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Worcester Bosch Greenstar 2000 25kW boiler

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Plumbproud rating

92.89%

Worcester Bosch Greenstar 2000 25kW Combi Gas boiler

Our PlumbProud boiler quality benchmark tests score this Worcester Bosch Greenstar 2000 25kW Combi boiler at 92.89%. Several factors go into determining our rating including installation costs, manufacturer guarantees, energy efficiency, running costs, and more.

On straightforward installations, we would expect to charge you £1,800 for this Worcester Bosch Greenstar 2000 25kW Combi boiler fully installed.

For advice on whether this Worcester Bosch Greenstar 2000 25kW Combi boiler is suitable for your home or to receive a free quotation on theWorcester Bosch Worcester Bosch Greenstar 2000 25kW, please call 01604 343053 to speak to one of our team. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


Installed price around

£1,800

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

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

The Worcester Bosch Greenstar 2000 25kW may be worth considering if you are looking for a combi boiler for your house or flat.

In older British homes, traditional boilers required you to find room for one or more storage tanks. One tank would keep hot water warm and the other stored cold water for later heating. Manufacturers introduced combi boilers to the UK in the 1970s so that homeowners could get the warmth and hot water they needed without having to sacrifice too much valuable space – remember that residential property in this country is among the smallest in the Western world.

Combi boilers deliver hot water to your radiators and taps using water they draw directly from the mains supply. As mains water travels through a combi boiler, the technology within it heats the cold water instantly and on demand. The hot water is then distributed throughout your house.

Combi boilers have one drawback, however: they can only heat a certain amount of water within a given time. For example, if someone uses the shower and another person uses the hot water tap at the same time, water pressure drops because water reaches each point differently.

Is the Worcester Bosch Greenstar 2000 25kW combi boiler a suitable choice for my property?

It's best to choose a boiler whose size or "output" is right for your home.

The more hot water and heat you want, the higher the output level of your boiler should be. Output is measured in kilowatts and it describes the maximum level of power your boiler has to heat water.

If your output level is too low, your boiler will not have the power it needs to get your water as hot as you want it, particularly when there's a lot of demand for it. Choose a boiler whose output level is too high and you'll have all the hot water you need but will be paying too much for it through higher gas bills.

Which types of property would this Worcester Bosch Greenstar 2000 25kW Combi boiler be appropriate for given its output of 25 kW?

Most experienced heating engineers would likely recommend that, at this level of output, this Worcester Bosch Greenstar 2000 25kW Combi boiler would be a suitable choice for smaller homes and apartments with up to 10 radiators and one bathroom.

The Worcester Bosch Greenstar 2000 25kW is a combi boiler, which that means that you need to take the flow rate (measured in litres per minute) into account as well as the output rate. This Worcester Bosch Greenstar 2000 25kW Combi boiler's flow rate is 10 L/m.

Combis draw water from the mains, instantly heating and distributing it where it's needed - taps, radiators, bathrooms, and so on.

However, this means that the flow rate of a boiler may effectively be capped by the flow rate of the mains water supply. For example, if your mains pressure is 12l/m, that is the maximum flow rate that your boiler can achieve even if you choose a boiler with a flow rate of 18l/m.

In addition, if your home has more than one bathroom, a high number of radiators, and more than one member of your household wants to use hot water at the same time regularly, the flow rate of both the boiler and the mains water pressure may not be high enough.

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.


Worcester Bosch Greenstar 2000 25kW - size in millimetres

The dimensions of the Worcester Bosch Greenstar 2000 25kW are 724 mm tall, 400 mm wide, and 300 mm deep.

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

How environmentally friendly is the Worcester Bosch Greenstar 2000 25kW combi?

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

Central heating accounts for 14% of greenhouse gas emissions in the UK. In larger British cities, gas boilers emit dangerous levels of nitrogen dioxide into the atmosphere.

Would installing the Worcester Bosch Greenstar 2000 25kW combi in your home be an environmentally friendly decision? Let's look closely at 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 2000 25kW was awarded an efficiency rating of 93% 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 ERP (or Energy Related Products Directive) is a European regulation governing products which require energy to operate throughout their lives and encourages manufacturers to create products that are more environmentally friendly.

