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Worcester Bosch Greenstar Danesmoor External System 18/25 boiler

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  2. Worcester Bosch Greenstar Danesmoor External System 18/25
Plumbproud rating

76.26%

Worcester Bosch Greenstar Danesmoor External System 18/25 System Oil boiler

We scored this Worcester Bosch Greenstar Danesmoor External System 18/25 System boiler at 76.26% on our internal benchmarking system. To determine a score, we take into consideration a number of different factors including the boiler's energy efficiency, installed price, likely running costs, and the length of the manufacturer's warranty.

On a standard fit, we would expect this Worcester Bosch Greenstar Danesmoor External System 18/25 System boiler to cost you £3,500 supplied and fully installed by an experienced Gas Safe PlumbProud fitter.

Wondering if the Worcester Bosch Greenstar Danesmoor External System 18/25 is the right boiler for your home? Then speak to a professional here by getting in touch via email or call us on 01604 343053. You can also get a free quote by entering your postcode in the box on the page.


Installed price around

£3,500

GET A COMPETITIVE BOILER QUOTE

Please enter your postcode below to get a personalised quotation for the perfect boiler for your home

Worcester Bosch Greenstar Danesmoor External System 18/25 System Oil boiler frequently asked questions

Is the Worcester Bosch Greenstar Danesmoor External System 18/25 boiler a combi, regular or a system boiler?

If you are considering installing a system boiler in your house or flat, then the Worcester Bosch Greenstar Danesmoor External System 18/25 boiler is certainly worth investigating.

If you choose a system boiler, you'll have to find somewhere to install a hot water cylinder too - they're normally located in an airing or landing cupboard. However, unlike regular boilers, they do not require a cold water tank to be fitted in the attic, making them suitable for homes with limited or no roof space or if you're planning a loft conversion in the future.

System boilers distribute the hot water to your taps and radiators using (often built-in) circulation pumps and are easier to install from scratch since they have one less component (the water tank) to consider.

System boilers also require programming to produce heat and hot water, so they cannot produce this instantly. Nonetheless, the cylinder keeps water hot for use later, so you don't have to wait as long as you set your timer and keep it on long enough to heat enough water.

Is a Worcester Bosch Greenstar Danesmoor External System 18/25 system boiler right for my house or apartment?

You should make sure that the boiler you install in your property is the right "size". And size doesn't mean its physical dimensions, size means how much power it has - the "output".

Output measures in kilowatts how much power a boiler can use when heating water for your radiators or taps. The higher the output rate, the more water it can heat.

If the output rate is too low, your hot water might often be only lukewarm, and if it is too high, you will be paying more for your oil than you need to.

The Worcester Bosch Greenstar Danesmoor External System 18/25 system boiler has an output of 25 kW, so which types of property would it be most appropriate for?

An experienced PlumbProud heating engineer would recommend that the most suitable type of property for a Worcester Bosch Greenstar Danesmoor External System 18/25 system would be medium-sized homes and larger apartments containing 10-15 radiators and providing hot water for two bathrooms.


What is the size of the Worcester Bosch Greenstar Danesmoor External System 18/25?

The Worcester Bosch Greenstar Danesmoor External System 18/25 is 950 mm tall, 565 mm wide, and 780 mm deep.

The Worcester Bosch Greenstar Danesmoor External System 18/25 is an external floor-standing system boiler intended for placement outside the home. In addition to providing you with more indoor space and reducing noise, this makes it easier for a service technician to access it if something goes wrong. The chance of carbon monoxide leaking into your home is also greatly reduced.

Floor-standing external boilers are housed in a weatherproof covering allowing them to be placed outside your home with only a minimal risk of rusting. Using external boilers is also safer because there will be less chance of oil leaks in your home which can cause significant internal damage and leave you with an oily odour that is hard to remove.

Is the Worcester Bosch Greenstar Danesmoor External System 18/25 non-condensing or condensing?

The Worcester Bosch Greenstar Danesmoor External System 18/25 is a condensing oil boiler - we’d strongly recommend that you choose the very latest condensing model for your home.

Condensing boilers run on either gas or oil and are manufactured specifically to improve energy efficiency. They do this by capturing and recycling the warmth present in flue exhaust gases and water vapour condensation into more usable heat the system can use, meaning they're far more efficient and cost less to run.

Is choosing the Worcester Bosch Greenstar Danesmoor External System 18/25 system boiler environmentally friendly?

As the British public has become more conscious of climate change, many homeowners consider the environment when choosing how to heat their homes.

Central heating produces 14% of all greenhouse gas emissions in the UK. Gas boilers in the larger cities emit dangerous levels of nitrogen dioxide.

