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Worcester Bosch Greenstar I 30i boiler

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Plumbproud rating

90.57%

Worcester Bosch Greenstar i 30i Combi Gas boiler

According to our PlumbProud boiler quality scoring system, we rate this model 90.57%. We rank boilers using a number of different factors including price installed, manufacturer guarantees, energy efficiency, likely running costs, and more.

You should budget approximately £2,200 for the supply and installation of this Worcester Bosch Greenstar i 30i Combi boiler on a standard, non-complicated fit.

For advice on whether this Worcester Bosch Greenstar i 30i Combi boiler is suitable for your home or to receive a free quotation on theWorcester Bosch Worcester Bosch Greenstar I 30i, please call 01604 343053 to speak to one of our team. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


Installed price around

£2,200

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Worcester Bosch Greenstar i 30i Combi Gas boiler frequently asked questions

Worcester Bosch Greenstar I 30i - a combi boiler, system boiler or regular boiler?

The Worcester Bosch Greenstar I 30i may be worth considering if you are looking for a combi boiler for your house or flat.

Traditional boilers need one or more large tanks to work - one to heat and keep water warm for immediate use and the other to store water intended for heating later. Finding space for these large tanks is difficult in British residential property - remember that our houses and flats are among the smallest in the world. This is the problem that combi boilers were designed to solve when they were introduced in the 1970s.

Combi boilers don't need a tank - instead, they instantly heat water drawn from the mains using technology inside the boiler. This hot water is then distributed immediately to your taps or radiators on demand.

The biggest disadvantage to combi boilers is that they have a maximum capacity for heating water, meaning that they work best when only one point within a household wants hot water. For example, if someone is taking a shower and another person uses a hot water tap at the same time, the water pressure, volume and temperature to both points drops.

Should I install a Worcester Bosch Greenstar I 30i combi boiler in 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 30i combi boiler has an output level of 30 kW, so which types of property would it be appropriate for?

An experienced Gas Safe boiler installer would recommend that the Worcester Bosch Greenstar I 30i combi boiler would be an ideal installation option for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

If you are considering installing a combi boiler in your home, you need to consider the flow rate as well as the output rate.

The flow rate is the volume of water (measured in litres per minute) that your boiler can instantly heat up and send around the home. The more demand in your home for water at the same time (for example, two people taking showers in different bathrooms), the higher the flow rate you'll need.

However, the actual flow rate your boiler can deliver is also determined by your mains water pressure. If you choose a boiler with a flow rate of 16l/m but the mains water pressure is 12l/m, your boiler will only perform to 12l/m. This Worcester Bosch Greenstar i 30i Combi boiler's flow rate is 12 L/m.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.


The size of the Worcester Bosch Greenstar I 30i in millimetres

The Worcester Bosch Greenstar I 30i stands at 700 mm tall, 400 mm wide and 330 mm deep.

Worcester Bosch Greenstar I 30i – non-condensing or condensing?

The Worcester Bosch Greenstar I 30i is a condensing gas boiler - this is the type of boiler we recommend to most clients because they're better for the environment and they will save money on annual fuel bills.

A condensing boiler captures and recycles the warmth still present in both the flue exhaust gases and water vapour condensation created when gas is burned to provide your boiler with power.

This means it needs less gas to operate and it uses this extra energy to perform a number of tasks, including heating the colder water that comes back to the boiler from the radiators in your home.

Is the Worcester Bosch Greenstar I 30i combi an energy-efficient boiler?

Many homeowners are becoming increasingly concerned about how they heat their homes and the impact it has on climate change and other important environmental issues.

The heating of our homes accounts for 14% of the UK's greenhouse gas emissions. Especially in the big cities, gas boilers are responsible for dangerous levels of nitrogen dioxide emissions.

Will choosing a Worcester Bosch Greenstar I 30i combi boiler for your home be positive for the environment? Let's examine the figures.