The legislation is designed to reduce the potential for harmful gas emissions during manufacturing and actual use right through to the point of final disposal.

For the Worcester Bosch Greenstar 2000 25kW, the ERP rating is "A" for heat and "A" for hot water production.

If the Worcester Bosch Greenstar 2000 25kW breaks down, will I be covered by the warranty?

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


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%

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Worcester Bosch Greenstar 2000 25kW boiler

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Worcester Bosch Greenstar 2000 25kW Combi Gas boiler

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

Using the PlumbProud boiler quality scoring system, we have rated this model at 92.89%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

This Worcester Bosch Greenstar 2000 25kW Combi boiler will cost approximately £1,800 supplied and fully installed through PlumbProud assuming that there are no unexpected complications during the fitting.

To receive a free quote on the Worcester Bosch Greenstar 2000 25kW and to get professional guidance and advice on whether this Worcester Bosch Greenstar 2000 25kW Combi boiler is the right choice for your home, please call us on 01604 343053, enter your postcode in the quote boxes on this page, or 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 system, regular or combi boiler?

Worcester Bosch’s Greenstar 2000 25kW is one you might consider if you’re looking for a combi boiler for your house or flat.

Traditionally, most boilers required you to find space in your property for one or more large storage tanks. These tanks would either keep water warm or hold it in reserve for later heating. Manufacturers originally introduced combi boilers to offer homeowners the same level of warmth and hot water without taking up as much space – remember that the UK has some of the smallest homes in the Western world.

With a combi boiler, the hot water needed for your radiators and taps is provided on demand. Water from the mains passes through your combi boiler and the technology within it instantly heats the cold water. It then distributes that hot water around your home.

The biggest drawback for combi boilers is that they have a maximum capacity in volume for heating water. This means that if someone wants to use the shower while another person wants to use a hot water tap, the amount of water reaching each point falls, resulting in a drop in water pressure.

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

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

Boiler output is measured in kilowatts and tells you how much power a boiler can use to heat the water your taps, showers and radiators need. The higher the output, the more power it has.

When choosing a boiler, you should choose one that can cope with the peak demand for hot water in your home and not just your typical usage.

If its output is too low, sometimes your hot water will not be hot enough, but if your boiler's output is too high for your needs, your gas bills will go up and not down.

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 an appropriate choice for?

Most heating engineers would suggest that the Worcester Bosch Greenstar 2000 25kW combi boiler would be a suitable choice for installation in smaller homes and apartments with up to 10 radiators and one bathroom.

In addition to the output rate, you should consider a boiler's "flow rate" (measured in litres per minute) when choosing a combi boiler.

If you have a lot of radiators and bathrooms in your home and members of your household want to use hot water at the same time (like morning or evening showers and baths), you'll need a boiler 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. Homes with higher than average demand for hot water, and particularly those in low mains pressure areas, may find that a combi boiler is not the right answer for them.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead to better serve you and your family.


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

The Worcester Bosch Greenstar 2000 25kW boiler is 724 mm high, 400 mm wide, and 300 mm deep.

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

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

Many homeowners are becoming increasingly concerned about how they heat their homes and the impact it has on climate change and other important environmental issues.

Dangerous levels of nitrogen dioxide emissions in larger UK cities are caused by gas boilers in domestic properties, and 14% of the UK’s greenhouse gas production is as a result of central heating.

If you decide to install a Worcester Bosch Greenstar 2000 25kW combi in your home, will you be helping the environment with your choice? Let’s have a look at the figures.

All new British boilers must perform to a legal minimum energy efficiency of 92% (a low to good SEDBUK "A" rating). Prior to April 2018, the target was 88% (86-90% = SEDBUK "B" and 90%+ = SEDBUK "A").

Efficiency ratings are intended to let consumers know how much energy a boiler uses in its day-to-day activities and how much energy goes to waste.

The Worcester Bosch Greenstar 2000 25kW was awarded an efficiency rating of 93%, equivalent to a SEDBUK grade of "A".

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

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

Am I covered if my Worcester Bosch Greenstar 2000 25kW combi boiler breaks down?

Worcester Bosch offers a parts and labour warranty of 5 years on the Worcester Bosch Greenstar 2000 25kW.


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%
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