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Worcester Bosch Greenstar CDi Compact 36 boiler

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Plumbproud rating

90.09%

Worcester Bosch Greenstar CDi Compact 36 Combi Gas boiler

We have determined a rating of 90.09% for this Worcester Bosch Greenstar CDi Compact 36 Combi boiler using the PlumbProud quality benchmarking system. Factors used to score a boiler include its energy performance, how much it costs to run, the installation price, and how long the manufacturer's guarantee lasts.

This Worcester Bosch Greenstar CDi Compact 36 Combi boiler will cost around £2,300 fitted through PlumbProud where there are no complications during the installation.

We recommend that you speak to our friendly advisors by calling 01604 343053 to seek professional advice on whether the Worcester Bosch Greenstar CDi Compact 36 boiler is right for your home. Our team can also provide you with a free quotation for this Worcester Bosch Greenstar CDi Compact 36 Combi boiler. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


Installed price around

£2,300

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Worcester Bosch Greenstar CDi Compact 36 Combi Gas boiler frequently asked questions

Worcester Bosch Greenstar CDi Compact 36 - a system boiler, regular boiler or combi boiler?

Looking for a gas combi boiler for your house or flat? If you are, the Worcester Bosch Greenstar CDi Compact 36 boiler may be worth considering.

The UK has some of the smallest homes in the Western world, which is partly why combi boilers were introduced in the 1970s. Traditional boilers require one or more large storage tanks which they use to either heat water and keep it warm or store water intended for heating later. These tanks took up a lot of space in people's homes.

Combi boilers save space because they don't require these tanks to operate. Instead, combis draw water direct from your mains supply then instantly heat and distribute it on demand.

The biggest disadvantage in using combi boilers is that they have a maximum capacity volume for heating water. While this may not be an issue in a small household, it could be for a larger household where there is higher demand for hot water. When more than one person is using the water, it is distributed between the two points, reducing the pressure and temperature at each point.

Is a Worcester Bosch Greenstar CDi Compact 36 combi boiler suitable for my house or apartment?

To determine that, we need to consider the size of the boiler. However, size doesn't refer to how big a boiler is - it means the size of its "output".

Your boiler’s output is a measurement of the power it has available to heat the volume of water required for your taps and radiators. The higher the output rate, the more water it can heat.

You need to be careful to select a boiler with the optimal level of output for your property though. That's because, if your boiler output is too low, your water and radiators will often not be as hot as you want them to be. If the output is too high, you’ll be paying more for gas than you need to.

The output of the Worcester Bosch Greenstar CDi Compact 36 combi is 36 kW, so which types of property would this Worcester Bosch Greenstar CDi Compact 36 Combi boiler be appropriate for?

Most experienced Gas Safe engineers would likely recommend that, at this level of output, this Worcester Bosch Greenstar CDi Compact 36 Combi boiler would be a suitable choice for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

As well as the output rate, you need to consider "flow rate" when choosing a combi boiler.

The flow rate describes how much water a combi boiler can draw from the mains, instantly heat, and then send to your radiators. Flow rates are measured in litres per second and this Worcester Bosch Greenstar CDi Compact 36 Combi boiler's flow rate is 15 L/m.

The water in your mains pipe also has its own flow rate - normally between 10 and 12l/m in most parts of Britain. This means that, if you choose a combi boiler with a flow rate of 17l/m where local water pressure is 11lm, it won't actually process more water because of the slower flow rate of the mains.

In addition, larger households with more than one bathroom, multiple radiators, and where family members may want to use hot water at the same time (like morning showers) may actually need a boiler with a higher flow rate than either the boiler or the local mains pipe.

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.


What size is the Worcester Bosch Greenstar CDi Compact 36 boiler?

The size of the Worcester Bosch Greenstar CDi Compact 36 boiler is 680 mm high, 390 mm wide, and 280 mm deep.

Is the Worcester Bosch Greenstar CDi Compact 36 non-condensing or condensing?

Condensing gas boilers like the Worcester Bosch Greenstar CDi Compact 36 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 CDi Compact 36 combi an energy-efficient boiler?

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.

14% of the total amount of greenhouse gases produced by the UK comes from the central heating systems we use. In some of Britain's biggest cities, gas boilers create dangerous levels of nitrogen dioxide in the atmosphere.

Will installing a Worcester Bosch Greenstar CDi Compact 36 combi be a positive contribution to the environment? Let's see what the experts say.

All boilers manufactured and supplied in the UK are assigned two energy efficiency ratings. By law, they must achieve a SEDBUK "A" rating subject to a minimum efficiency level of 92%. Prior to that, the minimum was 88% (88% and 89% are equivalent to a SEDBUK "B" grade and 90% and above an "A" grade).

The ratings awarded to the Worcester Bosch Greenstar CDi Compact 36 are 90.5% with a SEDBUK rating of "A".

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 CDi Compact 36, the ERP Heat rating is "A" and the ERP Water rating is "A".

If the Worcester Bosch Greenstar CDi Compact 36 combi boiler breaks down, am I covered?

The Worcester Bosch Greenstar CDi Compact 36 boiler is provided with a parts and labour warranty lasting 7 years.


Worcester Bosch Greenstar CDi Compact 36 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating90.5%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW36 kW
Height680 mm
Width390 mm
Depth280 mm
MountingWall
Flow rate15 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 CDi Compact 36 Combi Gas boiler

  1. Home
  2. Worcester Bosch Greenstar CDi Compact 36
Plumbproud rating for this boiler
90.09%

Using the PlumbProud boiler quality scoring system, we have rated this model at 90.09%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

We estimate that, on a standard, non-complicated installation, the supply and fitting charge for this Worcester Bosch Greenstar CDi Compact 36 Combi boiler will be around £2,300.

