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Worcester Bosch Greenstar 8000 Style 30kW or 35kW System Boiler

Available in either black or white, the Greenstar 8000 Style System is part of Worcester Bosch’s most powerful wall-hung boiler range. 

Modern and stylish, the Worcester Bosch Greenstar 8000 Style System boiler is packed with innovative new features, can run on a 20% hydrogen blend, and will suit almost any heating requirement and home with a high demand for hot water. This top of the range system boiler is designed to deliver the highest levels of heating comfort and has been developed following many years of customer insight and installer feedback. 

How Much Does this Boiler Cost?

The Worcester Bosch Greenstar 8000 Style System boiler is available in two models with an output of 30kW or 35kW to suit your needs. You can expect to pay between £1,300 and £1,445 for this system boiler, including VAT but not installation. System boiler installation costs can vary, so we recommend getting quotes from local and national installers. Always ask for a fixed-price quote and only ever hire a Gas Safe registered engineer to carry out the installation work. 

How will I know if this Boiler is Suitable for My Home?

System boilers are perfect for most homes with two or more bathrooms because they store hot water in a separate cylinder. They don’t require any tanks in the loft, making this system boiler a good option for homes with limited loft space. The Worcester Bosch Greenstar 8000 Style System comes in a choice of outputs to match your heating requirements and is available in black or white to suit your home. 

You must choose the correct boiler size to ensure you enjoy a comfortable home and keep your fuel bills down. It’s always a good idea to contact a Gas Safe registered engineer to help you select the best boiler type and size for your needs and lifestyle.  

Is it a High Efficiency Boiler?

It is. The Worcester Bosch Greenstar 8000 Style System is an A-rated system boiler with an efficiency rating of 94%, so it should help lower your carbon footprint and energy bills. 

Does this Boiler have a Good Range of Controls and Features?

Yes. This highly efficient system boiler offers a colour touchscreen display and text menu to allow you to know the exact boiler status. The display panel even enables rapid diagnosis and fault-finding. It’s also compatible with a range of optional controls, including the Bosch EasyControl smart thermostat that connects to your smartphone and lets you tailor your heating times and hot water demand. Furthermore, the Worcester Bosch Greenstar 8000 Style System with easy access to all components should help you save money on servicing and maintenance. 

How long is the Warranty on this Boiler?

All Greenstar gas boilers come with a 5-year warranty as standard. However, Worcester Bosch offers an exclusive 12-year warranty to customers who opt for a Greenstar system filter and choose a Worcester Bosch Accredited Installer to install the Greenstar 8000 Style System. 

Summary of Important Information

  • Expect to pay between £1,300 and £1,445
  • Heating output of 30kW or 35kW
  • Dimensions of 780mm (H) x 440mm (W) x 365mm (D)
  • Uses gas as its fuel source
  • A-rated for efficiency
  • Smart compatible
  • 5-year warranty as standard

Pros and Cons

Worcester Bosch is a popular and reliable boiler brand loved by customers and installers across the UK. Check out the list of pros and cons of the Greenstar 8000 Style System boiler below. 

  • Awarded Which? Best Buy
  • Worcester Bosch has a Which? brand score of 84% – correct at the time of writing – January 2022
  • Suited to medium and large-sized homes with two or more bathrooms
  • Available in high gloss black or white 
  • Easy-to-use colour display panel
  • One of Worcester Bosch’s quietest boilers to date
  • No need for loft tanks
  • Compatible with Bosch EasyControl – can tailor hot water times and heating temperatures from your smartphone or tablet, even when you’re not at home
  • Provides maximum energy efficiency – reduce fuel bills and carbon emissions
  • Excellent rating on Trustpilot – correct at the time of writing – January 2022


  • Requires separate cylinder
  • 5-year warranty – but this can be extended to 12 years
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