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 30i was awarded an efficiency rating of "90.1%", equivalent to a "A" rating on the SEDBUK system.

The Energy Related Products (ERP) Directive is important European legislation that aims to limit energy use and harmful gas emissions during the manufacturing process, when the product is in use, and after it is disposed of.

For the Worcester Bosch Greenstar I 30i, the ERP Heat rating is "A" and the ERP Water rating is "A".

Does a Worcester Bosch Greenstar I 30i combi boiler come with a warranty period?

Parts and labour charges incurred for repairs made to your new Worcester Bosch Greenstar I 30i are covered by a 7 year warranty.


Worcester Bosch Greenstar i 30i Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating90.1%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW30 kW
Height700 mm
Width400 mm
Depth330 mm
MountingWall
Flow rate12 L/m
ERP HeatA
ERP WaterA

The top 10 rated Gas Combi boilers

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

1Vaillant ecoTEC Plus 82593.35%
2Vaillant ecoTEC Plus 83292.98%
3Worcester Bosch Greenstar 2000 25kW92.89%
4Viessmann Vitodens 050-W 29kW92.66%
5Vaillant ecoTEC Plus 83592.60%
6Worcester Bosch Greenstar CDi Compact 2892.57%
7Vaillant ecoFIT Pure 82592.39%
8Vaillant ecoTEC Plus 83892.16%
9Vaillant ecoTEC Exclusive IQ 83591.90%
10Vaillant ecoTEC Pro 2491.77%

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Worcester Bosch Greenstar I 30i boiler

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Worcester Bosch Greenstar i 30i Combi Gas boiler

  1. Home
  2. Worcester Bosch Greenstar i 30i
Plumbproud rating for this boiler
90.57%

We score this Worcester Bosch Greenstar i 30i Combi boiler as 90.57% on the PlumbProud quality scoring system. Our rating is based on various factors, including the installation price, the length of the manufacturer's warranty, and the expected energy efficiency and operating costs.

£2,200 is the amount you should budget to have this particular boiler installed on a straightforward installation.

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 30i boiler and offer professional advice and guidance on whether this Worcester Bosch Greenstar i 30i Combi boiler is the right choice for your home.


Installed price guideline
£2,200

Get your free quote

Worcester Bosch Greenstar i 30i Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating90.1%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW30 kW
Height700 mm
Width400 mm
Depth330 mm
MountingWall
Flow rate12 L/m
ERP HeatA
ERP WaterA

Worcester Bosch Greenstar i 30i Combi Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar I 30i a regular, combi or system boiler?

When looking for a combi boiler for your house or flat, the Worcester Bosch Greenstar I 30i might be a suitable option for you.

In older British homes, traditional boilers required you to find room for one or more storage tanks. One tank would keep hot water warm and the other stored cold water for later heating. Manufacturers introduced combi boilers to the UK in the 1970s so that homeowners could get the warmth and hot water they needed without having to sacrifice too much valuable space – remember that residential property in this country is among the smallest in the Western world.

Combi boilers deliver hot water to your radiators and taps using water they draw directly from the mains supply. As mains water travels through a combi boiler, the technology within it heats the cold water instantly and on demand. The hot water is then distributed throughout your house.

Combi boilers have one drawback, however: they can only heat a certain amount of water within a given time. For example, if someone uses the shower and another person uses the hot water tap at the same time, water pressure drops because water reaches each point differently.

Should I install a Worcester Bosch Greenstar I 30i combi boiler in my house or flat?

It's best to choose a boiler whose size or "output" is right for your home.

The more hot water and heat you want, the higher the output level of your boiler should be. Output is measured in kilowatts and it describes the maximum level of power your boiler has to heat water.

If your output level is too low, your boiler will not have the power it needs to get your water as hot as you want it, particularly when there's a lot of demand for it. Choose a boiler whose output level is too high and you'll have all the hot water you need but will be paying too much for it through higher gas bills.

