In this guide, we will be giving you an explanation of ALL Worcester Bosch gas System boilers. We will include a general description of each boiler and give you the key specifications on each so you get an understanding of each boiler’s performance.
If you’re looking for a guide to Worcester Bosch Gas Combi Boilers or Worcester Bosch Regular Gas Boilers then we’ve created a guide for those too. If you aren’t sure what type of boiler you currently have then you can read our ‘Boiler types explained’ article, which breaks it down in a non-jargon kind of way.
Worcester Bosch is a boiler brand that has become synonymous with reliability and performance, a brand regularly recognised by Which? Awards. In the 2020 Boiler Brands report carried out by Which?, Worcester Bosch scored brilliantly once again, being awarded Which? Best Buys across its entire Greenstar gas and oil boiler ranges. Worcester Bosch performed exceptionally for reliability and customer satisfaction.
Worcester has built an enviable reputation for customer aftercare, which is reflected in their 4.6/5 average boiler review score on Trustpilot. Customers are obviously happy with the product and the customer care they receive.
A telling quote from the company’s founder Mr. Robert Bosch (1861-1942), still informs how the company operates today:
“I have always acted according to the principle that I would rather lose money than trust. The integrity of my promises, the belief in the value of my products and in my given word have always had higher priority to me than a transitory profit.”
How many companies in modern society can say they hold themselves to the same principles Mr. Bosch did?
It wasn’t until 1992 that the Bosch Group joined forces with Worcester to become Worcester Bosch. Not many companies have such a rich history as that of the Bosch Group & Worcester.
Now that we know a bit about the background of Worcester Bosch, list the Worcester Bosch system boiler models, let’s dive in and see what their products deliver. You can click on a boiler model below to go straight to that particular system boiler or browse at your leisure.
Worcester Bosch Greenstar 8000 Life system boiler
The Worcester Bosch Greenstar 8000 Life system boiler is also available as a combi boiler. The Life & Style boilers were released in 2018 to standing ovations throughout the land as people wept to finally behold a boiler that wouldn’t ruin their kitchen aesthetic.
If anything, the Worcester 8000 Life adds a little something. Worcester listened to customer feedback gained from their engineers and created something that Apple would be proud of, with a stylish gloss exterior and intuitive LCD display.
Known as ‘The Beautiful Beast’, it certainly delivers on the beautiful part (as far as boilers go), but what about the beast part? Do the boiler specs live up to the name?
We won’t make you wait for too long… yes! It does deliver on the beast part of its name. It is one of the most powerful wall-hung boilers on the market. It’s incredibly efficient and extremely powerful.
- Most powerful wall hung Worcester Bosch boiler
- Updated controls that are easier to read and to use
- Intelligent Filling System to maintain optimum pressure
- Compatible with wireless controls
- Runs quietly
- Outstanding build quality from a trusted manufacturer
- Looks beautiful mounted on your wall
The 8000 Life system boiler is available in a 30 and 35kW option, which is suitable coverage for medium to large-sized homes.
Obviously having a great-looking boiler doesn’t mean much if it isn’t reliable and although it’s early in the boiler’s ‘Lifespan’, it looks like it will offer the reliability that’s come to be expected of the Worcester Bosch brand. It comes with a 10-year guarantee as standard, so Worcester feels that it’s reliable enough to back for a decent length.
The Life has been designed to fit in place of a kitchen cupboard so that it can be seen, but with its quiet running technology, it shouldn’t be heard (much). So if your boiler is on display then this is definitely the boiler for you.
Key Stats
Dimensions (mm): Height: 780mm | Width: 440mm | Depth: 365mm
kW Outputs: Available in 30kW & 35kW outputs
ErP Rating: A Heat | A Water
Warranty: Up to 12 Years
Energy Efficiency: 94% – A Rated
Boiler Prices:
Below is a table showing the average boiler price, installation cost and overall price of a Worcester Bosch Greenstar 8000 Life 30kW. Boiler prices are taken from Boiler Guide.
| Typical Price (inc VAT) | £1,236 |
| Typical installation Cost (inc VAT) | £500 – £1,000 |
| Total Cost | £2,036 – £2,536 |
Worcester Bosch Greenstar 8000 Style system boiler
If you thought the Worcester Bosch Life was the best in the business, you were almost right, but there was a prophesied boiler, the one boiler to rule them all, and it was none other than the Worcester Bosch Greenstar 8000 Style system boiler.
The Style offers everything the Life does and then a little bit extra because this boiler is a little bit extra. In fact, it’s the most powerful wall-hung boiler on the market.
It’s available in a high-gloss white or black finish and it features a full colour touchscreen display, making it easier to see and it offers full explanations of any errors without the need to decode the error message in some archaic handbook that once upon a time might have been taped to the boiler.
