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Grant VortexBlue 21kW boiler

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Plumbproud rating

67.67%

Grant VortexBlue 21kW System Oil boiler

This Grant VortexBlue 21kW System boiler scores 67.67% on our PlumbProud boiler quality benchmark tests. To determine our rating, we consider many factors, such as the cost of installation, manufacturer guarantees, energy efficiency, and likely running costs.

You should budget around £3,400 for the supply and installation of this Grant VortexBlue 21kW System boiler by PlumbProud.

To receive a free quote on the Grant VortexBlue 21kW and to get professional guidance and advice on whether this Grant VortexBlue 21kW System 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 around

£3,400

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Grant VortexBlue 21kW System Oil boiler frequently asked questions

Is the Grant VortexBlue 21kW a system, regular or combi boiler?

If you’re looking for a system boiler for your house or flat, you may wish to the consider the Grant VortexBlue 21kW.

System boilers are suitable for larger homes where there is a higher-than-average demand for hot water and heating.

Through their use of a hot water cylinder, they provide hot water on demand during the day - as long as there's enough water left in the cylinder. Just let the boiler know when you want hot water for your radiators and taps via the programming panel and, subject to tank size and household usage, it'll be there for you.

Unlike heat only boilers, there is no requirement to find room in the attic for a cold water storage tank. System boilers are therefore quicker, easier and cheaper to install.

Is a Grant VortexBlue 21kW system boiler right for my house or apartment?

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

A boiler's output level measures how much power it can use to provide you with the hot water you need for your radiators and taps. If a boiler has a high output rate, it can heat greater volumes of water.

If you choose a boiler with too low an output, you'll find that the water coming out of your taps and in your radiators won't be as hot as you want it to be. Choosing one whose output is too high means you'll pay more than you need to for the oil your boiler needs to work.

The Grant VortexBlue 21kW system outputs at a maximum of 21 kW, so which types of property would this Grant VortexBlue 21kW System boiler be appropriate for?

Most experienced boiler engineers would recommend that this Grant VortexBlue 21kW System boiler would be suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Grant VortexBlue 21kW size

The dimensions of the Grant VortexBlue 21kW are 860 mm [H] x 470 mm [W] x 603 mm [D].

Wall-hung boilers have been the most popular installation choice over the last 20 years because they're compact, discreet, and don’t take up much space. Yet there are still hundreds of thousands of UK homeowners whose central heating is provided by floor-standing boilers like the Grant VortexBlue 21kW, which they're looking to replace to free up more living space. This is possible, however please be aware that there may be an additional cost if we need to replace your existing pipework.

That said, you should be able to fully recoup your investment within a few years thanks to the quarterly savings you'll make on your oil bills.

Is this Grant boiler non-condensing or condensing?

The Grant VortexBlue 21kW is a condensing oil boiler - we strongly recommend that you choose one of the latest condensing models if possible.

With a condensing boiler, you save money on your oil bills because your boiler captures and recycles the heat present in the flue exhaust gases and water vapour condensation for re-use, meaning they operate far more economically and efficiently.

Is the Grant VortexBlue 21kW system considered environmentally friendly?

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

Nitrogen dioxide emissions in Britain's largest cities are at dangerous levels and this has been caused by gas boilers. In fact, 14% of the UK’s greenhouse gases are produced by central heating.

If you decide to install a Grant VortexBlue 21kW system in your home, will you be helping the environment with your choice? Let’s have a look at the figures.

In the UK, by law, all boilers manufactured since April 2018 must have a SEDBUK “A” rating and operate to a minimum level of 92% energy efficiency. Prior to this, the minimum was 88% – 88/89% would score a "B" and 90% or more an "A" on the SEDBUK scale.

The energy efficiency rating measures the amount of energy a boiler consumes when it's in use and how much it loses on non-core operations.

Following testing, the Grant VortexBlue 21kW was given an efficiency rating of 90.8% and a SEDBUK grading of "A".

The Energy Related Products Directive, also known as ERP, is European legislation that intends to reduce energy consumption related to products right from their initial manufacturing process through to eventual final disposal.

The purpose of the directive is to encourage manufacturers to create new products that are kinder to the environment and which result in lower overall harmful gas emissions through a product's entire life cycle.

The Grant VortexBlue 21kW has a rating of "A".

What is the warranty period for the Grant VortexBlue 21kW?

The manufacturer offers a parts and labour warranty of 2 years on the Grant VortexBlue 21kW boiler to new customers.


Grant VortexBlue 21kW Oil System boiler specifications

Powered by GasOil
LocationExternal
Condensing?Yes
Efficiency rating90.8%
Band ratingA
LPG Compatible?No
P/L Warranty2 Years
Output in kW21 kW
Height860 mm
Width470 mm
Depth603 mm
MountingFloor
ERP HeatA

The top 10 rated Oil System boilers

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

1Worcester Bosch Greenstar Danesmoor System Utility 12/1877.56%
2Worcester Bosch Greenstar Danesmoor System 12/1877.35%
3Worcester Bosch Greenstar Danesmoor System Utility 18/2577.27%
4Worcester Bosch Greenstar Danesmoor System 18/2577.09%
5Worcester Bosch Greenstar Danesmoor External System 12/1876.74%
6Worcester Bosch Greenstar Danesmoor System Utility 25/3276.43%
7Worcester Bosch Greenstar Danesmoor External System 18/2576.26%
8Worcester Bosch Greenstar Danesmoor System 25/3276.24%
9Worcester Bosch Greenstar Danesmoor External System 25/3275.85%
10Grant Vortex Eco 15-21kW69.11%

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Grant VortexBlue 21kW boiler

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Grant VortexBlue 21kW System Oil boiler

  1. Home
  2. Grant VortexBlue 21kW
Plumbproud rating for this boiler
67.67%

Based on a wide-ranging set of important factors including the cost to install the boiler, its energy efficiency rating, running costs, and so on, this Grant VortexBlue 21kW System boiler receives a score of 67.67% on our PlumbProud quality scoring system.

