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Worcester Bosch Greenstar I System 18i boiler

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Plumbproud rating

91.13%

Worcester Bosch Greenstar i System 18i System Gas boiler

Our PlumbProud quality scoring system uses many different factors, such as price installed, manufacturer guarantees, energy efficiency and the likely cost of running, among others, to determine a boiler's value for money rating. This Worcester Bosch Greenstar i System 18i System boiler scores 91.13%.

We would expect that, unless there are complications during fitting, this Worcester Bosch Greenstar i System 18i System boiler would cost £2,200 supplied and professionally installed through PlumbProud.

If you would like to get in touch with us for a free quote and professional guidance and advice on whether the Worcester Bosch Greenstar I System 18i is the right choice for your home, you can do so by entering your postcode in the quote boxes on this page, calling us on 01604 343053 or you can click here to email us.


Installed price around

£2,200

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Worcester Bosch Greenstar i System 18i System Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar I System 18i a system boiler, a combi boiler or a regular boiler?

Looking for a gas system boiler for your house or flat? If you are, the Worcester Bosch Greenstar I System 18i boiler may be worth considering.

Like regular boilers, system boilers have a control panel that you use to program the times of the day when you want hot water to be available or the central heating to come on, such as in the morning when several people will be having showers or baths.

Once the water is heated, it is stored and kept warm in a hot water cylinder during the hours you've programmed. Hot water cylinders are often installed in an airing or landing cupboard and they contain built-in circulating pumps whose job is to heat water drawn from the mains.

System boilers do not need a cold-water tank like heat only boilers, making them a popular choice for homeowners who want to save space and those who are considering a loft conversion in the future. They're also easier for heating engineers to install, as they require one less large part. Instead, they use built-in circulating pumps.

Should I install a Worcester Bosch Greenstar I System 18i system boiler in 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 I System 18i system is 18 kW, so which types of property would this Worcester Bosch Greenstar i System 18i System boiler be an appropriate choice for?

A Gas Safe boiler installer would recommend that this Worcester Bosch Greenstar i System 18i System boiler would provide adequate heating and hot water for smaller homes and apartments with up to up to 10 radiators and one bathroom.


The size of the Worcester Bosch Greenstar I System 18i in millimetres

Worcester Bosch’s Greenstar I System 18i is 710 mm tall, 400 mm wide, and 330 mm deep.

Is the Worcester Bosch Greenstar I System 18i non-condensing or condensing?

Condensing gas boilers like the Worcester Bosch Greenstar I System 18i 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 system Worcester Bosch Greenstar I System 18i boiler energy efficient?

How we heat our homes and the effect that has on climate change has become important to many homeowners worried about the environment.

As much as 14% of the UK’s greenhouse gas production derives from our domestic central heating systems. Gas boilers are responsible for dangerous levels of nitrogen dioxide emissions in Britain's largest cities.

Will choosing to install a Worcester Bosch Greenstar I System 18i system in your home help the environment? Let's review the figures.

The Worcester Bosch Greenstar I System 18i has been awarded an efficiency rating of 94% and a SEDBUK band rating of "A".

In the UK, all boilers manufactured and supplied must have an energy efficiency rating of at least 92% or a SEDBUK "A" grade. Until April 2018, the minimum rating was 88% (88% and 89% are equivalent to a SEDBUK "B" rating and anything higher is rated "A").

A boiler's energy efficiency rating describes the amount of energy it uses and wastes when in normal operation.

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 18i has a rating of "A".

How long is the warranty period on the Worcester Bosch Greenstar I System 18i system boiler?

The parts and labour warranty on the Worcester Bosch Greenstar I System 18i covers all repair-related costs for 7 years while the heat exchange warranty covers you for [Heat Exchange Warranty] years.


