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Worcester Bosch Greenstar 4000 15kW boiler

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Plumbproud rating

91.93%

Worcester Bosch Greenstar 4000 15kW System Gas boiler

We have determined a rating of 91.93% for this Worcester Bosch Greenstar 4000 15kW System boiler using the PlumbProud quality benchmarking system. Factors used to score a boiler include its energy performance, how much it costs to run, the installation price, and how long the manufacturer's guarantee lasts.

Expect this Worcester Bosch Greenstar 4000 15kW System boiler to cost you £2,100 fully installed where there are no complications on the fit if you choose PlumbProud for this installation.

To receive a free quote on the Worcester Bosch Greenstar 4000 15kW 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

£2,100

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Worcester Bosch Greenstar 4000 15kW System Gas boiler frequently asked questions

Worcester Bosch Greenstar 4000 15kW - a regular boiler, combi boiler or system boiler?

The Worcester Bosch Greenstar 4000 15kW is an option you may wish to consider if you’re looking for a system boiler for your house or flat.

System boilers need a hot water cylinder to work but, unlike heat only boilers, they don't require a cold water tank. This can be advantageous if you live in an apartment, lack attic space, or are planning a loft conversion.

System boilers allow you to set the times when you want hot water to be available. Heated water is stored in the cylinder and can be used throughout the day. With a system boiler, if you forget to set the timer, you will have to wait a while for hot water.

The constant supply of hot water from the cylinder ensures that you can have multiple taps and showers in use without a loss of pressure to each point (something combi boilers struggle with). This makes a system boiler suitable for large families and homes with more than one bathroom.

Is a Worcester Bosch Greenstar 4000 15kW system boiler appropriate for my house or apartment?

It's best to choose a boiler whose size or "output" is right for your property. With boilers, however, size does not mean how big a boiler is, it means how much power it has.

The output of a boiler is measured in kilowatts and tells you how much power it has available to heat the water it sends to your hot taps, showers and radiators. The greater the demand for hot water in your home, the larger the output you will need.

It is important to select a boiler with the optimal output rate. Choose one with too high an output and your gas bills will be too expensive. Choose one with too low an output and sometimes the water in your radiators and coming out of your taps will be barely lukewarm.

The output of the Worcester Bosch Greenstar 4000 15kW system is 15 kW kilowatts, so which types of property would this be most suitable for?

Most Gas Safe boiler installers would recommend that this Worcester Bosch Greenstar 4000 15kW System boiler would be suitable for smaller homes and apartments with up to 10 radiators and one bathroom.


What size is a Worcester Bosch Greenstar 4000 15kW boiler?

The Worcester Bosch Greenstar 4000 15kW measures 724 mm high and 400 mm wide by a depth of 310 mm.

Is the Worcester Bosch Greenstar 4000 15kW a non-condensing or condensing boiler?

Does the Worcester Bosch Greenstar 4000 15kW system protect the environment?

With environmental issues in the spotlight, more and more homeowners are becoming concerned about how they heat their homes and how much they're contributing towards combatting climate change.

In the UK, central heating systems account for 14% of greenhouse gas production. Gas boilers in particular are responsible for emissions of dangerous nitrogen dioxide in British cities.

Do the figures suggest that installing the Worcester Bosch Greenstar 4000 15kW system at your property would help in the fight against climate change?

Boilers manufactured after April 2018 in the UK must achieve an "A" on the SEDBUK grading system as well as score a minimum of 92% on a separate energy efficiency test. Prior to that, the minimum was 88% - boilers rated at 88% and 89% were given a “B” rating (90% and higher were given an "A").

An energy efficiency rating describes how much energy the boiler uses and how much it wastes when in use.

The Worcester Bosch Greenstar 4000 15kW was awarded an efficiency rating of 94% with a SEDBUK grading of "A".

In 2015, the Energy Related Products Directive (ERP) came into force. The legislation applies to all products that consume energy - in production, during their active life, and at the point of final disposal.

The ERP was introduced to incentivise manufacturers to create products that emit fewer harmful gases with the larger aim of protecting the wider environment.

The Worcester Bosch Greenstar 4000 15kW has been awarded an ERP rating of "A".

What is the warranty period on a Worcester Bosch Greenstar 4000 15kW system boiler?

The Worcester Bosch Greenstar 4000 15kW boiler is covered by a parts and labour warranty of 7 years.


Worcester Bosch Greenstar 4000 15kW Gas System boiler specifications

Powered by GasGas
LocationExternal
Efficiency rating94%
Band ratingA
P/L Warranty7 Years
Output in kW15 kW
Height724 mm
Width400 mm
Depth310 mm
MountingWall
ERP HeatA

The top 10 rated Gas System boilers

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

1Vaillant ecoTEC Plus 61295.72%
2Vaillant ecoTEC Plus 61595.20%
3Vaillant ecoTEC Plus 61894.37%
4Vaillant ecoTEC Plus 62493.33%
5Worcester Bosch Greenstar i System 9i92.89%
6Vaillant ecoTEC Plus 63092.75%
7Worcester Bosch Greenstar 4000 12kW92.50%
8Vaillant ecoTEC Exclusive IQ 62792.42%
9Vaillant ecoFIT Pure 61292.38%
10Vaillant ecoFIT Pure 61592.36%

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Worcester Bosch Greenstar 4000 15kW boiler

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Worcester Bosch Greenstar 4000 15kW System Gas boiler

  1. Home
  2. Worcester Bosch Greenstar 4000 15kW
Plumbproud rating for this boiler
91.93%

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 91.93% on the PlumbProud boiler benchmarking system.

