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Last updated: 10th April, 2024


Worcester Bosch Greenstar 8000 Life (Combi) Boiler Review

Worcester Bosch Greenstar 8000 Life (Combi) Boiler Review

Key takeaways

  • Worcester Bosch have been manufacturing premium boilers since 1962 and have now become synonymous with efficiency.
  • The Greenstar 8000 Life combi is the latest in a long line of award winning and eco friendly Greenstar boilers.
  • New combis have many benefits including the fact they're very spatially economic.

Thinking of buying a Worcester Bosch Greenstar 8000 Life Boiler? Find out iHeat's opinion on the boiler below.

Worcester Bosch Boilers

Here’s some info on the manufacturer Worcester Bosch to warm you up for the review…

A reputed boiler brand since 1962, Worcester Bosch is synonymous with customer satisfaction, blending high end technology with assured traditional engineering. With no less than eleven Which? Best Buy awards, Worcester Bosch continues to demonstrate the excellence in production and service that has made the brand an industry leader for over 50 years.

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Worcester Bosch Greenstar 8000 Life

The Worcester Bosch Greenstar 8000 Life has been created to follow the form of the extremely popular original Greenstar branch of the Worcester Bosch range. Combining the latest in heating design and energy efficient application, the Greenstar hallmark represents a modern icon of the boiler industry.

Greenstar 8000 Life Technical Specifications 

Efficiency Rating


Energy Efficiency Class

A Rated

LPG Compatible



Wall mounted


62 kg


780mm (Height) x 440 (Width) x 365mm (Depth)

The Greenstar 8000 Life combi comes in a wide range of power outputs with corresponding flow rates .

kW power outage

Flow rate l/minute









With versatile power and flow rate options, the Greenstar 8000 Life can produce a generous enough stream to cope with significant hot water demand and central heating output.

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Key Features Of The Greenstar 8000 Life

  • The Greenstar 8000 Life is a direct replacement for the previous Worcester bosch boiler favourite, the Greenstar CDi compact. The Greenstar 8000 Life boasts an even more impressive 94% ErP efficiency rating. A better energy efficiency helps reduce carbon emissions as well as lower heating bills.

  • As a particularly powerful combi boiler the Greenstar 8000 Life, especially in the 40 and 45 kW capacities can cope with the water demands of multiple bathrooms.

  • The Greenstar 8000 Life is compact enough to be a wall hung boiler and will easily fit in a kitchen cupboard.

  • Boasts the innovative Greenstar intelligent filling system which ensures the boiler  maintains optimum pressure.

  • Can be linked to the latest smart technology wireless controls, including the Bosch Easycontrol thermostat to allow quick and seamless boiler control and monitoring. The Bosch Easycontrol app can be synchronised with a new boiler, meaning mobile boiler use has never been so easy.

  • The Greenstar 8000 Life uses full colour display with advanced features.

How Much Does a Worcester Boiler Cost?

Combi Boilers

Benefits Of Combi Boilers

Although the Greenstar 8000 Life comes as a system boiler, the combi boiler versions are the most popular choice for a number of reasons. 

Unlike conventional boilers, combi (combination) boilers link a home’s central heating system and water heating; no separate hot water tank is needed which is cleaner as it avoids potential rust or debris build up. This allows a compact boiler which could fit into a standard kitchen or airing cupboard, or be wall mounted, to thoroughly heat a home without stealing lots of space. Combi systems are also easier to service or for boiler replacement due to their popularity, meaning greater availability.

Worcester Thermostat

How much Does A Worcester Bosch Greenstar 8000 Life Combi Boiler Cost?

The price of the Greenstar 8000 Life combi varies depending on power output size, prices including Gas Safe installation typically ranges from £2490-£2999. This premium price gets you a premium boiler that provides more power than most combis while still being able to save space. 

Here at iHeat, we offer the next day Gas Safe Installation and 10 year warranty on our boilers.

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Should You Buy A New Worcester Bosch Greenstar 8000 Life Boiler?

Overall the Greenstar 8000 Life Is a great choice for a new central heating and hot water system. A lightweight unit, that is both space saving and highly efficient, making it a perfect fusion of design and application. Providing a substantial heat output for this size boiler, these powerful combi boilers definitely provide a healthy cost value from a trusted UK brand. 

Get an instant free quote and fixed price on the Greenstar 8000 Life combi range today here at iHeat.

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Frequently Asked Questions

What is the Difference Between Worcester Greenstar 8000 Style and Life?

The Worcester Greenstar 8000 series includes two models: the Style and the Life. Both offer high efficiency and performance, but there are key differences:

  • Design: The Greenstar 8000 Style features a more modern, sleek design with a high gloss finish and is available in both white and black, making it a stylish addition to contemporary homes. The Life model has a more traditional boiler appearance but is still designed to be aesthetically pleasing.
  • Control Options: The Style model often comes with more advanced smart control options, allowing for easier integration with smart home systems.
  • Size and Installation Flexibility: The Style variant may offer more flexibility in terms of size and installation options, catering to a broader range of home sizes and customer needs.

Both models continue Worcester Bosch's reputation for reliability, but the choice between them may come down to aesthetic preference, the specific features desired, and installation requirements.

How Long Does a Worcester Greenstar Boiler Last?

A Worcester Greenstar boiler, with proper maintenance, can typically last between 15 to 20 years. Regular servicing is crucial to extend the lifespan of the boiler and ensure it operates efficiently throughout its life.

How Efficient is the Greenstar 8000 Life?

The Greenstar 8000 Life is highly efficient, achieving up to 94% efficiency with an ErP A rating for both heating and hot water. Its design incorporates the latest in boiler technology to maximize energy use and reduce wastage, making it one of the more energy-efficient models on the market.

Is the Greenstar 8000 a Good Boiler?

Yes, the Greenstar 8000 series, including both the Life and Style models, is considered an excellent boiler choice. Praised for its high efficiency, reliability, and innovative features, the 8000 series is suitable for a wide range of homes and heating requirements. It represents Worcester Bosch's commitment to quality and has received positive feedback from both installers and homeowners.

How Many Radiators Can a Worcester 8000 Run?

The number of radiators a Worcester 8000 can run depends on the specific model and its kW output. For example, models range from about 30 kW to 50 kW output. A rough estimate is that each kW can heat up to 1.5 radiators. Therefore, a 30 kW model could comfortably run up to 45 standard radiators. However, this is a rough estimation, and factors such as room size, insulation, and radiator size will affect the actual number.

Should I Install Worcester 8000 Life Gas Boiler?

Whether the Worcester 8000 Life gas boiler is suitable for you depends on your specific heating and hot water needs, the size of your property, and your energy efficiency goals. It's a high-end model known for its efficiency, reliability, and user-friendly features, making it a strong contender for many homes. Consulting with a heating professional can help determine if this model is the best fit for your situation.

Is Greenstar 8000 Life a Combi Boiler?

Yes, the Greenstar 8000 Life is available as a combi boiler, which provides both heating and hot water from a single unit without the need for a separate hot water tank. This makes it a convenient and efficient option for many homes, especially where space is at a premium. The series also includes system and regular boiler options to suit different heating and hot water requirements.

Stephen Day profile photo
Article by
Stephen Day | Co-founder
Gas Safe registered and FGAS certified engineer with over 20 years experience in the heating and cooling industry.