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Grant VortexBlue 21kW boiler

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Plumbproud rating

67.67%

Grant VortexBlue 21kW System Oil boiler

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 Grant VortexBlue 21kW System boiler, we have awarded a rating of 67.67%.

You should budget approximately £3,400 for the supply and installation of this Grant VortexBlue 21kW System boiler on a standard, non-complicated fit.

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 Grant VortexBlue 21kW boiler and offer professional advice and guidance on whether this Grant VortexBlue 21kW System boiler is the right choice for your home.


Installed price around

£3,400

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Grant VortexBlue 21kW System Oil boiler frequently asked questions

What type of boiler is Grant’s VortexBlue 21kW - system, regular or combi?

The Grant VortexBlue 21kW is a system boiler you may wish to consider if you want this type of boiler for your house or flat.

As with a heat only boiler, a system boiler requires the installation of a hot water cylinder but they do not need a cold water tank to work. This makes them suitable choices for homeowners planning a loft conversion or for properties without a loft or very limited attic space.

The primary heating and hot water system components are built in to system boilers and you can use the control panel to set the times that you wish your heating and hot water to be available. Hot water is stored in the cylinder for use throughout the day, but if you don't set your timer, heat and hot water will not be available instantly.

A system boiler can supply multiple taps and showers simultaneously and is suitable for both large families and properties with more than one bathroom - combi boilers struggle to do this.

Is the Grant VortexBlue 21kW system suitable for my house or flat?

Whether this Grant VortexBlue 21kW System boiler is right for where you live depends on its size or what its "output" level is. Size does not mean its physical dimensions, however - it means how powerful it is.

The output of a boiler is measured in kilowatts and indicates how much energy it can use to heat the water needed for your radiators, taps and showers. The greater the output, the more water it can heat.

A boiler whose output is too high will give you hot water and warm radiators but also higher oil bills, whereas a boiler whose output is too low will result in cheaper oil bills but the water might not always be as hot as you want it to be.

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

A PlumbProud boiler engineer would almost certainly recommend that this Grant VortexBlue 21kW System boiler is most suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Where will the Grant VortexBlue 21kW fit in my house?

The Grant VortexBlue 21kW boiler measures 860 mm [H] x 470 mm [W] x 603 mm [D] in size.

Hundreds of thousands of properties in the UK still have floor-standing boilers like the Grant VortexBlue 21kW despite the fact that over the last 20 years more compact, wall-hung boilers have become the preference for most homeowners keen to free up space in their properties.

While it is possible to replace your existing floor-standing boiler with a wall-mounted boiler to free up space in your home, please bear in mind that much of the pipework might need replacing, which is over and above the cost of the boiler and its installation. This will be a significant one-off investment if you do decide to switch and while the savings on your oil bills will repay it eventually, this will take a few years.

Grant VortexBlue 21kW – non-condensing or condensing?

We always recommend to clients that they select the very latest condensing boiler for their home.

Condensing boilers like the Grant VortexBlue 21kW are more efficient with the oil they use in operation, meaning that you'll benefit from lower fuel bills. Condensing boilers are also better for the environment.

They achieve their efficiency by capturing and recycling the heat still present in the water vapour condensation and flue exhaust gases created when a boiler burns oil to get the energy it needs. It then reuses that recycled heat to perform a number of tasks, including heating the colder water that comes back to your boiler via the radiator.

Is the Grant VortexBlue 21kW system a good choice for the environment?

Environmentally-friendly heating has become an important issue for homeowners concerned about the accelerating pace of climate change.

Around 14% of the greenhouse gases produced in the UK is a result of our central heating systems. Gas boilers are responsible for dangerous levels of nitrogen dioxide emissions in some of our largest cities.

Would choosing the Grant VortexBlue 21kW system be an environmentally-friendly choice? If so, let's look at its performance figures.

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 Grant VortexBlue 21kW has been given a rating of 90.8% for energy efficiency, equivalent to a SEDBUK "A" rating.

