GET A COMPETITIVE QUOTE

Please enter your postcode below to get a free, no obligation, personalised quotation from PlumbProud

Worcester Bosch Greenstar 2000 25kW boiler

  1. Home
  2. Worcester Bosch Greenstar 2000 25kW
Plumbproud rating

92.89%

Worcester Bosch Greenstar 2000 25kW Combi Gas boiler

Considering lots of different factors such as price installed, manufacturer guarantees, energy efficiency, and the likely running cost, we’ve given this Worcester Bosch Greenstar 2000 25kW Combi boiler a rating of 92.89% using our PlumbProud quality scoring system.

Fitted by an experienced Gas Safe PlumbProud engineer, the cost for this Worcester Bosch Greenstar 2000 25kW Combi boiler will be in the region of £1,800 on a standard, non-complicated installation.

To receive a free quote on the Worcester Bosch Greenstar 2000 25kW boiler, as well as professional advice on whether it will meet the needs of your home, simply enter your postcode in the quote box on this page, click here to email us, or call 01604 343053.


Installed price around

£1,800

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 2000 25kW Combi Gas boiler frequently asked questions

Worcester Bosch Greenstar 2000 25kW - a regular boiler, combi boiler or system boiler?

The Worcester Bosch Greenstar 2000 25kW boiler is a combi boiler you may wish to consider when looking for a new boiler for your house or flat.

Combi boilers provide hot water or heating for your home on demand. You just need to turn the tap to get hot water or switch on the radiator and you’ll feel your home warm up within minutes.

In contrast, traditional boilers required either one or two large storage tanks to work - one to heat and keep water warm and the other to hold cold water for later heating. If the immersion tank was empty, it wasn’t uncommon to wait up to an hour for enough hot water to fill a bath, for example.

Combi boilers draw cold water from the mains and then heat it instantly whenever it's needed, all from one small unit.

The one disadvantage to combi boilers is that, if more than one point is in use at any one time (for example, if someone is taking a shower and another person turns on a hot water tap elsewhere in the property), water pressure, temperature and volume drop to both points.

Should I install a Worcester Bosch Greenstar 2000 25kW combi boiler in my house or flat?

To determine that, we need to consider the size of the boiler. However, size doesn't refer to how big a boiler is - it means the size of its "output".

Your boiler’s output is a measurement of the power it has available to heat the volume of water required for your taps and radiators. The higher the output rate, the more water it can heat.

You need to be careful to select a boiler with the optimal level of output for your property though. That's because, if your boiler output is too low, your water and radiators will often not be as hot as you want them to be. If the output is too high, you’ll be paying more for gas than you need to.

The output of the Worcester Bosch Greenstar 2000 25kW combi is 25 kW, so which types of property would this Worcester Bosch Greenstar 2000 25kW Combi boiler be appropriate for?

An experienced PlumbProud heating engineer would recommend that the level of output from this Worcester Bosch Greenstar 2000 25kW Combi boiler would make it a suitable installation option for smaller homes and apartments with up to 10 radiators and one bathroom.

Please remember too that all combi boilers draw water from the mains - they have no storage tanks. Combis heat the water from the mains on demand and then send it to wherever it's needed in the house, like a radiator, a bathroom or a kitchen.

The speed at which it can do this is called the "flow rate", which is measured in litres per minute. If you have a lot of radiators and bathrooms in your home and multiple people are regularly trying to use the hot water at one time, such as in the morning or evening, you'll need a combi with a high flow rate. This Worcester Bosch Greenstar 2000 25kW Combi boiler's flow rate is 10 L/m.

However, it's not that simple. Combis can only draw water from the mains at the speed it's delivered. If the flow rate of the local water supply is 11l/m, you shouldn't purchase a boiler with a flow rate of 17l/m because it will never be able to use that extra capacity.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.


What size is the Worcester Bosch Greenstar 2000 25kW boiler?

The Worcester Bosch Greenstar 2000 25kW occupies a space of 724 mm high by 400 mm wide and 300 mm deep.

Is the Worcester Bosch Greenstar 2000 25kW a non-condensing or condensing boiler?

Is the Worcester Bosch Greenstar 2000 25kW combi boiler rated as environmentally friendly?

How we heat our homes has become a pressing issue of concern for many homeowners worried about climate change and the environmental impact of their personal choices.

Approximately 14% of the UK's greenhouse gas production is caused by our central heating systems. The gas boilers in larger urban areas of Britain are mainly responsible for emissions of toxic nitrogen dioxide.

