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Worcester Bosch Greenstar I System 12i boiler

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  2. Worcester Bosch Greenstar i System 12i
Plumbproud rating

91.98%

Worcester Bosch Greenstar i System 12i System Gas boiler

On the PlumbProud boiler quality benchmark scoring system, we have rated this Worcester Bosch Greenstar i System 12i System boiler at 91.98%. Ratings are determined by considering a number of important factors including the energy efficiency, price installed, warranty length, and running costs of the boiler.

On a straightforward installation of this make of boiler using PlumbProud, you should expect to budget around £2,100.

Wondering if the Worcester Bosch Greenstar I System 12i is the right boiler for your home? Then speak to a professional here by getting in touch via email or call us on 01604 343053. You can also get a free quote by entering your postcode in the box on the page.


Installed price around

£2,100

GET A COMPETITIVE BOILER QUOTE

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Worcester Bosch Greenstar i System 12i System Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar I System 12i boiler a combi, regular or a system boiler?

If you’re looking for a system boiler for your house or flat, then the Worcester Bosch Greenstar I System 12i is one you may wish to consider.

System boilers are very popular for properties with limited or no loft space or when homeowners want to keep the space for a loft conversion. This is because, unlike heat only boilers, they don’t require a cold-water tank - however, system boilers do need a hot water cylinder (often installed in an airing or landing cupboard).

Instead of the traditional cold-water tanks, system boilers use their built-in circulating pumps to heat the water needed for your taps and radiators. This also makes them an easier choice for engineers to install as there is one less large component to find space for and fit.

Like a regular boiler, you need to use a control panel to control a system boiler. Set the times when you want central heating and hot water to be available, such as in the morning when there might be greater demand for showers, and it will be there. Although hot water is not available on-demand like with a combi boiler, once the water has been heated it will stay in the hot water cylinder until it’s used up.

Is a Worcester Bosch Greenstar I System 12i system the right boiler for my house or flat?

Whether this Worcester Bosch Greenstar i System 12i System boiler is right for where you live depends on its size or "output" level. Size does not mean its physical dimensions, however - it means how powerful it is.

Measured in kilowatts, a boiler's output level is an indication of the amount of power it has available to it to heat the water coming from your taps and for warming your radiators. The greater the output level, the more water it can heat.

If you choose a boiler whose output level is too low, you'll often find that the water is not as hot as you want it to be. If you choose a boiler whose level is too high, you'll be paying higher gas bills than you need to for years to come.

The output of the Worcester Bosch Greenstar I System 12i system is 12 kW, so which types of property is this Worcester Bosch Greenstar i System 12i System boiler appropriate for?

An experienced heating engineer would say that this Worcester Bosch Greenstar i System 12i System boiler's level of output makes it a suitable installation for smaller homes and apartments with up to 10 radiators and one bathroom.


How large is the Worcester Bosch Greenstar I System 12i?

The Worcester Bosch Greenstar I System 12i boiler measures 710 mm [H] x 400 mm [W] x 330 mm [D] in size.

Is this Worcester Bosch boiler condensing or non-condensing?

Condensing gas boilers like the Worcester Bosch Greenstar I System 12i are environmentally friendlier and cheaper to run so, if possible, we strongly recommend that you choose this or one of the very latest models.

Condensing boilers are much more efficient and economical to run because they contain a secondary heat exchanger that captures and recycles the warmth still present in the flue exhaust gases and the water vapour condensation for re-use, meaning that they use less gas to run.

How does the Worcester Bosch Greenstar I System 12i system boiler rate environmentally?

Concern for the environment is causing more and more homeowners to think about how they heat their homes and its impact on 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.

Will you be helping the environment if you decide to install a Worcester Bosch Greenstar I System 12i system in your home? Let’s look at the figures.

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 12i has been assigned an efficiency rating of 94% with a SEDBUK rating of "A".

The Energy Related Products Directive, also known as ERP, is European legislation that intends to reduce energy consumption related to products right from their initial manufacturing process through to eventual final disposal.

The purpose of the directive is to encourage manufacturers to create new products that are kinder to the environment and which result in lower overall harmful gas emissions through a product's entire life cycle.

