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Best Combi Boilers In The UK 2021

Best Combi Boilers in the UK 2021

Boilers are unsung heroes, despite the effort they put to make our lives comfortable, most people do not think about them until when it stops working. To enjoy comfort in your home, you will need a boiler. Yet, people do not know what boilers entail and what to look for when buying these gadgets.

Do not worry we got your back, we have compiled a comprehensive list of the best Combi boilers in the UK in 2021.

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Worcester Bosch Greenstar CDi

The Worcester Bosch is one of the brands that have been hailed. The company is known to offer the finest new Combi boiler options. The company has constantly produced the most reliable boilers in the UK and is also known to offer quality products. It is no wonder that it is ranked among the top brands in the market.


Even though all their products are reliable and will offer you quality service, among the top brands is CDi classic Combi Boiler. It is a truly premium boiler and is also affordable. The CDi will offer a heating output of 30kW, which is efficient for most homes. It will offer 13-18 radiators which will fit several rooms.

Some of the features of the Worcester Bosch boilers include them being a well known brand within the UK, who boast a lot of satisfied customers. Their boilers come with simple controls that clearly display information to their end users in a manner that is easy to understand and most importantly, use. Worcester Bosch boilers have a very low risk of their condensate pipe freezing in severe weather. Below are a list of other features of the range of Worcester Bosch boilers: –

  • Wide choice of controls enables greater comfort and economy.
  • Low energy pumps reduce electrical usage.
  • Instantaneous hot water, always available.
  • Achieves an A+ ErP package efficiency rating for heating when installed with a Wave smart internet connected control.
  • High hot water flow rate.
  • Simple boiler control knobs with clear temperature display.
  • Frost protection is included, reducing frost risk if installed in a garage or a loft.

Energy Efficiency

The boiler is energy efficient since it has a high ErP rating. If you use this boiler, you will lessen the carbon footprints and also the amount you spend on energy bills. The products are an excellent boiler for many households. It is also an excellent boiler choice for homes that have a high demand for hot water.

Here are other features that make the Cdi Combi Boiler stand out:

  • Easy to repair
  • Easy to service
  • Availability of spare parts
  • High quality
  • User friendly
  • Up to 10 year warranty
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Viessmann Vitodens 100-W

Viessmann were world leaders in commercial heating boilers long before they entered the domestic boiler market. Their commercial heating boilers keep some of the largest buildings in the world warm throughout the winter months; these buildings include stadiums and factories. 

Viessmann are a boiler brand that continue to innovate and this is evident through their extensive boiler range. All viessmann boilers are able to extract all of the heat contained in the flue gases and this allows their boilers to convert this back into heating energy.

Though there are various brands you can use, try a product like the Viessmann Vitodens 100 W. This should be the go-to homeowner boiler.

  • Remarkable Internal Parts

The internal parts found in the boiler are remarkable. The device is known to have remarkable A-rating, which is why it offers the very best in efficiency. The parts used to make the machine are sturdy and that is why it will serve you for a long time.

  • Low C02 Emission

When you use the boiler in your home, it will help in reducing the carbon footprint of your home. The Viessmann Vitodens 100 comes with a low CO2 emission rating. Thus, this is what makes the boiler ideal since it will help in taking care of the environment.

  • Wireless Heating

The wireless heating thermostat is a digital device that will tell you about the temperature of the surroundings by using a thermostat. The thermostat will sense and communicate with the boiler to offer you suitable room temperatures.

Other features that make the Viessmann 100-W stand out are:

  • Gas-based Combi boiler
  • Up to 10 year warranty
  • Free Adesy sense filter
  • System Cleanses
  • Energy efficient
  • Affordable
Vaillant boiler

Vaillant ecoTec Plus Combi

Another heating system company that is known to produce the best products is the Vaillant heating system. These products are made in the UK, and they are known to offer high standards to those who use them. The products are known to give those who use them the best service.

  • High water delivery

The water boiler is known to offer a high rate of water delivery of up to 20 liters in a minute. This cannot be compared to any other boilers in the market. If you have a large family, this is will be a great option for you to use.

  • No need for a water storage tank

In case you do not have space to fit in a water storage tank or if you do not want to, this is the best option for you to use. The boiler can store up to 20 liters of water, which is convenient.

  • Smart application

The other reason this brand stands out is that it comes with a smart app system. You do not need to manually handle the system as you can do this using your smart gadgets. Thus, making it easy for the system to adjust and function.

  • Warranty

Another feature that stands out with the valiant ecoTEC Plus Combi boiler is that it comes with a10 year warranty. This will give you peace of mind when using the product. In case of any issue, the company will send a team of experts to help you manage the system.

  • High ErP ratings

Another feature you will enjoy the system is the high ErP ratings of A.

Here are other features that make the brand stand out.

  • Speedy heating of 5 seconds
  • Easy to install and use
  • Affordable
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Ideal Logic

Another company is known to offer the best boilers is Ideal. The company is known to offer quality products at an affordable rate. If you are looking for a boiler that will serve you with ease and one that will offer you value for the market then the best option is Idea Logic.

  • Compact size

The Combi boiler is compact which makes it easy for you to use. Since it is small, it is easy for you to install and use. The best part is that it will not take too much of your space,

  • Awards

The boiler has won the winner of good housekeeping awards from 2013-2017. With such a record, you can be certain you will get value for your money. If you are looking for a product that will offer you quality service, then this is the unit for you to buy,

  • Easy to use

The Logi boiler is easy to use and install. Thus, you will have an easy time when using the system. In addition, you will get value for your money.

  • Other features that make Logic the go-to boiler are
  • Can get up to 10 year warranty
  • Has a backlit LDC color display
  • Energy efficient
  • Durable
  • Availability of spare parts

Final Thoughts

Choosing the right boiler is important and when choosing, get one that will meet your needs. You can do this by going online and reviewing some boilers in the market. That will help you get one that will meet your needs. The list is of some of the best ci boilers in the UK. However, there are many more brands in the UK and you can choose the one that will meet your needs.

Michael Cornish