- Design-led approach makes it the best looking boiler on the market
- Highest hot water flow rates available
- Intelligent Filling System can regain the correct pressure if it drops for any reason
- Full colour display
- Compatible with wireless controls
- One of Worcester’s quietest boilers
The Life, by comparison, is only available in white and doesn’t have a full-colour screen, it also doesn’t offer the same flow rates that the Style does.
Key Stats
Dimensions (mm): Height: 780mm | Width: 440mm | Depth: 365mm
kW Outputs: Available in 30kW & 35kW outputs
ErP Rating: A Heat | A Water
Warranty: Up to 12 Years
Energy Efficiency: 94% – A Rated
Boiler Prices:
The table below shows the average boiler price for the Worcester Bosch 8000 Style 30kW. Boiler prices are taken from Boiler Guide.
| Typical Price (inc VAT) | £1,317 |
| Typical installation Cost (inc VAT) | £500 – £1,000 |
| Total Cost | £2,117 – £2,617 |
Worcester Bosch Greenstar I system boiler
The Worcester Bosch Greenstar I system boiler range is the staple of the system boiler range from Worcester. Offering kW choices of 9, 12, 15, 18, 21, 27 & 30 to help the nation with their 3 times table, or maybe to cover homes of all sizes, the Greenstar i range will have a boiler to suit your home.
The whole range is incredibly energy-efficient with the 9 & 12kW options scoring an impressive 92% energy-efficiency score and other kW sizes in the range coming in at 94%. The higher the energy efficiency the better for the environment and the lower your heating bills will be – a double win.
- Simple boiler controls with clear information display
- Suitable for homes where the heating system includes a hot water storage cylinder
- Choice of controls enables greater comfort and economy
- Can be used with Greenskies solar panels for energy and cost savings
- Low energy pump reduces electrical usage
- Large Condensesure style siphon built into the boiler – eliminates frost risk
The i range of system boilers has stood the test of time and proved themselves to be reliable and cost-effective system boiler choices. With the range available there is one to suit every home.
Key Stats
Dimensions (mm): Height: 710mm | Width: 400mm | Depth: 330mm
kW Outputs: Available in 9, 12, 15, 18, 21, 24, 27 & 30kW outputs
ErP Rating: A Heat | A Water
Warranty: Up to 8 Years
Energy Efficiency: 92-94% – A Rated
Boiler Prices:
The Worcester Bosch Greenstar i system boiler is mid-range when comparing boiler prices. Below is the average boiler price for the Worcester Bosch Greenstar 30i, taken from Boiler Guide.
| Typical Price (inc VAT) | £1,114 |
| Typical installation Cost (inc VAT) | £500 – £1,000 |
| Total Cost | £1,914 – £2,414 |
Worcester Bosch GB162 system boiler
The Worcester Bosch GB162 system boiler may not be beautiful but it is most certainly a beast. The range comes in 50, 65, 85, and 100kW models, making it suitable for large homes with high water demand and even commercial properties too.
It can be installed alone or as part of a multi-boiler cascade system.
- Extremely versatile and compact wall hung condensing boiler
- Available in outputs of 50kW, 65kW, 85kW and 100kW
- New intuitive design featuring ‘lift-off’ casing, overpressure in-line cascade flue kits, and much more
- Uses the award-winning ALU-Plus heat exchanger
- Integrates with solar thermal installations
You would only need a Worcester Bosch GB162 system boiler if you had a very high hot water and heating demand, most homes would not require anything near this power. However, if you hold a title like Duke or Baron, then there is a good chance this boiler might be the one for you.
Key Stats
Dimensions (mm): Height: 1030mm | Width: 520mm | Depth: 465mm
kW Outputs: Available in 50, 65, 85 & 100kW outputs
ErP Rating: A Heat | A Water
Warranty: 2 Years
Energy Efficiency: 93% – A Rated
Boiler Prices:
Due to its size, the Worcester Bosch GB162 50kW system boiler is significantly more expensive than other system boilers. Below is the typical boiler price for a Worcester Bosch GB162 50kW, taken from Boiler Guide.
| Typical Price (inc VAT) | £2,209 |
| Typical installation Cost (inc VAT) | £500 – £1,000 |
| Total Cost | £3,009 – £3,509 |
Worcester Bosch Greenstar CDi Classic system boiler (discontinued)
The Worcester Bosch Greenstar CDi Classic system boiler is no longer manufactured by Worcester as it has been replaced by slinkier models such as the Life and Style range, offering the same kW options in a nicer, more efficient package.
Key Stats
Dimensions (mm): Height: 760mm | Width: 440mm | Depth: 360mm
kW Outputs: Available in 30 & 35kW outputs
ErP Rating: A Heat | A Water
Warranty: 7 Years
Energy Efficiency: 92% – A Rated
*These prices are subject to change. These boiler prices are the current prices on Boiler Guide on the 14th May 2021.