The ERP, short for the Energy Related Products Directive, is a European directive aimed at encouraging manufacturers to create products that are environmentally friendlier at all stages, including during manufacturing, when the product is in active use, and right through to the point of final disposal.

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

Is there a warranty on the Grant VortexBlue 21kW system boiler if it breaks down?

The Grant VortexBlue 21kW boiler comes with a 2 year warranty for parts and labour.


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%

We have rated this Grant VortexBlue 21kW System boiler at 67.67% using the PlumbProud quality scoring system. To determine a rating, we weigh up a number of important considerations including the energy efficiency, estimated running costs, manufacturer's warranty, price of the boiler and more.

We estimate that this Grant VortexBlue 21kW System boiler will cost £3,400 fully installed through PlumbProud provided that the fit is straightforward.

We recommend that you speak to our friendly advisors by calling 01604 343053 to seek professional advice on whether the Grant VortexBlue 21kW boiler is right for your home. Our team can also provide you with a free quotation for this Grant VortexBlue 21kW System boiler. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


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 combi boiler, system boiler or regular boiler?

Looking for a oil system boiler for your flat or house? Then the Grant VortexBlue 21kW may be an option you should consider.

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 a Grant VortexBlue 21kW system a suitable choice for my house or flat?

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 oil than you need to.

The Grant VortexBlue 21kW system boiler has an output of 21 kW, so which types of property would it be most appropriate for?

A PlumbProud boiler engineer would almost certainly recommend that this Grant VortexBlue 21kW System boiler is most suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


What is the size of the Grant VortexBlue 21kW?

The Grant VortexBlue 21kW is 860 mm tall, 470 mm wide, and 603 mm deep.

There are still hundreds of thousands of floor-standing boilers like the Grant VortexBlue 21kW throughout the UK even though compact, wall-mounted boilers have become the preferred choice for most homeowners in the last 20 years who want more space to live. It is still possible to replace your existing floor-standing boiler with a wall-mounted unit if you want but please keep in mind that the pipework might need to be replaced in addition to the boiler and installation.

You will eventually recover that investment with savings on your oil bills but this will take some time.

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

We recommend that, if possible, you select one of the very latest condensing oil boilers on the market like the Grant VortexBlue 21kW.

Condensing boilers are better for the environment because they capture and recycle the heat still present in flue exhaust gases and water vapour condensation for re-use, meaning lower greenhouse gas emissions.

They're also a lot cheaper to run meaning that, if you're replacing a very old and inefficient boiler, the savings on your oil bill over 5-10 years add up to more than you pay for the boiler itself.

What energy efficiency ratings have been awarded to the Grant VortexBlue 21kW system?

With so many of us worried about the environmental impact of our personal choices, the relationship between how we heat our homes and climate change has become an important issue for many homeowners.

Around 14% of the greenhouse gases produced in the UK is a result of our central heating systems. Gas boilers are responsible for dangerous levels of nitrogen dioxide emissions in some of our largest cities.

Will installing a Grant VortexBlue 21kW system in your home be a positive contribution to the environment? The figures below will tell you more.

Boilers manufactured in the UK must be tested and, by law, achieve an energy efficiency rating of 92% or above, equivalent to a SEDBUK "A" grade. Most boilers achieve an "A" rating meaning they are at least 88% efficient.

The energy efficiency of a boiler indicates the amount of energy it uses (and wastes) during operation.

The Grant VortexBlue 21kW has been assigned an efficiency rating of 90.8% with a SEDBUK rating of "A".

The Energy Related Products Directive intends to encourage all manufacturers to reduce harmful gas emissions connected to the products they make, from the manufacturing stage to final disposal, including when they are in active use.

The Grant VortexBlue 21kW has an ERP rating of "A".

What warranty does the Grant VortexBlue 21kW system boiler come with?

On the Grant VortexBlue 21kW, the manufacturer offers a parts and labour warranty of 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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