Which types of property would this Worcester Bosch Greenstar i 30i Combi boiler be appropriate for given its output of 30 kW?

An experienced PlumbProud heating engineer would recommend that the most suitable type of property for a Worcester Bosch Greenstar I 30i combi would be medium-sized homes and larger apartments containing 10-15 radiators and providing hot water for two bathrooms.

Flow rates are important when choosing a combi boiler as well as output rates.

A combi boiler's flow rate (measured in litres per minute) describes how much water it can instantly heat then distribute to the taps and radiators in your home - you will need to factor this into your decision on a new combi boiler. This Worcester Bosch Greenstar i 30i Combi boiler's flow rate is 12 L/m.

If you have a lot of radiators and bathrooms in your home and there's lots of demand within your household for hot water at the same time (like morning or evening showers and baths), you'll need a boiler with a high flow rate.

However, it's not quite that simple. If your local mains water pressure is low, you're not going to gain any benefit from choosing a combi boiler with a high flow rate because that higher flow rate doesn't mean it can draw more water from the mains pipes.
When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.


The size of the Worcester Bosch Greenstar I 30i

The Worcester Bosch Greenstar I 30i is 700 mm [H] by 400 mm [W] by 330 mm [D] in size.

Is the Worcester Bosch Greenstar I 30i condensing or non-condensing?

Condensing gas boilers like the Worcester Bosch Greenstar I 30i are more energy-efficient and choosing one for your home will cut the amount you pay every year for your gas.

They do this by capturing the heat in water vapour condensation and in exhaust gases which would normally be expelled via the flue. They then recycle that heat, returning it to the system to, among other tasks, reheat colder water that is returning to your boiler from your radiators.

Is the Worcester Bosch Greenstar I 30i combi boiler an environmentally friendly choice?

With growing concern among the public about accelerating climate change, how we heat our homes and the impact this has on the environment has become a major topic of concern for many homeowners.

Approximately 14% of the UK's greenhouse gas production is caused by our central heating systems. The gas boilers in larger urban areas of Britain are mainly responsible for emissions of toxic nitrogen dioxide.

Is the Worcester Bosch Greenstar I 30i combi an environmentally friendly choice for your home? Let’s have a look at the figures.

All boilers manufactured in the UK from April 2018 must operate at a minimum level of energy efficiency of 92% ("A" rating on the SEDBUK scale). Before that, the minimum was 88% - boilers scoring 88/89% were given a SEDBUK "B" rating and 90% or above an "A" rating.

The energy efficiency score of a boiler indicates how much energy it uses and how much goes to waste when in use.

After its assessment, the Worcester Bosch Greenstar I 30i was given an efficiency rating of 90.1% and a SEDBUK grading of "A".

The ERP (or Energy Related Products Directive) is European legislation affecting products that consume energy throughout their lifetime.

The aim is to encourage companies to create environmentally friendlier products that reduce harmful gas emissions during manufacturing and when in use by the end client, right through to their eventual disposal.

In the case of the Worcester Bosch Greenstar I 30i, the ERP rating is "A" for heat and "A" for hot water production.

If the Worcester Bosch Greenstar I 30i breaks down, will I be covered by the warranty?

Parts and labour charges incurred for repairs made to your new Worcester Bosch Greenstar I 30i are covered by a 7 year warranty.


The top 10 rated Gas Combi boilers

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

1Vaillant ecoTEC Plus 82593.35%
2Vaillant ecoTEC Plus 83292.98%
3Worcester Bosch Greenstar 2000 25kW92.89%
4Viessmann Vitodens 050-W 29kW92.66%
5Vaillant ecoTEC Plus 83592.60%
6Worcester Bosch Greenstar CDi Compact 2892.57%
7Vaillant ecoFIT Pure 82592.39%
8Vaillant ecoTEC Plus 83892.16%
9Vaillant ecoTEC Exclusive IQ 83591.90%
10Vaillant ecoTEC Pro 2491.77%
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