Will choosing a Worcester Bosch Greenstar Danesmoor External System 18/25 system boiler for your home be positive for the environment? Let's examine the figures.

Every boiler manufactured and supplied in the UK must have an energy efficiency rating of 92% (SEDBUK “A” rating). These minimums were made law in April 2018 - before that, the minimum energy efficiency rating was 88% (88%/89% = "B" SEDBUK grade, 90%+ = "A" SEDBUK grade).

The Worcester Bosch Greenstar Danesmoor External System 18/25 was awarded an efficiency rating of 90% and a band rating of "A".

Energy efficiency ratings for boilers describe the amount of energy they use and waste when switched on and working.

The Energy Related Products Directive (ERP) came into force in 2015. This legislation was introduced to encourage manufacturers to create more energy-efficient products and it covers all products that consume energy during their lifetimes, including energy used during production and at the point of disposal.

The ERP assessors assigned a rating of "A" when testing the Worcester Bosch Greenstar Danesmoor External System 18/25.

How long is the warranty offered by the manufacturer for the Worcester Bosch Greenstar Danesmoor External System 18/25 boiler?

The Worcester Bosch Greenstar Danesmoor External System 18/25 boiler has a warranty covering parts and labour costs for up to 2 years after installation.


Worcester Bosch Greenstar Danesmoor External System 18/25 Oil System boiler specifications

Powered by GasOil
LocationExternal
Condensing?Yes
Efficiency rating90%
Band ratingA
LPG Compatible?No
P/L Warranty2 Years
Output in kW25 kW
Height950 mm
Width565 mm
Depth780 mm
MountingFloor
ERP HeatA

The top 10 rated Oil System boilers

Using the Plumbproud scoring system, the current 10 ten Oil System boilers assessed using a number of important variables are as follows:

1Worcester Bosch Greenstar Danesmoor System Utility 12/1877.56%
2Worcester Bosch Greenstar Danesmoor System 12/1877.35%
3Worcester Bosch Greenstar Danesmoor System Utility 18/2577.27%
4Worcester Bosch Greenstar Danesmoor System 18/2577.09%
5Worcester Bosch Greenstar Danesmoor External System 12/1876.74%
6Worcester Bosch Greenstar Danesmoor System Utility 25/3276.43%
7Worcester Bosch Greenstar Danesmoor External System 18/2576.26%
8Worcester Bosch Greenstar Danesmoor System 25/3276.24%
9Worcester Bosch Greenstar Danesmoor External System 25/3275.85%
10Grant Vortex Eco 15-21kW69.11%

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Worcester Bosch Greenstar Danesmoor External System 18/25 System Oil boiler

  1. Home
  2. Worcester Bosch Greenstar Danesmoor External System 18/25
Plumbproud rating for this boiler
76.26%

Our PlumbProud quality scoring system considers important factors like energy efficiency, the length of a manufacturer’s guarantee, likely running costs, and installed price to determine a boiler's value for money. This model has received 76.26% from our engineers.

On most non-complicated installations, we would expect this Worcester Bosch Greenstar Danesmoor External System 18/25 System boiler to cost £3,500 supplied and fully professionally installed.

Wondering if the Worcester Bosch Greenstar Danesmoor External System 18/25 is the right boiler for your home? Then speak to a professional here by getting in touch via email or call us on 01604 343053. You can also get a free quote by entering your postcode in the box on the page.


Installed price guideline
£3,500

Get your free quote

Worcester Bosch Greenstar Danesmoor External System 18/25 Oil System boiler specifications

Powered by GasOil
LocationExternal
Condensing?Yes
Efficiency rating90%
Band ratingA
LPG Compatible?No
P/L Warranty2 Years
Output in kW25 kW
Height950 mm
Width565 mm
Depth780 mm
MountingFloor
ERP HeatA

Worcester Bosch Greenstar Danesmoor External System 18/25 System Oil boiler frequently asked questions

Which category of boiler does the Worcester Bosch Greenstar Danesmoor External System 18/25 fit into?

The Worcester Bosch Greenstar Danesmoor External System 18/25 boiler is an option you may wish to consider if you're looking for a system boiler for your house or flat.

System boilers, like regular boilers, require a hot water cylinder (usually placed in a landing or airing cupboard) to work but they don’t require a separate cold water tank. This makes installation quicker and easier and, for homeowners with little loft space or who are considering a loft conversion, they're a more suitable choice.

System boilers don't need separate water tanks because they contain built-in circulating pumps that perform the same task. Just like heat only boilers, they require you to program in the times when you want heating and hot water to be available - they don't offer instant hot water like combi boilers. The cylinders keep whatever water they contain warm, although, if there is no hot water in the tank, you will have to wait up to an hour before hot water will come through your taps.

