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Worcester Bosch Greenstar 4000 24kW boiler

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Plumbproud rating

90.62%

Worcester Bosch Greenstar 4000 24kW System Gas boiler

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 90.62% from our engineers.

On most non-complicated installations, we would expect this Worcester Bosch Greenstar 4000 24kW System boiler to cost £2,200 supplied and fully professionally installed.

You can get more information and a free quote for the Worcester Bosch Greenstar 4000 24kW boiler by entering your postcode in the quote boxes on this page, clicking here to email us, or by giving us a call on 01604 343053.


Installed price around

£2,200

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 4000 24kW System Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar 4000 24kW a combi boiler, system boiler or regular boiler?

The Worcester Bosch Greenstar 4000 24kW is a system boiler you may wish to consider if you want this particular type of boiler for your house or flat.

As with a heat only boiler, a system boiler requires the installation of a hot water cylinder but they do not need a cold water tank to work. This makes them suitable choices for homeowners planning a loft conversion or for properties without a loft or very limited attic space.

The primary heating and hot water system components are built in to system boilers and you can use the control panel to set the times that you wish your heating and hot water to be available. Hot water is stored in the cylinder for use throughout the day, but if you don't set your timer, heat and hot water will not be available instantly.

A system boiler can supply multiple taps and showers simultaneously and is suitable for both large families and properties with more than one bathroom - combi boilers struggle to do this.

Is a Worcester Bosch Greenstar 4000 24kW system the right boiler for my house or flat?

Whether this Worcester Bosch Greenstar 4000 24kW System boiler is right for where you live depends on its size or "output" level. Size does not mean its physical dimensions - it means how powerful it is.

A boiler’s output is a measurement of the amount of power it can use to provide hot water to your taps and radiators. The higher its output rate, the more water it can heat.

If your new boiler’s output is too low, your hot water might not be as hot as you want it to be. If it's too high, you’ll be paying more for gas than you need to.

The output of the Worcester Bosch Greenstar 4000 24kW system boiler is 24 kW, so which types of property would this be appropriate for?

A boiler engineer would be likely to recommend that this Worcester Bosch Greenstar 4000 24kW System boiler is capable of providing heating and hot water to 10-15 radiators and two bathrooms and would therefore be most suitable for medium-sized homes and larger apartments.


The dimensions of the Worcester Bosch Greenstar 4000 24kW are

The Worcester Bosch Greenstar 4000 24kW is 724 mm tall, 400 mm wide, and 310 mm deep.

Is the Worcester Bosch Greenstar 4000 24kW condensing or non-condensing?

Is the Worcester Bosch Greenstar 4000 24kW system boiler good for the environment?

How we heat our homes and the damage we might be doing to the environment as a result has become an important point of concern to many homeowners worried about climate change.

In the largest cities of Britain, gas boilers are responsible for dangerous levels of atmospheric nitrogen dioxide emissions. In total, 14% of the UK’s greenhouse gases are produced by central heating systems.

Would choosing a Worcester Bosch Greenstar 4000 24kW system help in the fight against climate change? What do the performance statistics suggest?

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 24kW was awarded an efficiency rating of 94% with a SEDBUK band rating of "A".

The Energy Related Products (ERP) Directive's aim 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 4000 24kW is "TBC".

How long is the warranty period on the Worcester Bosch Greenstar 4000 24kW system boiler?

The parts and labour warranty on the Worcester Bosch Greenstar 4000 24kW lasts for 7 years.


Worcester Bosch Greenstar 4000 24kW Gas System boiler specifications

Powered by GasGas
LocationExternal
Efficiency rating94%
Band ratingA
P/L Warranty7 Years
Output in kW24 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 24kW boiler

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Worcester Bosch Greenstar 4000 24kW System Gas boiler

  1. Home
  2. Worcester Bosch Greenstar 4000 24kW
Plumbproud rating for this boiler
90.62%

Assessing factors including the system's running costs, its energy efficiency, the manufacturer’s guarantee, and its likely installed price, we scored this Worcester Bosch Greenstar 4000 24kW System boiler 90.62% on our internal PlumbProud grading system.

Fitted by an experienced Gas Safe PlumbProud engineer, the cost for this Worcester Bosch Greenstar 4000 24kW System boiler will be in the region of £2,200 on a standard, non-complicated installation.

Get a better understanding of installation costs for the Worcester Bosch Greenstar 4000 24kW 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
£2,200

Get your free quote

Worcester Bosch Greenstar 4000 24kW Gas System boiler specifications

Powered by GasGas
LocationExternal
Efficiency rating94%
Band ratingA
P/L Warranty7 Years
Output in kW24 kW
Height724 mm
Width400 mm
Depth310 mm
MountingWall
ERP HeatA

Worcester Bosch Greenstar 4000 24kW System Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar 4000 24kW a combi, system or regular boiler?

Looking for a gas system boiler for your flat or house? Then the Worcester Bosch Greenstar 4000 24kW may be an option you should consider.

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.

Should I install a Worcester Bosch Greenstar 4000 24kW system boiler in my home?

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 4000 24kW system is 24 kW, so which types of property would this Worcester Bosch Greenstar 4000 24kW System boiler be an appropriate choice for?

Most experienced Gas Safe boiler installers would suggest that the Worcester Bosch Greenstar 4000 24kW system boiler would be a suitable choice for installation in medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


What size is a Worcester Bosch Greenstar 4000 24kW boiler?

The Worcester Bosch Greenstar 4000 24kW measures 724 mm high and 400 mm wide by a depth of 310 mm.

Is the Worcester Bosch Greenstar 4000 24kW condensing or non-condensing?

Is the Worcester Bosch Greenstar 4000 24kW system an energy-efficient boiler?

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.

14% of the UK’s greenhouse gas production comes from central heating. In the bigger cities, gas boilers in particular are responsible for dangerous levels of nitrogen dioxide emissions.

Will choosing to install a Worcester Bosch Greenstar 4000 24kW system in your home help the environment? Let's review the figures.

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 4000 24kW was given an efficiency rating of 94% and a band rating of "A".

The ERP (Energy Related Products Directive) applies to all products that consume energy at any time in their lifetime, from manufacture to disposal and all points in between.

The intention of this European legislation is to encourage manufacturers to offer end users products that are better for the environment through the creation of fewer harmful gas emissions at all points of a product's life cycle.

The ERP rating for the Worcester Bosch Greenstar 4000 24kW is "A".

How long is the warranty period on the Worcester Bosch Greenstar 4000 24kW system boiler?

A parts and labour warranty of 7 years is included when you purchase the Worcester Bosch Greenstar 4000 24kW boiler through PlumbProud.


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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