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Worcester Bosch Greenstar 8000 Life 35kW boiler

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Plumbproud rating

90.88%

Worcester Bosch Greenstar 8000 Life 35kW Combi Gas boiler

We score this Worcester Bosch Greenstar 8000 Life 35kW Combi boiler as 90.88% 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.

This Worcester Bosch Greenstar 8000 Life 35kW Combi boiler will cost approximately £2,400 supplied and fully installed through PlumbProud assuming that there are no unexpected complications during the fitting.

Get a free quote on the Worcester Bosch Greenstar 8000 Life 35kW boiler and advice on whether this is the right choice for your home by entering your postcode in the quote box on this page, clicking here to email us, or giving us a call at 01604 343053.


Installed price around

£2,400

GET A COMPETITIVE BOILER QUOTE

Please enter your postcode below to get a personalised quotation for the perfect boiler for your home

Worcester Bosch Greenstar 8000 Life 35kW Combi Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar 8000 Life 35kW a system, regular or combi boiler?

If you’re looking for a combi boiler for your house or flat, then the Worcester Bosch Greenstar 8000 Life 35kW is one you may wish to consider.

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 the Worcester Bosch Greenstar 8000 Life 35kW combi boiler a suitable choice for my property?

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.

Your boiler's output indicates the maximum amount of power available to it to heat the water you need to warm your radiators or when you want hot water from your taps. A higher output rate means that your boiler is capable of heating greater volumes of water.

If a boiler's output rate is too low, you'll often find that the water is not as hot as you want it to be. Too high, however, and you'll end up paying more for your gas than you should be.

The Worcester Bosch Greenstar 8000 Life 35kW combi boiler has an output rate of 35 kW, so which types of property would this be suitable for?

A PlumbProud heating engineer would recommend that this Worcester Bosch Greenstar 8000 Life 35kW Combi boiler be installed in 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 8000 Life 35kW Combi boiler's flow rate is 14 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 are the dimensions of the Worcester Bosch Greenstar 8000 Life 35kW boiler?

The measurements of the Worcester Bosch Greenstar 8000 Life 35kW are 825 mm by 440 mm by 365 mm.

Worcester Bosch Greenstar 8000 Life 35kW – condensing or non-condensing?

We recommend that you choose a condensing boiler wherever possible like the Worcester Bosch Greenstar 8000 Life 35kW - try to go for the latest model, if possible, to take advantage of improving technology.

Condensing boilers capture and recycle the warmth still present in the water vapour condensation and in flue exhaust emissions created by burning gas to make them more efficient and economical to run.

You will save money on your gas bills too, plus condensing boilers are friendlier to the environment.

Is the Worcester Bosch Greenstar 8000 Life 35kW combi an energy-efficient boiler?

With environmental issues in the spotlight, more and more homeowners are becoming concerned about how they heat their homes and how much they're contributing towards combatting climate change.

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.

Do the available figures suggest that installing the Worcester Bosch Greenstar 8000 Life 35kW combi in your property would be an environmentally friendly choice?

Under current UK law, all boilers must achieve a minimum energy efficiency level of 92% (a low to good SEDBUK "A" rating). The minimum level was raised from its previous 88% in April 2018.

Energy efficiency scores are intended to inform consumers of the amount of energy used and wasted when a boiler is in normal operation.

The Worcester Bosch Greenstar 8000 Life 35kW was awarded an efficiency rating of 94% with a SEDBUK band rating of "A".

The ERP (Energy Related Products Directive) is European legislation that aims to reduce the use of energy at all points during a product's life, from the point of manufacture to when it's in active use right through to final disposal.

The regulation aims is to encourage manufacturers to create products that are more environmentally friendly and which reduce the harmful gas emissions associated with those products.

The ERP gradings for the Worcester Bosch Greenstar 8000 Life 35kW are "A" for heat and "A" for hot water.

Does the Worcester Bosch Greenstar 8000 Life 35kW combi boiler come with a warranty?

The Worcester Bosch Greenstar 8000 Life 35kW boiler comes with a parts and labour warranty lasting 8 years.


Worcester Bosch Greenstar 8000 Life 35kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?Yes
P/L Warranty8 Years
Output in kW35 kW
Height825 mm
Width440 mm
Depth365 mm
MountingWall
Flow rate14 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 8000 Life 35kW boiler

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Worcester Bosch Greenstar 8000 Life 35kW Combi Gas boiler

  1. Home
  2. Worcester Bosch Greenstar 8000 Life 35kW
Plumbproud rating for this boiler
90.88%

We score each boiler we sell by considering a number of different factors including price installed, manufacturer guarantees, energy efficiency, the likely cost of running, and more. For this Worcester Bosch Greenstar 8000 Life 35kW Combi boiler, we have awarded a rating of 90.88%.

This Worcester Bosch Greenstar 8000 Life 35kW Combi boiler will cost approximately £2,400 supplied and fully installed through PlumbProud assuming that there are no unexpected complications during the fitting.

