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Worcester Bosch Greenstar Ri 21Ri boiler

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Plumbproud rating

92.45%

Worcester Bosch Greenstar Ri 21Ri heat only 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 Ri 21Ri heat only boiler scores 92.45%.

On a straightforward installation of this make of boiler using PlumbProud, you should expect to budget around £2,000.

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 Ri 21Ri boiler and offer professional advice and guidance on whether this Worcester Bosch Greenstar Ri 21Ri heat only boiler is the right choice for your home.


Installed price around

£2,000

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 Ri 21Ri heat only Gas boiler frequently asked questions

Is this Worcester Bosch Greenstar Ri 21Ri boiler a combi, system or regular boiler?

The Worcester Bosch Greenstar Ri 21Ri is a heat only boiler you may wish to consider if you want this particular type of boiler for your house or flat.

If your home has more than one bathroom or you have a large family that uses a lot of hot water, a heat only boiler (sometimes called a standard boiler, a regular boiler or a conventional boiler) is likely to be the best option for you. Heat only boilers require both a hot water or immersion cylinder and a cold water tank. Once the water in the cylinder is heated, you can use this hot water throughout the day and it can feed multiple taps and showers at the same time.

This is in contrast to a combi boiler which can only heat a limited amount of water at any one time. This can cause a problem if two or more taps and showers are being used simultaneously as the water temperature, pressure and volume to all points will drop.

Heat only boilers allow you to program the times that you want heat and hot water to be available. However, if you forget to do this and the immersion cylinder is empty, you may have to wait up to an hour before hot water becomes available again.

If your property already has a water tank and cylinder, it will nearly always be cheaper to replace like for like instead of replacing it with a different type of boiler. In addition to new pipework, you may need to replace older radiators that may be unable to cope with the higher water pressure delivered by other types of boiler.

Should I choose a Worcester Bosch Greenstar Ri 21Ri heat only boiler 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 Ri 21Ri heat only has an output of 21 kW, so which types of property would this Worcester Bosch Greenstar Ri 21Ri heat only boiler be appropriate for?

To most boiler engineers, the Worcester Bosch Greenstar Ri 21Ri heat only Greenstar Ri would be most suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Making space for the Worcester Bosch Greenstar Ri 21Ri

The size of the Worcester Bosch Greenstar Ri 21Ri boiler is 600 mm high, 390 mm wide, and 270 mm deep.

Greenstar Ri 21Ri – non-condensing or condensing?

Condensing gas boilers like the Worcester Bosch Greenstar Ri 21Ri 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 energy efficient is the Worcester Bosch Greenstar Ri 21Ri heat only?

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.

In the largest cities of Britain, gas boilers are responsible for dangerous levels of atmospheric nitrogen dioxide emissions. In total, 14% of the UK’s greenhouse gases are produced by central heating systems.

Would choosing a Worcester Bosch Greenstar Ri 21Ri heat only help the environment? Let’s see what the performance figures suggest.

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 Ri 21Ri has been given a rating of 92% for energy efficiency, equivalent to a SEDBUK "A" rating.

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.

The ERP assessors assigned a rating of "A" when testing the Worcester Bosch Greenstar Ri 21Ri.

What warranty do I get if I purchase the Worcester Bosch Greenstar Ri 21Ri boiler?

The manufacturer offers a parts and labour warranty of 7 years on the Worcester Bosch Greenstar Ri 21Ri boiler to new customers.


Worcester Bosch Greenstar Ri 21Ri Gas heat only boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating92%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW21 kW
Height600 mm
Width390 mm
Depth270 mm
MountingWall
ERP HeatA

The top 10 rated Gas heat only boilers

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

1Vaillant ecoTEC Plus 41596.51%
2Vaillant ecoTEC Plus 41895.45%
3Vaillant ecoFIT Pure 41294.82%
4Vaillant ecoTEC Plus 42494.77%
5Vaillant ecoFIT Pure 41594.23%
6Vaillant ecoTEC Plus 43094.23%
7Worcester Bosch Greenstar Ri 12Ri94.18%
8Worcester Bosch Greenstar Ri 15Ri93.93%
9Worcester Bosch Greenstar Ri 18Ri93.26%
10Vaillant ecoFIT Pure 41893.11%

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Worcester Bosch Greenstar Ri 21Ri heat only Gas boiler

  1. Home
  2. Worcester Bosch Greenstar Ri 21Ri
Plumbproud rating for this boiler
92.45%

In our PlumbProud quality testing, this Worcester Bosch Greenstar Ri 21Ri heat only boiler scores 92.45%. We determine our rating based on a number of different factors including installation costs, manufacturer guarantees, energy efficiency, and operating costs.

Provided the proposed installation is straightforward, we would anticipate that this Worcester Bosch Greenstar Ri 21Ri heat only boiler will cost £2,000 fully installed through PlumbProud.

