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Worcester Bosch Greenstar I System 9i boiler

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Plumbproud rating

92.89%

Worcester Bosch Greenstar i System 9i System Gas boiler

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 i System 9i System boiler 92.89% on our internal PlumbProud grading system.

This Worcester Bosch Greenstar i System 9i System boiler will cost approximately £2,000 supplied and fully installed through PlumbProud assuming that there are no unexpected complications during the fitting.

Get a better understanding of installation costs for the Worcester Bosch Greenstar I System 9i 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 around

£2,000

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Worcester Bosch Greenstar i System 9i System Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar I System 9i boiler a standard, combi or system model?

You may wish to consider installing the Worcester Bosch Greenstar I System 9i if you are looking for a system boiler for your house or flat.

A system boiler needs a hot water cylinder to work but it does not require a cold water tank, unlike with heat only boilers. This makes system boilers suitable for properties that lack loft space (or have no loft at all) or where a loft conversion is planned. The cylinder stores hot water for use throughout the day and water can be distributed to more than one tap or shower simultaneously without a loss of pressure or temperature (something combi boilers really struggle with).

System boilers are generally found in larger homes or properties housing large families. System boilers are easier to install than heat only boilers because their major components, including the circulation pump, are built-in and, of course, no cold water tank is needed.

With a system boiler, you use the control panel to set times for when you want the heating and hot water to be available but, unlike combi boilers, they cannot deliver hot water instantly. If you don't set your timer, you will have to wait for the water to heat up.

Should I choose a Worcester Bosch Greenstar I System 9i system boiler for my house or flat?

Whether this Worcester Bosch Greenstar i System 9i 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 I System 9i system boiler is 9 kW, so which types of property would this be appropriate for?

A PlumbProud heating engineer would recommend that this Worcester Bosch Greenstar i System 9i System boiler is suitable for smaller homes and apartments with up to 10 radiators and one bathroom.


Making space for the Worcester Bosch Greenstar I System 9i

The Worcester Bosch Greenstar I System 9i is 710 mm [H] by 400 mm [W] by 330 mm [D] in size.

Is the Worcester Bosch Greenstar I System 9i condensing or non-condensing?

The Worcester Bosch Greenstar I System 9i is a condensing gas boiler - we strongly recommend that you choose one of the latest condensing models if possible.

With a condensing boiler, you save money on your gas bills because your boiler captures and recycles the heat present in the flue exhaust gases and water vapour condensation for re-use, meaning they operate far more economically and efficiently.

Is the Worcester Bosch Greenstar I System 9i system boiler good for the environment?

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.

With central heating being responsible for 14% of greenhouse gas emissions in the UK, your choice of boiler matters. Gas boilers are also responsible for the significant atmospheric volumes of dangerous nitrogen dioxide emissions in larger British cities.

Let's take a closer look at whether installing a Worcester Bosch Greenstar I System 9i system would be a good choice for the environment.

Boilers manufactured in the UK must be tested and, by law, achieve an energy efficiency rating of 92% or above, equivalent to a SEDBUK "A" grade. Most boilers achieve an "A" rating meaning they are at least 88% efficient.

The energy efficiency of a boiler indicates the amount of energy it uses (and wastes) during operation.

The Worcester Bosch Greenstar I System 9i has been assigned an efficiency rating of 93% with a SEDBUK rating of "A".

The Energy Related Products (ERP) Directive is a European directive which applies to all products that consume energy over their lifetime.

It encourages companies to create products that are environmentally friendlier at all life cycle stages, including initial manufacturing and end use right through to final disposal, with the aim of reducing harmful gas emissions.

The Worcester Bosch Greenstar I System 9i is rated "A".

How many years' warranty does the Worcester Bosch Greenstar I System 9i system come with?

The Worcester Bosch Greenstar I System 9i boiler has a warranty covering parts and labour costs for up to 7 years after installation.


Worcester Bosch Greenstar i System 9i Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating93%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW9 kW
Height710 mm
Width400 mm
Depth330 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 I System 9i boiler

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Worcester Bosch Greenstar i System 9i System Gas boiler

  1. Home
  2. Worcester Bosch Greenstar i System 9i
Plumbproud rating for this boiler
92.89%

We have awarded this Worcester Bosch Greenstar i System 9i System boiler a rating of 92.89% in our boiler quality benchmark tests. To determine a score for each boiler, we factor in several different points of comparison including energy efficiency, manufacturer guarantees, estimated running costs, price and more.