On most non-complicated installations, we would expect this Grant VortexBlue 21kW System boiler to cost £3,400 supplied and fully professionally installed.

To receive a free quote on the Grant VortexBlue 21kW 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
£3,400

Get your free quote

Grant VortexBlue 21kW Oil System boiler specifications

Powered by GasOil
LocationExternal
Condensing?Yes
Efficiency rating90.8%
Band ratingA
LPG Compatible?No
P/L Warranty2 Years
Output in kW21 kW
Height860 mm
Width470 mm
Depth603 mm
MountingFloor
ERP HeatA

Grant VortexBlue 21kW System Oil boiler frequently asked questions

Is the Grant VortexBlue 21kW a standard, combi or system boiler?

If you are considering installing a system boiler in your house or flat, then the Grant VortexBlue 21kW boiler is certainly worth investigating.

If you choose a system boiler, you'll have to find somewhere to install a hot water cylinder too - they're normally located in an airing or landing cupboard. However, unlike regular boilers, they do not require a cold water tank to be fitted in the attic, making them suitable for homes with limited or no roof space or if you're planning a loft conversion in the future.

System boilers distribute the hot water to your taps and radiators using (often built-in) circulation pumps and are easier to install from scratch since they have one less component (the water tank) to consider.

System boilers also require programming to produce heat and hot water, so they cannot produce this instantly. Nonetheless, the cylinder keeps water hot for use later, so you don't have to wait as long as you set your timer and keep it on long enough to heat enough water.

Is the Grant VortexBlue 21kW system 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 oil than you need to.

The output of the Grant VortexBlue 21kW system is 21 kW, so which types of property would this Grant VortexBlue 21kW System boiler be appropriate for?

Most heating engineers would recommend this Grant VortexBlue 21kW System boiler as a suitable option for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


How large is the Grant VortexBlue 21kW?

The Grant VortexBlue 21kW measures 860 mm high and 470 mm wide by a depth of 603 mm.

Floor-standing boilers can still be found in hundreds of thousands of properties in the UK - however, many homeowners are considering switching to wall-mounted units to create new living space for themselves and their families. Our engineers can replace your current floor-standing unit with a wall-mounted model, although please be aware that we may need to charge more if your current pipework needs replacing.

Your investment will be worth it as you'll more than cover the cost with the saving you make every year on your oil bills.

Is the Grant VortexBlue 21kW condensing or non-condensing?

The Grant VortexBlue 21kW is a condensing oil boiler - we strongly suggest that you choose either this model or a recently released model if at all possible.

A condensing boiler captures and recycles the warmth present in flue exhaust gases and water vapour condensation created by the burning of oil to warm up the water coming back into your boiler - for example, from your radiators.

Condensing boilers cost less to run (lower oil bills) and are better for the environment.

Is the Grant VortexBlue 21kW system environmentally friendly?

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.

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.

Will installing a Grant VortexBlue 21kW system be a positive contribution to the environment? Let's see what the experts say.

The energy efficiency rating of the Grant VortexBlue 21kW is 90.8% with a SEDBUK band rating of "A".

Energy efficiency tests record how much energy is wasted on non-core functions during an operation.

By law, all boilers manufactured and supplied in the UK must have a minimum energy efficiency performance level of 92% (equivalent to a SEDBUK "A" grade). Up to April 2018, the minimum performance level was 88% (88% and 89% are equivalent to a SEDBUK "B" grade and 90%+ an "A" grade).

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

Its purpose is to encourage manufacturers to offer products that are kinder to the environment by reducing harmful gas emissions at all stages, from production and end use right through to disposal.

The ERP rating for the Grant VortexBlue 21kW is "A".

Am I covered if my Grant VortexBlue 21kW system boiler breaks down?

The parts and labour warranty on the Grant VortexBlue 21kW lasts for 2 years.


The top 10 rated Oil System boilers

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

1Worcester Bosch Greenstar Danesmoor System Utility 12/1877.56%
2Worcester Bosch Greenstar Danesmoor System 12/1877.35%
3Worcester Bosch Greenstar Danesmoor System Utility 18/2577.27%
4Worcester Bosch Greenstar Danesmoor System 18/2577.09%
5Worcester Bosch Greenstar Danesmoor External System 12/1876.74%
6Worcester Bosch Greenstar Danesmoor System Utility 25/3276.43%
7Worcester Bosch Greenstar Danesmoor External System 18/2576.26%
8Worcester Bosch Greenstar Danesmoor System 25/3276.24%
9Worcester Bosch Greenstar Danesmoor External System 25/3275.85%
10Grant Vortex Eco 15-21kW69.11%
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