Worcester Bosch Greenstar i System 18i Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW18 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%

Combi boilers

Choose from the UK’s biggest range of combis

Heat only boilers

The ideal boiler perfect for the largest homes

System boilers

Ideal for 3+ bedroom, 2+ bathroom homes

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Worcester Bosch Greenstar I System 18i boiler

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Worcester Bosch Greenstar i System 18i System Gas boiler

  1. Home
  2. Worcester Bosch Greenstar i System 18i
Plumbproud rating for this boiler
91.13%

Using the PlumbProud boiler quality scoring system, we have rated this model at 91.13%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

You should budget approximately £2,200 for the supply and installation of this Worcester Bosch Greenstar i System 18i System boiler on a standard, non-complicated fit.

To contact us, please enter your postcode in the quote boxes on this page, click here to email us, or give us a call on 01604 343053. We can provide you with a free quote on the Worcester Bosch Greenstar I System 18i boiler and offer professional advice and guidance on whether this Worcester Bosch Greenstar i System 18i System boiler is the right choice for your home.


Installed price guideline
£2,200

Get your free quote

Worcester Bosch Greenstar i System 18i Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW18 kW
Height710 mm
Width400 mm
Depth330 mm
MountingWall
ERP HeatA

Worcester Bosch Greenstar i System 18i System Gas boiler frequently asked questions

Worcester Bosch Greenstar I System 18i - a regular, combi or system boiler?

The Worcester Bosch Greenstar I System 18i may be worth considering if you are looking for a system boiler for your house or flat.

System boilers need a hot water cylinder to work - normally fitted inside an airing or landing cupboard or similar spot. Unlike heat only boilers, they do not require a separate cold water tank, making them a more suitable choice if you have no loft, lack space in the attic, or are planning to do a loft conversion.

These boilers distribute hot water around your home to your taps and radiators using (often built-in) circulating pumps and they're easier to install as there is one less component (the water tank) to find room for. A system boiler needs to be programmed to tell it what times you want heat and hot water - unlike combi boilers, they don't provide hot water on demand.

Is the Worcester Bosch Greenstar I System 18i system boiler from the Greenstar I System range a suitable choice for my house or flat?

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 18i system boiler has an output level of 18 kW, so which types of property would it be appropriate for?

Most Gas Safe engineers would suggest that the most suitable type of property for installing a Worcester Bosch Greenstar I System 18i system boiler would be smaller homes and apartments with up to 10 radiators and one bathroom.


Dimensions of the Worcester Bosch Greenstar I System 18i boiler

The measurements of the Worcester Bosch Greenstar I System 18i are 710 mm by 400 mm by 330 mm.

Is the Worcester Bosch Greenstar I System 18i condensing or non-condensing?

We strongly recommend that you choose a condensing boiler like the Worcester Bosch Greenstar I System 18i - the technology is improving every year so the newer the boiler, the better.

A condensing boiler captures and recycles the warmth still present in flue exhaust gases and water vapour condensation into heat, allowing it to perform more efficiently on tasks like heating the colder water returning from your radiators.

They also offer significant annual savings on household gas bills as well as being more environmentally friendly.

Is the Worcester Bosch Greenstar I System 18i system rated as environmentally friendly?

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.

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.

If you would like your next boiler to help in the fight against climate change, would the Worcester Bosch Greenstar I System 18i system be a suitable choice?

Boilers manufactured or supplied to UK domestic properties must achieve a legal minimum energy efficiency rating of 92% (equivalent to a good "A" grade using the SEDBUK scale). Prior to this, the minimum was 88% (88% and 89% are a "B" SEDBUK grade and anything 90% or above is an "A" grade).

The energy efficiency rating of a boiler refers to the amount of energy it uses to perform its everyday functions as well as the amount of energy it wastes.

The Worcester Bosch Greenstar I System 18i has been given a rating of 94% for energy efficiency, equivalent to a SEDBUK "A" rating.

All products that consume energy throughout their lifespan must comply with the Energy Related Products (ERP) Directive.

Companies are legally obliged to reduce harmful gas emissions at all stages of a product's life cycle, from initial manufacturing right through to final disposal as well as when the product is in actual use.

The Worcester Bosch Greenstar I System 18i scores "A".

Will I be covered if the Worcester Bosch Greenstar I System 18i system breaks down?

Parts and labour charges incurred during a repair on the Worcester Bosch Worcester Bosch Greenstar I System 18i boiler are covered by a 7 year warranty.


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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