Is a Worcester Bosch Greenstar Danesmoor External System 18/25 system boiler suitable for my house or flat?

Selecting the right boiler for your home means choosing a boiler that is the right size. And, by size, we don't mean how big it is, we mean how powerful it is - the "output".

Your boiler’s output is a measurement of the power it has available to it to heat the water you need for your radiators or for when you turn on a tap, bath or shower. A higher output rate means it has more power and can heat more water.

It's important to choose an output that matches the demand for water in your home because if your boiler has too low an output, you'll often find only lukewarm water comes out of your taps or heats your radiators. If it’s too high, you’ll be paying more for your oil than you need to.

The Worcester Bosch Greenstar Danesmoor External System 18/25 system has an output of 25 kW, so which types of property would this Worcester Bosch Greenstar Danesmoor External System 18/25 System boiler be appropriate for?

Most experienced Gas Safe boiler installers would suggest that the Worcester Bosch Greenstar Danesmoor External System 18/25 system boiler would be a suitable choice for installation in medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Worcester Bosch Greenstar Danesmoor External System 18/25 dimensions

The Worcester Bosch Greenstar Danesmoor External System 18/25 occupies a space of 950 mm high by 565 mm wide and 780 mm deep.

Floor-standing external system boilers like the Worcester Bosch Greenstar Danesmoor External System 18/25 are safer as the oil it uses for fuel is not stored inside your home meaning there is little to no chance of an internal leak occurring which can damage your home and leave oily odours that become difficult to eradicate.

External boilers free up space in your home and because they're outside, you rarely hear them working. In addition, a service engineer can quickly fix it if it has problems, and there is a lower chance of carbon monoxide entering your home.

Is the Worcester Bosch Greenstar Danesmoor External System 18/25 non-condensing or condensing?

Condensing boilers convert the warmth present in flue exhaust gases and water vapour condensation into heat which they then recycle to increase the temperature of the colder water returning to your system.

We recommend that homeowners choose a condensing boiler like the Worcester Bosch Greenstar Danesmoor External System 18/25 for this reason - the more recent your model the better because the technology improves every year.

You'll benefit from lower quarterly oil bills and condensing boilers are also much more environmentally friendly.

Is the Worcester Bosch Greenstar Danesmoor External System 18/25 system boiler rated as environmentally friendly?

How we heat our homes and the effect that has on climate change has become important to many homeowners worried about the environment.

Central heating systems are responsible for 14% of greenhouse gas emissions in the UK. You may also be aware that the gas boilers we use emit dangerous nitrogen dioxide in large volumes in the bigger British cities.

Would choosing a Worcester Bosch Greenstar Danesmoor External System 18/25 system help in the fight against climate change? What do the performance statistics suggest?

All boilers manufactured after April 2018 in the UK must be rated as an “A” on the SEDBUK grading system, subject to a minimum energy efficiency rating of 92% or above. Before that, the minimum rate was 88% - boilers with an energy efficiency of 88% or 89% were given a “B” rating. Boilers scoring 90% or more were given an "A" rating.

The energy efficiency rating for a boiler describes the amount of energy it uses and how much goes to waste in operation.

The Worcester Bosch Greenstar Danesmoor External System 18/25 has an efficiency rating of 90% with a SEDBUK grade of "A".

The Energy Related Products Directive intends to encourage all manufacturers to reduce harmful gas emissions connected to the products they make, from the manufacturing stage to final disposal, including when they are in active use.

The Worcester Bosch Greenstar Danesmoor External System 18/25 has an ERP rating of "A".

If the Worcester Bosch Greenstar Danesmoor External System 18/25 system boiler breaks down, am I covered?

Parts and labour charges incurred during a repair on the Worcester Bosch Worcester Bosch Greenstar Danesmoor External System 18/25 boiler are covered by a 2 year warranty.


The top 10 rated Oil System boilers

Using the Plumbproud scoring system, the current 10 ten Oil System boilers assessed using a number of important variables are as follows:

1Worcester Bosch Greenstar Danesmoor System Utility 12/1877.56%
2Worcester Bosch Greenstar Danesmoor System 12/1877.35%
3Worcester Bosch Greenstar Danesmoor System Utility 18/2577.27%
4Worcester Bosch Greenstar Danesmoor System 18/2577.09%
5Worcester Bosch Greenstar Danesmoor External System 12/1876.74%
6Worcester Bosch Greenstar Danesmoor System Utility 25/3276.43%
7Worcester Bosch Greenstar Danesmoor External System 18/2576.26%
8Worcester Bosch Greenstar Danesmoor System 25/3276.24%
9Worcester Bosch Greenstar Danesmoor External System 25/3275.85%
10Grant Vortex Eco 15-21kW69.11%
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