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Worcester Bosch Greenstar Ri 21Ri boiler

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  2. Worcester Bosch Greenstar Ri 21Ri
Plumbproud rating

92.45%

Worcester Bosch Greenstar Ri 21Ri heat only Gas boiler

Using factors such as price installed, manufacturer guarantees, energy efficiency and the likely cost of running, among others, this model has been rated as scoring 92.45% on the PlumbProud boiler benchmarking system.

This Worcester Bosch Greenstar Ri 21Ri heat only boiler is likely to cost around £2,000 fully installed by PlumbProud if there are no unexpected complications during the fit.

You can speak to our friendly and professional advisors by calling 01604 343053. They can provide you with a free quotation on the Worcester Bosch Greenstar Ri 21Ri boiler and confirm that it is suitable for your home. You can also click here to email us or enter your postcode into the quotation box on this page.


Installed price around

£2,000

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

Which category of boiler does the Worcester Bosch Greenstar Ri 21Ri fit into?

The Worcester Bosch Greenstar Ri 21Ri is a gas heat only boiler.

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.

Is the Worcester Bosch Greenstar Ri 21Ri heat only suitable for my house or flat?

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 Ri 21Ri heat only is 21 kW, so which types of property would this Worcester Bosch Greenstar Ri 21Ri heat only boiler be appropriate for?

An experienced boiler engineer would recommend that this Worcester Bosch Greenstar Ri 21Ri heat only boiler would provide adequate heating and hot water for medium-sized homes and larger apartments with up to 10-15 radiators and two bathrooms.


How large is a Worcester Bosch Greenstar Ri 21Ri boiler?

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

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

We recommend the Worcester Bosch Greenstar Ri 21Ri 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 the Worcester Bosch Greenstar Ri 21Ri heat only rated as environmentally friendly?

How we heat our homes is an issue which many homeowners worry about as the world combats climate change and environmental damage.

We generate 14% of UK greenhouse gas emissions through centrally heating our domestic properties. Gas boilers are mainly responsible for harmful nitrogen dioxide emissions in larger British cities.

Will installing a Worcester Bosch Greenstar Ri 21Ri heat only be a positive contribution to the environment? Let's see what the experts say.

Every boiler manufactured and supplied in the UK must have an energy efficiency rating of 92% (SEDBUK “A” rating). These minimums were made law in April 2018 - before that, the minimum energy efficiency rating was 88% (88%/89% = "B" SEDBUK grade, 90%+ = "A" SEDBUK grade).

The Worcester Bosch Greenstar Ri 21Ri was awarded an efficiency rating of 92% and a band rating of "A".

Energy efficiency ratings for boilers describe the amount of energy they use and waste when switched on and working.

In 2015, the Energy Related Products Directive (ERP) came into force. The legislation applies to all products that consume energy - in production, during their active life, and at the point of final disposal.

The ERP was introduced to incentivise manufacturers to create products that emit fewer harmful gases with the larger aim of protecting the wider environment.

The Worcester Bosch Greenstar Ri 21Ri has been awarded an ERP rating of "A".

How long is the warranty offered by the manufacturer for the Worcester Bosch Greenstar Ri 21Ri boiler?

The Worcester Bosch Greenstar Ri 21Ri boiler offers a parts and labour warranty of 7 years.


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%

We have determined a rating of 92.45% for this Worcester Bosch Greenstar Ri 21Ri heat only 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.

On straightforward installations, we would expect to charge you £2,000 for this Worcester Bosch Greenstar Ri 21Ri heat only boiler fully installed.

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


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

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

The Worcester Bosch Greenstar Ri 21Ri is an option you may wish to consider if you’re looking for a heat only boiler for your house or flat.

Heat only boilers (sometimes called conventional boilers, standard boilers or regular boilers) require both a hot water/immersion cylinder (normally in a landing cupboard or utility room) and a cold water tank (normally in the attic). The immersion cylinder keeps hot water warm and the cold water tank holds water which it transfers to the immersion cylinder when required.

You set the times that you need heat and hot water with a standard boiler. Once the water in the cylinder is heated, it can be used throughout the day. However, it takes a while for the water to heat up and so, if you haven't set your system, you will have to wait a while for heat and hot water to come back (normally no more than an hour).

Combi boilers deliver hot water instantly but there is a limit to the amount of water they can heat and distribute at any one time. Heat only boilers are usually better choices if you have a large family or more than one bathroom where more than one person in your household requires hot water at the same time.

Is a Worcester Bosch Greenstar Ri 21Ri heat only boiler right for my house or apartment?

You should make sure that the boiler you install in your property is the right "size". And size doesn't mean its physical dimensions, size means how much power it has - the "output".

Output measures in kilowatts how much power a boiler can use when heating water for your radiators or taps. The higher the output rate, the more water it can heat.

If the output rate is too low, your hot water might often be only lukewarm, and if it is too high, you will be paying more for your gas than you need to.

The Worcester Bosch Greenstar Ri 21Ri heat only boiler has an output of 21 kW, so which types of property would it be most appropriate for?

An experienced Gas Safe boiler installer would recommend that the Worcester Bosch Greenstar Ri 21Ri heat only boiler would be an ideal installation option for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


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

The Worcester Bosch Greenstar Ri 21Ri is 600 mm [H] by 390 mm [W] by 270 mm [D] in size.

Worcester Bosch Greenstar Ri 21Ri – non-condensing or condensing?

The Worcester Bosch Greenstar Ri 21Ri is a condensing gas boiler - where possible, we always recommend to clients that they choose one of the very latest condensing boilers to take advantage of this technology, which improves year after year.

Condensing boilers are more energy-efficient as they capture and recycle the heat contained in flue exhaust gases and water vapour condensation. They then use this heat to perform tasks like warming up colder water returning to the boiler from the radiators.

By choosing a condensing boiler, you'll help the environment as well as save money on your gas bills.

How does the Worcester Bosch Greenstar Ri 21Ri heat only boiler rate environmentally?

Concern for the environment is causing more and more homeowners to think about how they heat their homes and its impact 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 to install a Worcester Bosch Greenstar Ri 21Ri heat only in your home help the environment? Let's review the figures.

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 Ri 21Ri was given an efficiency rating of 92% and a SEDBUK grading of "A".

The Energy Related Products Directive grades products according to the energy they consume and the harmful gas emissions they create, from manufacturing right through to final disposal, including how they're used by customers between these two points.

The Worcester Bosch Greenstar Ri 21Ri is rated "A".

Is there a warranty on the Worcester Bosch Greenstar Ri 21Ri heat only boiler if it breaks down?

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


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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