To receive a free quote on the Worcester Bosch Greenstar 8000 Life 35kW boiler, as well as professional advice on whether it will meet the needs of your home, simply enter your postcode in the quote box on this page, click here to email us, or call 01604 343053.


Installed price guideline
£2,400

Get your free quote

Worcester Bosch Greenstar 8000 Life 35kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?Yes
P/L Warranty8 Years
Output in kW35 kW
Height825 mm
Width440 mm
Depth365 mm
MountingWall
Flow rate14 L/m
ERP HeatA
ERP WaterA

Worcester Bosch Greenstar 8000 Life 35kW Combi Gas boiler frequently asked questions

What type of boiler is the Worcester Bosch Greenstar 8000 Life 35kW - regular, system or combi?

The Worcester Bosch Greenstar 8000 Life 35kW is an option you may wish to consider if you’re looking for a combi boiler for your house or flat.

Traditional boilers have one or more large tanks in which they store either heated water or water to be heated later. Manufacturers originally introduced combi boilers to the market in the 1970s to enable homeowners to save space - UK residential properties are among the smallest in the Western world.

Combi boilers don't need these tanks because they draw water directly from the mains and instantly heat it on demand thanks to the technology inside the boiler. Combi boilers then distribute this hot water to your home’s taps and radiators when needed.

The most significant disadvantage of combi boilers is that they are not ideal in larger homes where multiple people might want hot water at the same time – for example, if someone is having a shower while another wants to wash dishes in the kitchen. This is because combi boilers have a maximum volume of water that they can heat. When two people want hot water at the same time, the water temperature, pressure and volume delivered to both points drop.

Is the Worcester Bosch Greenstar 8000 Life 35kW combi suitable for my house or flat?

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 8000 Life 35kW combi has an output of 35 kW, so which types of property would this Worcester Bosch Greenstar 8000 Life 35kW Combi boiler be appropriate for?

An experienced PlumbProud Gas Safe engineer would recommend that the level of output from this Worcester Bosch Greenstar 8000 Life 35kW Combi boiler would make it a suitable installation option for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

You also need to choose a combi boiler with the right flow rate for where you live.

A combi boiler's flow rate is the maximum volume of water (measured in litres per minute) that it can heat and distribute to your radiators, taps and showers at the same time. This Worcester Bosch Greenstar 8000 Life 35kW Combi boiler's flow rate is 14 L/m.

However, combi boilers like the Worcester Bosch Greenstar 8000 Life 35kW draw water directly from the mains and heat it instantly.

If your mains pressure is 12 litres per minute, your boiler can only heat and distribute hot water at a rate of 12 litres per minute even if it has a higher flow rate.

Combi boilers also struggle when multiple people in your home want to use hot water at the same time - for example, someone running the hot water tap in the kitchen and two people wanting to shower in separate bathrooms.

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 8000 Life 35kW in millimetres

The size of the Worcester Bosch Greenstar 8000 Life 35kW boiler is 825 mm tall, 440 mm wide, and 365 mm deep.

Worcester Bosch Greenstar 8000 Life 35kW – condensing or non-condensing?

Condensing boilers like the Worcester Bosch Greenstar 8000 Life 35kW improve energy efficiency and reduce your annual expenditure on gas.

They do this by capturing and recycling the warmth still present in water vapour condensation and flue exhaust gases to, for example, increase the temperature of the colder water returning from your radiators.

Condensing boilers are also much better for the environment because they emit fewer greenhouse gases.

Is the Worcester Bosch Greenstar 8000 Life 35kW combi an environmentally friendly boiler?

As more of us become concerned by the effects of climate change, the damage we do to the environment by heating our homes has emerged as an important issue for 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.

Is the Worcester Bosch Greenstar 8000 Life 35kW combi boiler an environmentally friendly choice for your home? Here’s what the figures say.

All boilers manufactured and installed in the UK are required to have an energy efficiency rating of 92% or above (or a good “A” SEDBUK rating). Before April 2018, when the law changed, the minimum energy efficiency level permissible was 88% (86-90% is a SEDBUK "B" rating and 90%+ is an "A" rating).

A boiler's energy efficiency rating indicates the amount of energy used and wasted during normal operational performance.

Following its assessment, the Worcester Bosch Greenstar 8000 Life 35kW was given an efficiency rating of 94% and a SEDBUK grading of "A".

The Energy Related Products Directive (ERP) came into force in 2015. This legislation was introduced to encourage manufacturers to create more energy-efficient products and it covers all products that consume energy during their lifetimes, including energy used during production and at the point of disposal.

ERP ratings of "A" for heat and "A" for water were assigned when testing the Worcester Bosch Greenstar 8000 Life 35kW.

What is the length of the warranty on the Worcester Bosch Greenstar 8000 Life 35kW?

On the Worcester Bosch Greenstar 8000 Life 35kW, the manufacturer offers a parts and labour warranty of 8 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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