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Combi Boilers: Best Combi Boilers for 2018

Combi Boilers: Best Combi Boilers for 2018

The combi boiler is the most common type of boiler system in the UK and the use of combination boilers keeps on increasing year after year. Having hot water on instant demand has become a necessity for many busy British households. If you’re reading this blog post you’re probably in the market trying to find the best boiler for your needs. But with so many manufacturers and boilers available on the market it can be very confusing deciding which boiler to go for.

People ask me all the time ‘what is the best combi boiler to go for?’ so to help answer this question, I have decided to list what I feel are the best combi boilers available in the UK for 2018.


To make it easier to understand I have listed them in terms of property size as there’s no point in installing a huge boiler in a small house. When it comes to boiler sizes, biggest doesn’t always mean best.

If you’re confused about which boiler system you need for your house then check out one of my previous blog post where I explain them in detail:

What Are The Different Types Of Boiler Systems

Here are my picks for the best combi boilers for 2018:

Best Combi Boiler for 1-2 Bedroom Flat or House with 1 Bathroom:

  1.       Worcester Bosch Greenstar 25i Combi Boiler:

The Worcester Bosch Greenstar 25i Combi Boiler is perfect for smaller properties like flats, bungalows and small houses. Its dimensions (height x width x depth in millimetres) are 710 x 400 x 330. It comes with easy-to-use control options and is also Wave compatible. It has an output of 25kW. It also comes with a simple compensation option and a homeowner service reminder.

But why this boiler in particular? Well, the boiler’s newest features have been designed based on user feedback, which means it has been approved and improved by customers. Newer features include higher hot water flow rates, increased output and a user-friendly control panel. The boiler provides instantaneous hot water and has a simple control panel with clearly displayed information. It has a low energy pump which reduces the amounts of electricity that it needs and has a zero risk of the condensate pipe freezing in severe cold weather.

It is a direct replacement of an award winning, well established boiler (Greenstar Junior), which has been installed in over a million homes across the UK, which proves just how many plumbers and customers alike are happy to rely on it. It has also won the Which? Best buy award for 7 years running. To top that, due to its efficiency it is environmentally friendly, and it can be easily serviced as all components can be accessed from the front.

It comes with a 5 year guarantee but as we’re approved Worcester Bosch accredited installers we can offer up to a 10 year guarantee.

Features:

  •         Warranty: 5 years
  •         Flowrate (l/m): 10.2
  •         ErP Space Heating Rating: A
  •         ErP Water Heating Rating: A
  •         Output (k/W): 25
Worcester Bosch Greenstar Range of Boilers Installers London & Kent

Worcester Bosch Greenstar Range of Boilers

  1.       Ideal Logic+ 24 Combi Boiler

The Ideal Logic+ 24 Combi Boiler has a small and compact style and can fit into a standard kitchen cupboard. It has a sleek and even aesthetically pleasing design making it less of an eyesore for your customers. Its dimensions (height x width x depth in millimetres) are 700 x 395 x 278. It comes with a user-friendly, easy to use fully back lit LCD display control panel so that it can be operated by anyone easily. It has an output of 24.2kW. It also comes with a choice of optional timers and room thermostats.

But why choose this boiler? First off, due to its efficiency and Energy related Product (ErP) Directive compliance it is environmentally friendly, and cost effective as well. One of the boiler’s features is the in-built frost protection of the pipes, meaning there is less chance of it breaking down from the cold. Newer features include enhanced remote capability for flexibility as well as product styling. On top of that, due to it has been given as SEDBUK band ‘A’ fuel efficiency rating and is Energy Saving Trust endorsed. It has also been recognised by Quiet Mark from the Noise Abatement Society – only the second UK boiler manufacturer to achieve this award.

It also comes with a 7 year parts and labour guarantee warranty and a 10 year warranty on the heat exchanger.

Features:

  •         Warranty: 7 years
  •         Flowrate (l/m): 9.9
  •         ErP Space Heating Rating: A
  •         ErP Water Heating Rating: A
  •         Output (k/W): 24.2
Boiler Installation Dartford Kent

MultiPlumb Installing an Ideal Logic+ Combi Boiler

Best Combi Boiler for 2-3 Bedroom Flat or House with 1-2 Bathrooms:

  1.       Worcester Bosch Greenstar 34CDi Combi Boiler:

The Worcester Bosch Greenstar 34CDi Combi Boiler is known for efficiency and reliability and is suitable for homes with one or two bathrooms. It has a low energy pump which reduces the use of electricity which makes it more cost efficient. Its dimensions (height x width x depth in millimetres) are 760 x 440 x 360. On top of this, it is Wave compatible and comes with a wide variety of easy-to-use control options. It has an output of 30kw. It has the highest hot water flow rate of the ‘Greenstar’ combi wall mounted range.

So, what’s so special about this boiler? For starters, the wide variety of easy-to-use control options not only allow the user to control what comfort level they want, but also how much they want to spend on their heating. It has also won the Which? Best buy award, showing its popularity and high quality. To top that, it has in-built frost protection making it more durable and therefore also suitable for garages or lofts.

It comes with a 5 year guarantee but as we’re approved Worcester Bosch accredited installers we can offer up to a 10 year guarantee.

