Worcester Bosch 8000 35kW Life Combi Boiler

Worcester Greenstar 8000 Life 35kW Combi Boiler

Price: £1,929.00

The Worcester Bosch Greenstar 8000 Life 35kW gas and LPG combi boiler has a simple aesthetic and a great reputation for performance and efficiency.

It’s a sought-after choice for those looking to upgrade their heating system. We have taken a look at the Worcester Bosch Greenstar 8000 Life 35kW boiler in detail below.

Heat output: 35kW
20% Hydrogen-mix Ready
Aluminium Silicon Heat Exchanger

(Boiler-only price: comparing five or more suppliers, including Screwfix and Plumbase. Correct February 2024).

Key Features

The Worcester Bosch 8000 Life 35kW combi boiler is an understated wall-mounted boiler. It is 94% efficient condensing boiler.

Key Features

Compact size – install in a kitchen cupboard
Modulation of 1:10
94%
A-rated efficiency
12-year warranty (5-year standard extendable to 12-years.)
Great for larger homes with two bathrooms
Easy to use controls and simple display

Size and Installation

35kW Gas & LPG condensing boiler (LPG version available)
Dimensions – 780 mm high, 440 mm wide and 365 mm deep
Quiet operation means it doesn’t need to be in a cupboard

Control

Front-mounted screen and controls
User-friendly

Environmentally Friendly

Low CO2 emissions for reduced environmental impact
20% hydrogen blend ready
1:10 modulation enables efficient running at 10% of maximum power

More Information

More About The Worcester Greenstar 8000 Life 35kW

The Worcester Bosch Greenstar 8000 Life 35kW is perfect for medium to large homes. The power outputs range from 30kW to 50kW. There are options for many properties because there is a range of powers.

Worcester Bosch has a very good reputation in the UK and is the largest manufacturer of boilers. They are assembled in Worcester.

Price

Starting at £1,929 (average price from five plumbers merchants in February 2024), the Greenstar 8000 Life isn’t cheap. It’s also more expensive than some competitor models of similar of better specification.

The 8000 Life is slightly cheaper than it’s 8000 Style bigger brother. Also, the Greenstar 4000 combi boiler range is one of Worcester’s best-selling models.

Efficiency

Able to hit 94% efficiency and achieve an A rating for heating and hot water, the Greenstar 8000 Life range is an efficient boiler. It will help you save money, especially if upgrading from an older non-condensing boiler. It can also modulate at 1:10, meaning that when full power isn’t required, it can use a 10th of normal full power.

Aluminium heat exchanger

The Worcester Bosch Greenstar 8000 Life comes equipped with an aluminium heat exchanger. As discussed in this guide, aluminium is a good material but not as good as stainless steel. Aluminium tends to corrode more quickly and loses 10% efficiency over 10 years. This equates to money spent on gas or LPG.

The 8000 has up to 12 years of warranty coverage. But, there will be strict conditions. And if it breaks down outside the 12 years, the cost to replace parts will be high.

The 12-year warranty is only offered when installed by a Worcester Bosch-trained heating engineer and with specific hardware such as Worcester filters.

Equipped with innovative technology and optimised heat and hot water output

The Worcester Greenstar 8000 Life 35kW is designed and built to run as quietly as possible. This means it can be installed in many places without disruption.

This boiler also has an easy-to-use display and front-mounted buttons. These controls are easy to use and very intuitive.

Control your boiler remotely

Worcester Bosch’s EasyControl system allows heating control from your phone. From anywhere in the world. As you have better control, you can overrule the standard heating schedule if you’re not home. This means not wasting energy.

The Greenstar 8000 Life range is also available in system and regular boiler types. Each version also has an LPG variant.

Boilerhut Review

Our Thoughts

Written by Bernard Morgan (Engineer). Published: February 20, 2024. Updated: March 27, 2026

The Greenstar 8000 Life 35kW combi boiler is a great boiler. It’s a popular choice as it is one of their top-of-the-line boilers (apart from their 8000 Style model). It comes in a range of powers, is compact, and has a modern design. This is a good boiler. If looked after properly, it can easily last 12 or more years.

However, as with all Worcester Bosch boilers, the 8000 Life 35kW has an aluminium heat exchanger. This means we don’t often recommend them to customers. The reason for this is that even if the boiler is looked after properly, it can still lose 10% efficiency over 10 years.

This is money spent on gas bills. Money that is increasing every year due to efficiency loss. You can read more about this here >

Performance 8/10

At 94% efficiency, this boiler will save people money when upgrading from older boilers. However, as already discussed, this won’t last, and aluminium exchangers can lose 10% efficiency over 10 years.

Quality 8/10

Worcester Bosch uses a mixture of brass, copper and plastic parts in their boilers. If well looked after, they should last. But we tend to recommend boilers with a wider range of premium components.

Value 7/10

The Worcester Bosch 8000 Life 35kW combi boiler is expensive. When compared to other brands’ models with similar features, there are better boilers for about the same or slightly less money. For example, the Viessmann 050-W or 100-W are both better boilers. Read our Worcester Bosch vs Viessmann guide >

Customer Satisfaction 9/10

Worcester Bosch is the largest manufacturer of boilers in the UK. They have hundreds of thousands if not millions, of boilers in homes nationwide. They are an excellent boiler brand. The problem, from our point of view, is cheaper internal parts. If well looked after, they are great. But they will lose efficiency over time.

Specification

Manufacturer	Worcester Bosch
Model	GREENSTAR 8000 Life 35kW
Condensing	Yes
Efficiency Rating	94%
Energy Efficiency Class	A Rated
Modulation Range	1:10
LPG Version	Yes
Warranty	Up to 12-year comprehensive warranty
Hot Water Output	35kW
Combi Hot Water Flow Rate	13 litres/minute at 40°C
Central Heating Output	3.5 – 35kW
Mounting	Wall Mounted
Colour	White
Noise Level	53dB
Weight	59kg
Dimensions – Height	780mm
Dimensions – Width	440mm
Dimensions – Depth	365mm

What’s Included

If you need a new or replacement boiler or are looking at having a central heating system installed, get an online quote (it takes less than 1 minute), and you’ll get an instant price. But why choose Boilerhut:

Prices include everything to ensure the ongoing efficiency and longevity of your new boiler (flushing, filters, labour, and VAT etc).
Manufacturer-trained installers for full warranty on completion
Next day boiler installation. Quick central heating system installation.
‘Excellent’ 5* customer satisfaction on Trustpilot.
Finance options available for central heating or boiler installation.
10 to 12-year warranty on boilers.
Fixed prices. No hidden extras.
Get up to three quotes for different-tier boilers.
Instant, no-obligation quote in less than 1 minute.

Worcester Greenstar 8000 Life 35kW Combi Boiler

Price: £1,929.00

Key Features

Size and Installation

Control

Environmentally Friendly

More About The Worcester Greenstar 8000 Life 35kW

Our Thoughts

Performance 8/10

Quality 8/10

Value 7/10

Customer Satisfaction 9/10

Support

Further reading and more information

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