To get a free quote for the installation of the Worcester Bosch Greenstar CDi Compact 36 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
£2,300

Get your free quote

Worcester Bosch Greenstar CDi Compact 36 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating90.5%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW36 kW
Height680 mm
Width390 mm
Depth280 mm
MountingWall
Flow rate15 L/m
ERP HeatA
ERP WaterA

Worcester Bosch Greenstar CDi Compact 36 Combi Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar CDi Compact 36 a regular, combi or system boiler?

If you’re looking for a combi boiler for your house or flat, you may wish to the consider the Worcester Bosch Greenstar CDi Compact 36.

Combi boilers were introduced by manufacturers in the 1970s to offer British homeowners a way to cheaply and reliably heat their homes and have hot water without taking up too much space. Previously, most boilers had one or more storage tanks, which either heated water and kept it warm or held water to be heated later.

With combi boilers, there is no need to find space for large tanks around your home as the hot water needed for your radiators and taps is available on demand. Combi boilers do this by drawing water from your mains supply, heating it instantly whenever you need it and then distributing it to where it's needed in the home.

The major disadvantage to combi boilers is that they have a maximum capacity for heating water. In a larger household, water pressure, volume and temperature will drop if two or more people are trying to use hot water at the same time.

Should I install a Worcester Bosch Greenstar CDi Compact 36 combi boiler in my house or apartment?

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

Your boiler’s output is a measurement of the power it has available to it to heat the water you need for your radiators or for when you turn on a tap, bath or shower. A higher output rate means it has more power and can heat more water.

It's important to choose an output that matches the demand for water in your home because if your boiler has too low an output, you'll often find only lukewarm water comes out of your taps or heats your radiators. If it’s too high, you’ll be paying more for your gas than you need to.

The Worcester Bosch Greenstar CDi Compact 36 combi has an output of 36 kW, so which types of property would this Worcester Bosch Greenstar CDi Compact 36 Combi boiler be appropriate for?

An experienced Gas Safe boiler installer would recommend that this Worcester Bosch Greenstar CDi Compact 36 Combi boiler would be a suitable installation choice for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

Homeowners considering fitting a combi boiler to their home need to consider flow rates as well as output rates.

The flow rate is a measurement of the volume of water a combi can instantly heat and send to the taps and radiators around your home. The higher the likely demand for hot water in your home, the higher your combi's flow rate should be. This Worcester Bosch Greenstar CDi Compact 36 Combi boiler's flow rate is 15 L/m.

Unlike heat only or system boilers, combi boilers don't store hot water in a tank for later use - instead, they draw it directly from the mains. This means that the volume of water your boiler can actually process is constrained by the flow rate of water in the mains pipe.

So, if you choose a combi boiler with a 15l/m flow rate but the flow rate in your mains pipe is 12l/m, the combi boiler's working flow rate is also 12l/m.

Combi boilers are also not always the correct choice for homes with multiple bathrooms, a high number of radiators, or where more than one family member will want to use hot water at the same time.

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.


What are the dimensions of the Worcester Bosch Greenstar CDi Compact 36 boiler?

The Worcester Bosch Greenstar CDi Compact 36 measures 680 mm in height by 390 mm in width by 280 mm in depth.

Is the Worcester Bosch Greenstar CDi Compact 36 condensing or non-condensing?

We recommend the Worcester Bosch Greenstar CDi Compact 36 as it is a modern condensing gas boiler from a trusted manufacturer with a reputation for supplying highly energy-efficient boilers.

Condensing boilers capture the heat still present in water vapour condensation and flue exhaust gases and recycle it back into the heating system. With this extra energy, your boiler can, among other tasks, reheat colder water coming back from your radiators without having to burn more gas.

Condensing boilers significantly reduce your quarterly gas costs and they're better for the environment.

Is choosing the Worcester Bosch Greenstar CDi Compact 36 combi boiler environmentally friendly?

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.

In the UK, central heating is responsible for 14% of greenhouse gas production. Domestic gas boilers emit large quantities of nitrogen dioxide in British cities.

Would installing a Worcester Bosch Greenstar CDi Compact 36 combi boiler in your home help combat climate change? What do the figures suggest?

Boilers manufactured after April 2018 in the UK must achieve an "A" on the SEDBUK grading system as well as score a minimum of 92% on a separate energy efficiency test. Prior to that, the minimum was 88% - boilers rated at 88% and 89% were given a “B” rating (90% and higher were given an "A").

An energy efficiency rating describes how much energy the boiler uses and how much it wastes when in use.

The Worcester Bosch Greenstar CDi Compact 36 was awarded an efficiency rating of 90.5% with a SEDBUK grading of "A".

The ERP (or Energy Related Products Directive) is a European regulation governing products which require energy to operate throughout their lives and encourages manufacturers to create products that are more environmentally friendly.

The legislation is designed to reduce the potential for harmful gas emissions during manufacturing and actual use right through to the point of final disposal.

For the Worcester Bosch Greenstar CDi Compact 36, the ERP rating is "A" for heat and "A" for hot water production.

What is the length of the warranty on the Worcester Bosch Greenstar CDi Compact 36?

The parts and labour warranty offered with this Worcester Bosch Greenstar CDi Compact 36 Combi boiler covers you for 7 years.


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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