This Worcester Bosch Greenstar 4000 15kW System boiler will cost approximately £2,100 supplied and fully installed through PlumbProud assuming that there are no unexpected complications during the fitting.

We recommend that you speak to our friendly advisors by calling 01604 343053 to seek professional advice on whether the Worcester Bosch Greenstar 4000 15kW boiler is right for your home. Our team can also provide you with a free quotation for this Worcester Bosch Greenstar 4000 15kW System boiler. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


Installed price guideline
£2,100

Get your free quote

Worcester Bosch Greenstar 4000 15kW Gas System boiler specifications

Powered by GasGas
LocationExternal
Efficiency rating94%
Band ratingA
P/L Warranty7 Years
Output in kW15 kW
Height724 mm
Width400 mm
Depth310 mm
MountingWall
ERP HeatA

Worcester Bosch Greenstar 4000 15kW System Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar 4000 15kW boiler a combi, regular or a system boiler?

Worcester Bosch’s Greenstar 4000 15kW is one you might consider if you’re looking for a system boiler for your house or flat.

System boilers work similarly to heat only boilers in that they need a hot water cylinder (usually installed in the home’s airing or landing cupboard) to operate. Unlike heat only boilers though, system boilers don’t require a separate cold-water tank, making them a more suitable choice in homes with little or no attic space or where homeowners are planning a loft conversion in the future.

Instead of large cold-water tanks, system boilers use built-in circulating pumps to provide hot water to your taps and radiators. This makes them easier to install from scratch as they have one less component to find room for and fit.

System boilers need to be programmed with the time you want heat and hot water - they don't offer hot water on demand like combi boilers.

Is the Worcester Bosch Greenstar 4000 15kW system boiler suitable for my house or apartment?

Whether this Worcester Bosch Greenstar 4000 15kW System boiler is right for your property depends on its size or what its "output" level is. Size does not mean its physical dimensions, however - it means how powerful it is.

The output rating indicates how much energy a boiler can use in providing you with hot water and heat when you need it from your radiators and taps. The greater the output, the more water it can heat.

It's better to take advice on this from a registered installer because, if your boiler output is too low, your water and radiators might not get as hot as you would like them to be. However, if the output level is too high, you'll end up paying more on your gas bills than you need to.

Which types of property would this Worcester Bosch Greenstar 4000 15kW System boiler be appropriate for given its output of 15 kW?

An experienced Gas Safe engineer would be likely to recommend that this Worcester Bosch Greenstar 4000 15kW System boiler is capable of providing heating and hot water to up to 10 radiators and one bathroom and would therefore be most suitable for smaller homes and apartments.


The size of the Worcester Bosch Greenstar 4000 15kW

The Worcester Bosch Greenstar 4000 15kW's dimensions are 724 mm [H] x 400 mm [W] x 310 mm [D].

Is the Worcester Bosch Greenstar 4000 15kW non-condensing or condensing?

Is the Worcester Bosch Greenstar 4000 15kW system considered 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 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.

Will choosing a Worcester Bosch Greenstar 4000 15kW system boiler for your home be positive for the environment? Let's examine the figures.

Boilers manufactured and installed in the UK are assigned energy efficiency ratings following testing to an agreed set of standards. These scores indicate how much energy the boiler uses and how much goes to waste when it's in operation.

By law, boilers must achieve a SEDBUK rating of "A" subject to achieving a minimum of 92% energy efficiency. Prior to April 2018, the minimum was 88% (88% and 89% on the SEDBUK are graded "B" and 90% and above is graded "A").

The Worcester Bosch Greenstar 4000 15kW was awarded an efficiency rating of 94% with a SEDBUK band rating of "A".

The Energy Related Products Directive (ERP) intends to reduce the amount of energy consumed by individual products over their entire lifetime, from the initial manufacturing process to final disposal and at all points in between.

The legislation is designed to encourage manufacturers to create products that are more environmentally friendly and which result in a reduction in harmful gas emissions.

The ERP rating for the Worcester Bosch Greenstar 4000 15kW is "A".

What length of warranty does the Worcester Bosch Greenstar 4000 15kW come with?

The parts and labour warranty offered with this Worcester Bosch Greenstar 4000 15kW System boiler covers you for 7 years.


The top 10 rated Gas System boilers

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

1Vaillant ecoTEC Plus 61295.72%
2Vaillant ecoTEC Plus 61595.20%
3Vaillant ecoTEC Plus 61894.37%
4Vaillant ecoTEC Plus 62493.33%
5Worcester Bosch Greenstar i System 9i92.89%
6Vaillant ecoTEC Plus 63092.75%
7Worcester Bosch Greenstar 4000 12kW92.50%
8Vaillant ecoTEC Exclusive IQ 62792.42%
9Vaillant ecoFIT Pure 61292.38%
10Vaillant ecoFIT Pure 61592.36%
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