Features:

  •         Warranty: 5 years
  •         Flowrate (l/m): 14.4
  •         ErP Space Heating Rating: A
  •         ErP Water Heating Rating: A
  •         Output (k/W): 34

 

Worcester Bosch Greenstar 32CDi Compact Boiler:

Despite its compact size, the Worcester Bosch Greenstar 32cdi Compact Combi Boiler has a high output, making it suitable for homes with one or two bathrooms. It uses a low energy pump and therefore reduces the use of electricity, which in turn makes it more cost efficient to run. Its dimensions (height x width x depth in millimetres) are 690 x 390 x 280. On top of this it is Wave compatible and comes with a wide variety of easy-to-use control options. It has an output of 24kW.

But why this boiler particularly? Well, it is also suitable for garages and lofts as it has in-built frost protection making it more durable. The compact style can fit into a standard kitchen cupboard which means it is very space efficient and gives you more choice of where it can be installed. It has simple boiler control knobs and very clearly displays the temperature. The user can choose the level of comfort they want with the variety of control options, as well as how cost efficient they want to be as customers have more control of where their money is going. When installed with a Wave smart internet connected control it achieves an A+ ErP package efficiency rating for heating.

It comes with a 5 year guarantee but as we’re approved Worcester Bosch accredited installers we can offer up to a 10 year guarantee.

Features:

  •         Warranty: 5 years
  •         Flowrate (l/m): 13.1
  •         ErP Space Heating Rating: A
  •         ErP Water Heating Rating: A
  •         Output (k/W): 32
Worcester Gas Combi Diagram

Combi Boiler Diagram

Best Combi Boiler for a 4+ bedroom House with 2+ Bathrooms:

Worcester Bosch Greenstar 38CDi Boiler:

The Worcester Bosch Greenstar 38CDi Combi Boiler is known for being easy to install, and its advanced features. Its dimensions (height x width x depth in millimetres) are 760 x 440 x 360. It comes with easy-to-use control options and is also Wave compatible. It has an output of 38kW so is suitable for large houses.

But why this boiler in particular? To begin, because of its efficiency and full ErP compliance, it is environmentally friendly, and cost efficient too. Newer features include engineer menus to improve support, a user-friendly control panel and an in-built Keyless Filling Link to make system re-pressurisation easier. The pump has also been upgraded to make it even more energy efficient. It has also won the Which? Best buy award.

It comes with a 5 year guarantee but as we’re approved Worcester Bosch accredited installers we can offer up to a 10 year guarantee.

Features:

  •         Warranty: 5 years
  •         Flowrate (l/m): 16.4
  •         ErP Space Heating Rating: A
  •         ErP Water Heating Rating: A
  •         Output (k/W): 38

 

Worcester Bosch Greenstar 42CDi Classic Combi Boiler:

The Worcester Bosch Greenstar 42CDi Classic Combi Boiler is also known for being easy to install, and future-proof technology (for example being able to range-rate the CH output to match the home’s requirement exactly). Its dimensions (height x width x depth in millimetres) are 760 x 440 x 360.It is also Wave compatible and comes with user-friendly control options. It has an output of 42kW. Plus, it has the highest hot water flow rate of the ‘Greenstar’ combi wall mounted range.

But why go for this boiler? Firstly, it is fully ErP compliant and is therefore efficient, it is environmentally friendly, and cost efficient for too. It has simple boiler controls with a clear temperature display. Newer features include engineer menus to improve support, a user-friendly control panel and an in-built Keyless Filling Link to make system re-pressurisation easier, like the 38CDi model. The pump has also been upgraded to be more energy efficient. Like other models in the Greenstar range, it has also won the Which? Best buy award.

It comes with a 5 year guarantee but as we’re approved Worcester Bosch accredited installers we can offer up to a 10 year guarantee.

Features:

  •         Warranty: 5 years
  •         Flowrate (l/m): 17.1
  •         ErP Space Heating Rating: A
  •         ErP Water Heating Rating: A
  •         Output (k/W): 42

 

So, there you have it,  my list of the best combi-boilers of 2018. No matter what kind of house, flat or bungalow you live in, always choose the boiler based on your budget and requirements. A lot of customers that I speak to just want the biggest and best boiler but it’s important to keep in mind that there are many factors to consider when choosing the right boiler for your home. The size of the property will play a large role in the price of the boiler if you want to make sure the boiler will heat the whole place up! The number of people living in the household and how many bathrooms will also play a role. Always get a qualified plumber to come and check which boiler would be best for your household. You can explain your needs and requirements and they can calculate what boiler would be best for you.

Thanks to our reputation as the top plumbing company in South East London and Kent we have been accredited as Gold Installers by the Worcester Bosch Group. This means that all of our Worcester Bosch boiler installations are covered by at least an 8 year guarantee with the option to extend to a 10 year guarantee.

7,8,9 or 10 Year Extended Guarantee on Worcester Bosch Boiler Installations

7,8,9 or 10 Year Extended Guarantee on Worcester Bosch Boiler Installations

Use this information as a guideline only but like I mentioned in the beginning of this blog, always consult an experienced, qualified Gas Safe Registered plumber to help you choose the right boiler system for your home. It is not as simple as it sounds so leave it to us professionals!

If you liked this blog post and found it useful I’d be grateful if you could help by sharing it with your friends and family on Twitter or Facebook.

If you have any questions, feel to free to comment down below and I’ll answer them personally.

If you live in South East London or Kent and need some advice in terms of what combi boiler to choose for your home then feel free to get in touch. We’d love to hear from you.

We are Gas Safe Registered and install boilers in South East London and Kent so give us a call for a free quote.

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Richard Costello, from Dartford in Kent, is the owner of MultiPlumb and has been involved in the plumbing industry installing bathrooms and boiler systems for over 15 years. If you have any questions or suggestions for future blog posts feel to get in touch at richard@multiplumb.co.uk.

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