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Worcester Bosch Greenstar Danesmoor System Utility Boiler

The Worcester Bosch Greenstar Danesmoor System Utility is a floor-standing condensing oil-fired boiler that is suitable for kitchen, garage or utility room installation.

As its name suggests, the Greenstar Danesmoor System Utility is designed to blend in seamlessly with other appliances typically found in a utility room. By being a floor-standing oil-fired model, it’s also ideal for those who prefer to keep their boiler in a kitchen or garage. It comes in a range of outputs up to 32kW to suit homes of all sizes and has been hailed a Which? Best Buy winner year after year. If you live off the mains gas grid and are looking for a reliable and highly efficient boiler, this offering from Worcester Bosch could be the perfect model for your property.

How Much Does this Boiler Cost?

Like most boilers, the Worcester Bosch Greenstar Danesmoor System Utility is available in different central heating outputs, so the price will depend on whether you need the 18kW, 25kW or 32kW unit. Prices typically start at £1,700 and go up to £2,300, with the higher output option being at the top end of the cost scale. As you’ll also need to factor in the cost of installation, we recommend you shop around and get quotes on the boiler and the fitting work.

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

The Greenstar Danesmoor System Utility is a system boiler, meaning it will need a separate cylinder for storing hot water. Most people with a system boiler keep the cylinder in their airing cupboard. System boilers are most suited to homes with multiple bathrooms and greater demands because they allow you to run as many taps as you like simultaneously. This is where system boilers win over combi boilers, as combination boilers do not cope well with two showers or baths running at the exact same time. Also, system boilers don’t require tanks in the loft, making them perfect for properties without any loft space.

Worcester Bosch’s Greenstar Danesmoor System Utility isn’t just designed for large homes, though. This boiler is available in three heat outputs to appeal to small and medium-sized properties too. You must select the right output to ensure the boiler can provide your home with sufficient heat and hot water without increasing your fuel bills. To find out the correct oil boiler output (size) for your property, always seek advice from an OFTEC registered engineer.

Is it a High Efficiency Boiler?

Yes. All Worcester Bosch oil-fired boilers are A-rated for energy efficiency and help to reduce fuel consumption. The Greenstar Danesmoor System Utility also happens to be solar compatible. You can use it with a Greenstore hot water cylinder (available in sizes from 150 to 300 litres) which work with Greenskies solar panels to heat your water. When you choose to have these additional items installed with the boiler, your energy bills can be reduced by up to 60% and your carbon footprint will be even lower.

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

Worcester Bosch’s Greenstar Danesmoor System Utility comes with concealed user controls to prevent dials and buttons from being knocked or touched by young children when the boiler is installed in a kitchen or utility room. It’s also supplied with a cross firing burner and one-piece primary baffle, both of which are effortless to remove to ensure servicing is quick and easy. Plus, the boiler is Bosch EasyControl compatible. With the EasyControl, you can check your energy use and tailor your heating and hot water times from a smartphone or tablet to ensure your home is always warm and comfortable whenever you need it to be.

How long is the Warranty on this Boiler?

The Greenstar Danesmoor System Utility is backed by a 2-year parts and labour warranty as standard. However, it’s worth heading over to the Worcester Bosch website as the brand sometimes has a promotion on extended warranties for its range of oil boilers.

Greenstar Danesmoor System Utility Boiler By Size and Price

ModelTypeDimensionsMaximum Flow RateOutputEfficiency RatingTypical Price
Greenstar Danesmoor System Utility Boiler 18SystemH – 855 mm
W – 370 mm
D – 600 mm
N/A18 kWA 90% and above£1700
Greenstar Danesmoor System Utility Boiler 25SystemH – 855 mm
W – 370 mm
D – 60 mm
N/A25 kWA 90% and above£2000
Greenstar Danesmoor System Utility Boiler 32SystemH – 855 mm
W – 370 mm
D – 600 mm
N/A32 kWA 90% and above£2300

Summary of Important Information

  • Priced between £1,700 and go up to £2,300
  • Heating output of 18kW, 25kW or 32kW
  • Dimensions of 855mm (H) x 370mm (W) x 600mm (D)
  • Uses oil as its fuel source
  • A-rated for efficiency
  • Solar compatible
  • Smart compatible
  • 2-year warranty as standard

Pros and Cons

Below, you can find out the pros and cons of the Worcester Bosch Greenstar Danesmoor System Utility to help you decide if it’s the right boiler for your home.


  • Awarded Which? Best Buy with a score of 87%
  • Can be installed in a kitchen, garage or utility room
  • Suited to small, medium and large homes without a mains gas supply
  • Extremely quiet in operation
  • Provides maximum energy efficiency – reduce fuel bills and carbon emissions
  • Compatible with solar thermal – additional savings
  • Compatible with Bosch EasyControl – can tailor hot water times and heating temperatures from your smartphone or tablet, even when you’re not at home
  • 5-year guarantee on the primary heat exchanger
  • 10-year guarantee on the plate heat exchanger


  • Requires separate cylinder
  • User controls are basic
  • 2-year warranty – would prefer a longer standard guarantee
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