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  • worcester bosch boiler reviews

    Updated: March 21, 2024

    Welcome to the Worcester Bosch Combi Boilers Review page.

    Here you’ll find lots of information about the Worcester Bosch Combi Boilers.

    One of the UK’s most well-known and trusted boiler manufacturers, Worcester-Bosch remains a favourite among professional Boiler installers and heating engineers.

    In a recent Let’s Heat’s article, they were voted the best Condensing Combi Boilers!

    Worcester Bosch range of combi boilers: 

    • Greenstar 2000  
    • Greenstar 4000  
    • Greenstar 8000 Style  
    • Greenstar 8000 Life  
    • Greenstar CDi Compact  
    • Greenstar CDi Highflow  
    • Greenstar Si Compact  
    • Greenstar Heatslave II (oil boiler) 

    Read more :Best Combi Boilers To Buy (Review) In UK

    Why did Let’s Heat think Worcester-Bosch deserved the number one spot?

    • Which? Best Buy Award for 10-years running
    • 10-year guarantee
    • Availability of parts is second to none
    • Excellent customer reviews & aftercare
    • High-efficiency A-rated combi boilers

    Model: Worcester-Bosch Greenstar i

    The Worcester-Bosch Greenstar i is officially Worcester’s best selling combi boiler range having sold and installed more than 1 million of them in the UK alone.

    Suitable for small to medium-sized homes on a budget the Greenstar i is the brand’s entry level offering and the range includes the 30i i.e. 30kW and the less powerful Greenstar 25i at 25kW.

    Although not the brand’s best offering, it still boasts some great features, not least of which is an A-rating for efficiency, a user-friendly digital display and a reassuring ‘Which?’ Best Buy Award.

    Read also : Best Combi Boilers & Brands

    Model: Greenstar CDi Compact Boiler

    The CDi Compact is Worcester Bosch’s compact boiler, designed to be the ideal size to fit into small spaces, such as kitchen cupboards.

    Available with multiple power outputs including 28kW, 32kW and 36kW, this combi boiler can still provide heating and hot water for properties with varying demands but offers the dimensions required to save as much space as possible.

    Model: Worcester Bosch 2000

    The Worcester-Bosch 2000 is the brand’s latest entry-level offering and officially the brands quietest ever boiler.

    Its compact design makes it suitable for installation within small spaces such as kitchen cupboards and is available within 25kW or 30kW it has enough power for flats and small homes.

    Boasting A-rating efficiency, a user-friendly digital display and a reassuring Which? Best Buy Award and a contemporary and stylish case, it’s a superb option for small property dwellers on a budget.

    Model: Worcester Bosch 8000 Style

    The Worcester-Bosch 8000 offers the same contemporary design and feel as it’s cheaper brother, the 2000 but with cutting edge features and superior power outputs, it is ideal for larger homes with more than one bathroom.

    It’s the most powerful and connected wall-hung boiler to date, capable of delivering up to 50kW’s, and with optional smart technology that will top up the boiler for you when low pressure is detected.

    The Greenstar 4000 Combi and System boiler


    The price for the Greenstar 4000 ranges between £975 – £1,200. As for the installation cost it is between £500 to £1,000, depending on different factors.

    This is one of the best and most powerful Worcester Bosch boilers. It has also won the Which? Best Buy award in 2022. With this model you will get a number of benefits.

    The Greenstar 4000 is available as both a system and a combi boiler. It is suitable for most types of homes.

    What is meant by a Condensing Boilers?

    The terms condensing and non-condensing can be confusing to people shopping for a new boiler.

    Presently, it is stated by law that new boilers must use condensing technology. In short, you don’t have to worry about getting a condensing boiler.

    Condensing is not a type of boiler, but rather technical feature. In a Condensing boiler you get a much bigger heat exchanger. They also produce additional heat from the fuel. The same fuel that would have been wasted in a non- Condensing boiler. As a result, they are more efficient.

    non-condensing boilers are less efficient by 50% since a lot of heat was lost in the combustion exhaust gases. On the other hand, new boilers would capture this heat and use it to heat water.

    condensing boilers are energy efficient by 90%. They use excess energy to heat your property. Not to mention, they are environmentally friendly and reduce your heating bill.

    What is the output range for Worcester Bosch combi boilers?

    Combi boilers are perfect for small or medium sized homes. They are compact and do not require plenty of space. They can supply hot water for up to two bathrooms. It is important to make sure that your combi boiler is the right output size for your home.

    In order to calculate the right output size you need to put in mind the number of radiators you have in your home. For each radiator, you will need 1.5 – 2kW of power.

    The Greenstar 4000 combi boiler has an output of 25 – 30 kW and can support up to 15 radiators.
    The Greenstar 8000 combi boiler has an output of 30 – 50kW and can support up to 25 radiators.

    Read also : Viessmann System Boiler Review

    Want a quote for a Worcester-Bosch Boiler & Installation?

    With us here at Let’s Heat you can get an online quote now to see how much we can install it for: Get Quote Now!

    And please remember that whoever you use to install your boiler, please ensure that they are gas safe registered, as we are and that they have a great review score for their workmanship see our 4.9 Trustmark rating here!

    Finance for your combi boiler…

    Buying a new boiler and having a boiler installation or a heat pump, is an investment.

    However, it can be expensive, especially paying for it all in one hit.

    If you haven’t got the money on hand for the boiler and installation services that you require, you can get the job done on a finance package that is FCA-approved.

    We can also offer a number of split payment options for you to consider.

    Read more : Best Condensing Boilers – Smart Adapt

    Boiler Replacement Payment Options

    For new boiler installation, you can pay by card, pay zero deposit, and pay monthly over 2 to 10-years or take our a finance package.

    How long can a Worcester Bosch boiler last? 

    Although we cannot state for sure how long a boiler can last, Worcester Bosch boilers can last as long as 10-15 years, given that they are well-maintained and serviced annually.  

    What temperature should a Worcester boiler be set at?

    For combi models, the hot water temperature can be set to between approx. 40˚C and 60˚C using the temperature control . 

    What are the different types of Worcester Bosch boilers?

    At Worcester Bosch manufactures Combination (Combi) boilers, System boilers and Regular boilers. All three types vary and are suited for different homes and living situations.

    How often a Worcester Bosch boiler needs to be serviced?

    It is recommended that you service your Bosch boiler yearly to help ensure that your boiler is running as efficiently and safely as possible.