You should budget around £2,000 for the supply and installation of this Worcester Bosch Greenstar i System 9i System boiler by PlumbProud.

We recommend that you speak to our friendly advisors by calling 01604 343053 to seek professional advice on whether the Worcester Bosch Greenstar I System 9i boiler is right for your home. Our team can also provide you with a free quotation for this Worcester Bosch Greenstar i System 9i System boiler. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


Installed price guideline
£2,000

Get your free quote

Worcester Bosch Greenstar i System 9i Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating93%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW9 kW
Height710 mm
Width400 mm
Depth330 mm
MountingWall
ERP HeatA

Worcester Bosch Greenstar i System 9i System Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar I System 9i boiler a standard, combi or system model?

If you’re looking for a system boiler for your house or flat, then the Worcester Bosch Greenstar I System 9i is one you may wish to consider.

For homes that have a higher-than-average demand for hot water and heating and for larger properties, system boilers are a more suitable option than the more popular combi boilers.

Combi boilers heat water on demand but the amount of water they can actually deliver to taps is determined by the mains water pressure, flow rate and power. System boilers instead use a hot water cylinder that stores and keeps water hot throughout the day. As long as you remember to program the times you want hot water and the cylinder still has water left in it, you should have hot water whenever you need it.

And, unlike heat only boilers that also require a cold water storage tank to work (normally fitted in the loft), system boilers don't, meaning they're quicker, easier and cheaper to install.

Is a Worcester Bosch Greenstar I System 9i system boiler suitable for my apartment or house?

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

The output rate tells you how much energy your boiler has to use to provide you and your family with hot water and central heating. A higher output rate means that it can heat greater volumes of water.

Please be aware, though - if you choose a boiler whose output is too low, the water in your radiators and coming from your taps may not be warm enough. Conversely, if you choose a boiler with too high an output, you'll pay more for gas than is necessary.

The Worcester Bosch Greenstar I System 9i system boiler has an output level of 9 kW, so which types of property would it be appropriate for?

An experienced PlumbProud Gas Safe engineer would almost certainly recommend that this Worcester Bosch Greenstar i System 9i System boiler would be most suitable for smaller homes and apartments with up to 10 radiators and one bathroom.


What size is the Worcester Bosch Greenstar I System 9i boiler?

The Worcester Bosch Greenstar I System 9i boiler is 710 mm high, 400 mm wide, and 330 mm deep.

Is this Worcester Bosch boiler non-condensing or condensing?

The Worcester Bosch Greenstar I System 9i is a condensing boiler – we recommend to all clients that they choose the very latest condensing boilers because their efficiency continues to improve year after year.

Condensing boilers recycle heat from both water vapour condensation and flue exhaust gases via a secondary heat exchanger. With this heat, it performs other tasks like warming up colder water returning from your radiator without having to use more gas.

You will save money on your gas bills every year by choosing a condensing boiler as well as benefitting the environment.

Does the Worcester Bosch Greenstar I System 9i system protect the environment?

The effects of climate change on the environment are leading many homeowners to question the damage they might be doing by the way they heat their homes.

The power we need for our central heating systems accounts for around 14% of the UK’s greenhouse gas production. There are often dangerous levels of ambient nitrogen dioxide gases in the atmospheres of British cities because of our use of gas boilers.

Do the available figures suggest that installing the Worcester Bosch Greenstar I System 9i system in your property would be an environmentally friendly choice?

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 I System 9i was awarded an efficiency rating of 93% with a SEDBUK band rating of "A".

The Energy Related Products Directive (ERP) was introduced in 2015 and applies to all products that consume energy throughout their lifetime, including during the manufacturing process and at the point of final disposal.

The purpose of the ERP is to ensure that companies create products that are kinder to the environment by reducing both the energy they use and the harmful emissions they produce.

The Worcester Bosch Greenstar I System 9i has an ERP rating of "A".

How long is the warranty period on the Worcester Bosch Greenstar I System 9i system boiler?

The Worcester Bosch Greenstar I System 9i is covered by a parts and labour warranty of 7 years following installation.


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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