Is the Worcester Bosch Greenstar 2000 25kW combi boiler an environmentally friendly choice for your home? Here’s what the figures say.

Boilers manufactured or supplied to UK domestic properties must achieve a legal minimum energy efficiency rating of 92% (equivalent to a good "A" grade using the SEDBUK scale). Prior to this, the minimum was 88% (88% and 89% are a "B" SEDBUK grade and anything 90% or above is an "A" grade).

The energy efficiency rating of a boiler refers to the amount of energy it uses to perform its everyday functions as well as the amount of energy it wastes.

The Worcester Bosch Greenstar 2000 25kW has been given a rating of 93% for energy efficiency, equivalent to a SEDBUK "A" rating.

The aim of the Energy Related Products (ERP) Directive is to reduce the harmful gas emissions created during a product’s manufacture and active end use right through to its disposal.

The ERP rating for the Worcester Bosch Greenstar 2000 25kW is "A" for heat and "A" for water.

How long is the warranty period on a Worcester Bosch Greenstar 2000 25kW combi boiler?

A parts and labour warranty of 5 years is included with the Worcester Bosch Worcester Bosch Greenstar 2000 25kW boiler.


Worcester Bosch Greenstar 2000 25kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Efficiency rating93%
Band ratingA
LPG Compatible?Yes
P/L Warranty5 Years
Output in kW25 kW
Height724 mm
Width400 mm
Depth300 mm
MountingWall
Flow rate10 L/m
ERP HeatA
ERP WaterA

The top 10 rated Gas Combi boilers

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

1Vaillant ecoTEC Plus 82593.35%
2Vaillant ecoTEC Plus 83292.98%
3Worcester Bosch Greenstar 2000 25kW92.89%
4Viessmann Vitodens 050-W 29kW92.66%
5Vaillant ecoTEC Plus 83592.60%
6Worcester Bosch Greenstar CDi Compact 2892.57%
7Vaillant ecoFIT Pure 82592.39%
8Vaillant ecoTEC Plus 83892.16%
9Vaillant ecoTEC Exclusive IQ 83591.90%
10Vaillant ecoTEC Pro 2491.77%

Combi boilers

Choose from the UK’s biggest range of combis

Heat only boilers

The ideal boiler perfect for the largest homes

System boilers

Ideal for 3+ bedroom, 2+ bathroom homes

Boiler quote

Free, no obligation quote from our engineer

Worcester Bosch Greenstar 2000 25kW boiler

We will not be beaten on price -
ask us about our PRICE GUARANTEE!

Worcester Bosch Greenstar 2000 25kW Combi Gas boiler

  1. Home
  2. Worcester Bosch Greenstar 2000 25kW
Plumbproud rating for this boiler
92.89%

Using factors such as price installed, manufacturer guarantees, energy efficiency and the likely cost of running, among others, this model has been rated as scoring 92.89% on the PlumbProud boiler benchmarking system.

Provided the proposed installation is straightforward, we would anticipate that this Worcester Bosch Greenstar 2000 25kW Combi boiler will cost £1,800 fully installed through PlumbProud.

Get a better understanding of installation costs for the Worcester Bosch Greenstar 2000 25kW by entering your postcode in the box supplied on this page. You can also call our professional team with any boiler-related queries on 01604 343053. Alternatively, please click here to email us.


Installed price guideline
£1,800

Get your free quote

Worcester Bosch Greenstar 2000 25kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Efficiency rating93%
Band ratingA
LPG Compatible?Yes
P/L Warranty5 Years
Output in kW25 kW
Height724 mm
Width400 mm
Depth300 mm
MountingWall
Flow rate10 L/m
ERP HeatA
ERP WaterA

Worcester Bosch Greenstar 2000 25kW Combi Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar 2000 25kW a regular, combi or system boiler?

If you’re looking for a combi boiler for your house or flat, you may wish to the consider the Worcester Bosch Greenstar 2000 25kW.

Traditional boilers have one or more large tanks in which they store either heated water or water to be heated later. Manufacturers originally introduced combi boilers to the market in the 1970s to enable homeowners to save space - UK residential properties are among the smallest in the Western world.

Combi boilers don't need these tanks because they draw water directly from the mains and instantly heat it on demand thanks to the technology inside the boiler. Combi boilers then distribute this hot water to your home’s taps and radiators when needed.