The Worcester Bosch Greenstar I System 12i has a rating of "A".

How long is the warranty offered by the manufacturer for the Worcester Bosch Greenstar I System 12i boiler?

Parts and labour charges incurred during a repair on the Worcester Bosch Worcester Bosch Greenstar I System 12i boiler are covered by a 7 year warranty.


Worcester Bosch Greenstar i System 12i Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW12 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 12i System Gas boiler

  1. Home
  2. Worcester Bosch Greenstar i System 12i
Plumbproud rating for this boiler
91.98%

We scored this Worcester Bosch Greenstar i System 12i System boiler at 91.98% on our internal benchmarking system. To determine a score, we take into consideration a number of different factors including the boiler's energy efficiency, installed price, likely running costs, and the length of the manufacturer's warranty.

We estimate that this Worcester Bosch Greenstar i System 12i System boiler will cost £2,100 fully installed through PlumbProud provided that the fit is straightforward.

To get a free quote for the installation of the Worcester Bosch Greenstar I System 12i boiler in your home, simply enter your postcode in the box provided on this page. You can also find out whether this is the right boiler for your home by clicking to email our installation team or by calling us on 01604 343053.


Installed price guideline
£2,100

Get your free quote

Worcester Bosch Greenstar i System 12i Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW12 kW
Height710 mm
Width400 mm
Depth330 mm
MountingWall
ERP HeatA

Worcester Bosch Greenstar i System 12i System Gas boiler frequently asked questions

Is this Worcester Bosch Greenstar I System 12i boiler a combi, system or regular boiler?

If you are considering installing a system boiler in your house or flat, then the Worcester Bosch Greenstar I System 12i boiler is certainly worth investigating.

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.

Would the Worcester Bosch Greenstar I System 12i system be a suitable choice of boiler for my house or flat?

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

The amount of hot water you get from showers, bathrooms, and sinks and heat from your radiators depends on your boiler's output (measured in kilowatts). The higher the level of output, the better your home will be heated and you can be more certain that the water from your taps will be as hot as you want.

However, you must be careful. You might not get the hot water you want if your boiler output is too low. If it's too high, you'll be paying more than you need to for gas.

With the Worcester Bosch Greenstar I System 12i system's output at 12 kW, which types of property would this Worcester Bosch Greenstar i System 12i System boiler be most appropriate for?

Most experienced boiler engineers would recommend this Worcester Bosch Greenstar i System 12i System boiler as a suitable option for smaller homes and apartments with no more than up to 10 radiators and one bathroom.


Making space for the Worcester Bosch Greenstar I System 12i

The dimensions of the Worcester Bosch Greenstar I System 12i are 710 mm [H] x 400 mm [W] x 330 mm [D].

Worcester Bosch Greenstar I System 12i – condensing or non-condensing?

Condensing gas boilers like the Worcester Bosch Greenstar I System 12i are environmentally friendlier and cheaper to run so, if possible, we strongly recommend that you choose this or one of the very latest models.

Condensing boilers are much more efficient and economical to run because they contain a secondary heat exchanger that captures and recycles the warmth still present in the flue exhaust gases and the water vapour condensation for re-use, meaning that they use less gas to run.

Is the Worcester Bosch Greenstar I System 12i system boiler an environmentally friendly choice?

With more and more of us concerned about environmental issues and climate change, how we heat our homes has become an important issue to many homeowners.

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.

Would choosing a Worcester Bosch Greenstar I System 12i system help the environment? Let’s see what the performance figures suggest.

An energy efficiency rating of 92% or above is a legal requirement for all boilers manufactured and installed in the UK today. 92% is equivalent to a low-to-middle "A" grade on the "Seasonal Efficiency of Domestic Boilers" (SEDBUK) scale.

Energy efficiency measures how much energy a boiler uses and wastes in the course of its normal operation. The lower the waste, the lower your gas bills.

The Worcester Bosch Greenstar I System 12i was awarded an efficiency rating of "94%", equivalent to a "A" rating on the SEDBUK system.

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 I System 12i is "A".

Does a Worcester Bosch Greenstar I System 12i system boiler come with a warranty period?

The parts and labour warranty offered with this Worcester Bosch Greenstar i System 12i 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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