For a free quote on the Worcester Bosch Greenstar Ri 21Ri boiler and to get professional advice and guidance on whether it is the right choice for your home, please enter your postcode in the quote boxes on this page, click here to email us, or call us on 01604 343053.


Installed price guideline
£2,000

Get your free quote

Worcester Bosch Greenstar Ri 21Ri Gas heat only boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating92%
Band ratingA
LPG Compatible?Yes
P/L Warranty7 Years
Output in kW21 kW
Height600 mm
Width390 mm
Depth270 mm
MountingWall
ERP HeatA

Worcester Bosch Greenstar Ri 21Ri heat only Gas boiler frequently asked questions

Is the Worcester Bosch Greenstar Ri 21Ri a combi, system or regular boiler?

Looking for a gas heat only boiler for your flat or house? Then the Worcester Bosch Greenstar Ri 21Ri may be an option you should consider.

Sometimes called regular boilers, conventional boilers or standard boilers, heat only boilers require a cold water tank (often kept in the loft) and a hot water cylinder and an immersion heater (often kept in a landing or airing cupboard) to work. The immersion heater heats the water and keeps it warm.

With a heat only boiler, you pre-set a timer to tell the system when you want it to provide you with hot water and central heating. Remember though, if you don't program it and there's no water left in the hot water cylinder, you'll have to wait up to an hour before running a bath or shower.

Heat only boilers are better for larger homes or homes with more than one bathroom where there is a high demand for hot water at certain times of the day. Unlike with combi boilers where water pressure, volume and temperature drops if, for example, more than one person is using a hot tap, regular boilers can cope with multiple members of your household wanting hot water at the same time.

Should I install a Worcester Bosch Greenstar Ri 21Ri heat only boiler in my house or apartment?

You should make sure that the boiler you install in your property 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 has to be powerful enough to heat all the hot water you need for your radiators and taps. Power is measured in kilowatts and the more kilowatts a boiler has available to it, the more water it can heat.

If the output (measured in kilowatts) is too high, you'll have all the power you need and more but your gas bills will be much higher. If it's too low, you'll often find that the water coming out of your taps and fed into your radiators is only lukewarm.

With the Worcester Bosch Greenstar Ri 21Ri heat only's output at 21 kW, which types of property would this Worcester Bosch Greenstar Ri 21Ri heat only boiler be most appropriate for?

A PlumbProud Gas Safe boiler installer would recommend that the level of output from this Worcester Bosch Greenstar Ri 21Ri heat only boiler would make it a suitable installation option for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


What size is a Worcester Bosch Greenstar Ri 21Ri boiler?

The Worcester Bosch Greenstar Ri 21Ri stands at 600 mm tall, 390 mm wide and 270 mm deep.

Is the Worcester Bosch Greenstar Ri 21Ri non-condensing or condensing?

Condensing gas boilers like the Worcester Bosch Greenstar Ri 21Ri 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 heat only Worcester Bosch Greenstar Ri 21Ri boiler energy efficient?

Price and performance are two important issues when choosing a boiler but now, for many people in the UK, so is the environmental impact of how we heat our homes and its effect on climate change.

Central heating produces 14% of all greenhouse gas emissions in the UK. Gas boilers in the larger cities emit dangerous levels of nitrogen dioxide.

Will choosing a Worcester Bosch Greenstar Ri 21Ri heat only boiler for your home be positive for the environment? Let's examine the figures.

All boilers manufactured in the UK from April 2018 must achieve a SEDBUK “A” grade and an energy efficiency rating of 92% or above. Before that, the minimum was 88% - efficiency ratings of 88% and 89% were scored a “B” and 90%+ an "A".

A boiler's energy efficiency rating describes how much energy it uses and wastes during its standard operation.

The energy efficiency of the Worcester Bosch Greenstar Ri 21Ri was rated at 92% with a SEDBUK grading of "A".

The Energy Related Products (ERP) directive is Europe-wide legislation designed to reduce harmful gas emissions at all points of a product's life cycle - from the production process to its actual end use right through to final disposal.

The Worcester Bosch Greenstar Ri 21Ri has a rating of "A".

What is the warranty period for the Worcester Bosch Greenstar Ri 21Ri?

Parts and labour charges incurred during a repair on the Worcester Bosch Worcester Bosch Greenstar Ri 21Ri boiler are covered by a 7 year warranty.


The top 10 rated Gas heat only boilers

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

1Vaillant ecoTEC Plus 41596.51%
2Vaillant ecoTEC Plus 41895.45%
3Vaillant ecoFIT Pure 41294.82%
4Vaillant ecoTEC Plus 42494.77%
5Vaillant ecoFIT Pure 41594.23%
6Vaillant ecoTEC Plus 43094.23%
7Worcester Bosch Greenstar Ri 12Ri94.18%
8Worcester Bosch Greenstar Ri 15Ri93.93%
9Worcester Bosch Greenstar Ri 18Ri93.26%
10Vaillant ecoFIT Pure 41893.11%
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