The most significant disadvantage of combi boilers is that they are not ideal in larger homes where multiple people might want hot water at the same time – for example, if someone is having a shower while another wants to wash dishes in the kitchen. This is because combi boilers have a maximum volume of water that they can heat. When two people want hot water at the same time, the water temperature, pressure and volume delivered to both points drop.

Is a Worcester Bosch Greenstar 2000 25kW combi boiler suitable for my apartment or house?

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

A boiler's output level measures how much power it can use to provide you with the hot water you need for your radiators and taps. If a boiler has a high output rate, it can heat greater volumes of water.

If you choose a boiler with too low an output, you'll find that the water coming out of your taps and in your radiators won't be as hot as you want it to be. Choosing one whose output is too high means you'll pay more than you need to for the gas your boiler needs to work.

The Worcester Bosch Greenstar 2000 25kW combi outputs at a maximum of 25 kW, so which types of property would this Worcester Bosch Greenstar 2000 25kW Combi boiler be appropriate for?

A PlumbProud Gas Safe boiler installer would recommend that this Worcester Bosch Greenstar 2000 25kW Combi boiler be installed in smaller homes and apartments with one bathroom and up to 10 radiators.

Homeowners considering fitting a combi boiler to their home need to consider flow rates as well as output rates.

The flow rate is a measurement of the volume of water a combi can instantly heat and send to the taps and radiators around your home. The higher the likely demand for hot water in your home, the higher your combi's flow rate should be. This Worcester Bosch Greenstar 2000 25kW Combi boiler's flow rate is 10 L/m.

Unlike heat only or system boilers, combi boilers don't store hot water in a tank for later use - instead, they draw it directly from the mains. This means that the volume of water your boiler can actually process is constrained by the flow rate of water in the mains pipe.

So, if you choose a combi boiler with a 15l/m flow rate but the flow rate in your mains pipe is 12l/m, the combi boiler's working flow rate is also 12l/m.

Combi boilers are also not always the correct choice for homes with multiple bathrooms, a high number of radiators, or where more than one family member will want to use hot water at the same time.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.


What size is a Worcester Bosch Greenstar 2000 25kW boiler?

The Worcester Bosch Greenstar 2000 25kW is 724 mm in height, 400 mm in width and 300 mm in depth.

Is the Worcester Bosch Greenstar 2000 25kW non-condensing or condensing?

How does the Worcester Bosch Greenstar 2000 25kW combi rate environmentally?

How we heat our homes has become a major issue for many people worried about climate change and environmental issues in general.

14% of the total amount of greenhouse gases produced by the UK comes from the central heating systems we use. In some of Britain's biggest cities, gas boilers create dangerous levels of nitrogen dioxide in the atmosphere.

Would choosing the Worcester Bosch Greenstar 2000 25kW combi help the environment? Let's see what the statistics suggest.

All boilers manufactured and installed in the UK are required by law to have an energy efficiency rating of at least 92%, equivalent to a good “A” rating on the SEDBUK scale. Before this, the minimum was 88% (ratings of 88% and 89% are equivalent to a high “B” SEDBUK rating and anything 90% or higher is an "A" rating).

A boiler's energy efficiency rating is designed to let you know how much energy is used and wasted during normal functioning.

The Worcester Bosch Greenstar 2000 25kW was given an efficiency rating of 93% and a band rating of "A".

The ERP, short for the Energy Related Products Directive, is a European directive aimed at encouraging manufacturers to create products that are environmentally friendlier at all stages, including during manufacturing, when the product is in active use, right through to the point of final disposal.

The Worcester Bosch Greenstar 2000 25kW has a rating of "A" for heat and "A" for hot water production.

If the Worcester Bosch Greenstar 2000 25kW combi boiler breaks down, am I covered?

The manufacturer offers a parts and labour warranty of 5 years on the Worcester Bosch Greenstar 2000 25kW boiler to new customers.


The top 10 rated Gas Combi boilers

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

1Vaillant ecoTEC Plus 82593.35%
2Vaillant ecoTEC Plus 83292.98%
3Worcester Bosch Greenstar 2000 25kW92.89%
4Viessmann Vitodens 050-W 29kW92.66%
5Vaillant ecoTEC Plus 83592.60%
6Worcester Bosch Greenstar CDi Compact 2892.57%
7Vaillant ecoFIT Pure 82592.39%
8Vaillant ecoTEC Plus 83892.16%
9Vaillant ecoTEC Exclusive IQ 83591.90%
10Vaillant ecoTEC Pro 2491.77%
Menu