding 50kw Boilers for Central Heating and Domestic Hot Water Supply

A 50kw boiler system can work independently or as part of a multi-boiler cascade system. A multi-boiler cascade system is where multiple boilers work together to meet the heating and hot water demand of a large property or building.

This type of system is more effective for commercial properties and provides greater control over the heating and hot water supply.

When it comes to domestic hot water, a 50kw boiler can provide an abundant supply of hot water to meet the demands of a family or small business. The central heating system can also be effectively managed to ensure a comfortable and warm living or working environment.

In conclusion, a 50kw boiler is a reliable and a reliable solution for both central heating and hot water supply for a medium to large property or building.

50kW Boiler FAQs

Is a boiler with a higher kilowatt better?

A higher kilowatt (kW) boiler may be better for some applications, but it depends on the specific needs of the property and the type of heating system being used.

For example, if a property has a large heating load and requires a high volume of hot water, a higher kW boiler would be more suitable. In large homes, where applications are in great demand, a higher kW boiler would be a better option as it would be able to meet the demand and maintain consistent heating.

On the other hand, if a property has a smaller heating load and does not require a large volume of hot water, a lower kW boiler would be more appropriate.

For example, a small apartment or a house with low heating demand, a lower kW boiler would be sufficient to meet the needs without wasting energy or money.

Read our what size kw boiler for my home guide here

How much does a 50kW boiler cost?

The cost of a 50kW boiler can vary depending on the manufacturer, model, and specific features. It can be more expensive than smaller boilers, but the energy savings over time can offset the initial installation costs.

How much space is required for a 50 kW boiler?

The size of a 50kW boiler will depend on the specific model, but they tend to be larger than smaller boilers. It’s important to consult with a professional to ensure that you have enough space for installation.

What is the lifespan of a 50kW boiler?

The lifespan of a 50kW boiler can vary depending on the manufacturer and model, but most have a lifespan of around 15-20 years with regular maintenance.

What is the efficiency of a 50kW boiler?

The efficiency of a 50kW boiler can vary depending on the manufacturer and model, but many are designed to be highly energy efficient. It’s important to check the efficiency rating before making a purchase.

What are the servicing requirements for a 50kW boiler?

The maintenance requirements for a 50kW boiler can vary depending on the manufacturer and model, but it typically requires regular cleaning and servicing to ensure optimal performance.

Regular maintenance may be required and you must get a boiler service every year if you want your boiler’s warranty to not be voided.

What are the safety concerns with a 50kW boiler?

As with any heating device, it’s important to follow the manufacturer’s safety guidelines and have regular safety inspections performed by a professional. Potential safety concerns include gas leaks and carbon monoxide emissions.

How many radiators can a 50kw combi boiler run?

The number of radiators that a 50kW boiler can run depends on a number of factors, including the size and type of radiators, the layout of the heating system, and the level of insulation in the building. Generally speaking, a 50kW boiler should be able to comfortably heat a large home with multiple radiators.

However, to give a more specific answer, it’s important to consider the BTU (British Thermal Unit) output of the boiler, which is a measure of its heating capacity. A 50kW boiler typically has a BTU output of around 170,000 to 180,000. To calculate the number of radiators that can be heated by a boiler, you need to know the BTU output of the radiator and the room in which it is located.