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Grant VortexBlue 21kW boiler

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  2. Grant VortexBlue 21kW
Plumbproud rating

68.08%

Grant VortexBlue 21kW heat only Oil boiler

On the PlumbProud quality scoring system, we rate this Grant VortexBlue 21kW heat only boiler 68.08%. To determine our rating, we take lots of different factors into consideration from price installed to manufacturer guarantees, energy efficiency, likely cost of running, and more.

This Grant VortexBlue 21kW heat only boiler is likely to cost around £3,100 fully installed by PlumbProud if there are no unexpected complications during the fit.

Please enter your postcode in the quote boxes on this page, email us, or call us on 01604 343053 to get a free quote and guidance on whether the Grant VortexBlue 21kW boiler is the right choice for your home.


Installed price around

£3,100

GET A COMPETITIVE BOILER QUOTE

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

Grant VortexBlue 21kW heat only Oil boiler frequently asked questions

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

The Grant VortexBlue 21kW is an option you may wish to consider if you’re looking for a heat only boiler for your house or flat.

A heat only boiler, sometimes called a conventional boiler, a standard boiler or a regular boiler, requires both a hot water cylinder and a cold water tank to operate. Most homeowners keep their hot water cylinder in a landing cupboard or airing cupboard and their cold water tank in the attic. Your hot water is kept warm in the immersion cylinder.

With a heat only boiler, you program your hot water and temperature for set times during the day or week. If you forget to set your boiler or the immersion cylinder runs out of hot water, you may have to wait up to an hour for your supply of hot water to be restored.

A heat only boiler is likely to be the best choice for a home with several bathrooms or a bigger family - the type of household where hot water is in continual demand and more than one person might need it at once. With the more popular combi boiler, there is a maximum amount of water that can be heated and distributed, while pressure, volume and temperature drop if two or more people need hot water at once.

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

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

The output level of a boiler tells you how much power it has to heat the water coming from your taps and warming up your radiators. The higher the output level, the greater the volume of water it can heat up.

If the output (measured in kilowatts) is too high, you'll pay higher oil bills and your water will be piping hot. Too low and the water coming out of your taps and being fed into your radiators will often be lukewarm.

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

An experienced PlumbProud heating engineer would recommend that the most suitable type of property for a Grant VortexBlue 21kW heat only would be medium-sized homes and larger apartments containing 10-15 radiators and providing hot water for two bathrooms.


Dimensions of the Grant VortexBlue 21kW boiler

The Grant VortexBlue 21kW is 860 mm high by 470 mm wide by 603 mm deep.

If you use a floor-standing boiler like the Grant VortexBlue 21kW for your central heating and you're interested in replacing it with a more compact, wall-mounted boiler, you can. Wall-mounted boilers have been the most popular choice over the last two decades among homeowners wanting to create more space within their properties. Bear in mind that, while wall-mounted units are cheap, you may have to pay more for installation if your current piping needs replacing because it's not compatible with your new system.

This additional cost would however be recouped in full over a few years because of the savings you make on your quarterly oil bills.

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

Because of their increased energy efficiency, we recommend to all customers that they select one of the latest condensing boilers. Condensing boilers capture the heat from water vapour condensation and flue exhaust gases and recycle that heat to warm water entering the boiler (for example, from your radiators).

The Grant VortexBlue 21kW is a condensing oil boiler and choosing this model will result in a likely substantial reduction in your fuel bills, particularly if you're replacing an older, inefficient, non-condensing boiler.

Is the Grant VortexBlue 21kW heat only considered environmentally friendly?

Concern for the environment is causing more and more homeowners to think about how they heat their homes and its impact on climate change.

About 14% of the greenhouse gases we produce in the UK come from the power needed for central heating. In bigger British cities, gas boilers are a significant source of nitrogen dioxide emissions.

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

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 Grant VortexBlue 21kW was awarded an efficiency rating of 90.8% with a SEDBUK band rating of "A".

The ERP (Energy Related Products Directive) applies to all products that consume energy at any time in their lifetime, from manufacture to disposal and all points in between.

The intention of this European legislation is to encourage manufacturers to offer end users products that are better for the environment through the creation of fewer harmful gas emissions at all points of a product's life cycle.

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

Does the Grant VortexBlue 21kW heat only boiler come with a warranty?

The Grant VortexBlue 21kW boiler has a warranty covering parts and labour costs for up to 2 years after installation.


Grant VortexBlue 21kW Oil heat only 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 heat only boilers

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

1Worcester Bosch Greenstar Danesmoor Utility 12/1878.54%
2Worcester Bosch Greenstar Danesmoor Utility 18/2578.10%
3Worcester Bosch Greenstar Danesmoor Regular 12/1877.84%
4Worcester Bosch Greenstar Danesmoor Regular 18/2577.60%
5Worcester Bosch Greenstar Danesmoor External 12/1877.31%
6Worcester Bosch Greenstar Danesmoor External 18/2577.07%
7Worcester Bosch Greenstar Danesmoor Utility 25/3276.93%
8Worcester Bosch Greenstar Danesmoor Regular 25/3276.62%
9Worcester Bosch Greenstar Danesmoor Utility 32/5076.36%
10Worcester Bosch Greenstar Danesmoor External 25/3276.24%

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Grant VortexBlue 21kW boiler

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Grant VortexBlue 21kW heat only Oil boiler

  1. Home
  2. Grant VortexBlue 21kW
Plumbproud rating for this boiler
68.08%

We score this Grant VortexBlue 21kW heat only boiler as 68.08% 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 Grant VortexBlue 21kW heat only boiler is likely to cost you £3,100 supplied and fully installed through PlumbProud, although there may be additional charges if the fit takes longer than anticipated. You will, however, receive a binding quote from us prior to starting work.

For professional advice on whether the Grant VortexBlue 21kW is the right boiler for your home or to receive a free quotation, please call 01604 343053 to speak to our friendly team. You are also welcome to email us by clicking here or you can enter your postcode into the quotation box on this page.


Installed price guideline
£3,100

Get your free quote

Grant VortexBlue 21kW Oil heat only 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 heat only Oil boiler frequently asked questions

Grant VortexBlue 21kW - combi, system or regular boiler?

If you are searching for a heat only boiler for your house or flat, the Grant VortexBlue 21kW is certainly one to consider.

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 the Grant VortexBlue 21kW heat only boiler a suitable option for my house or flat?

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

A boiler’s output is a measurement of the amount of power it can use to provide hot water to your taps and radiators. The higher its output rate, the more water it can heat.

If your new boiler’s output is too low, your hot water might not be as hot as you want it to be. If it's too high, you’ll be paying more for oil than you need to.

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

Most experienced Gas Safe boiler installers would recommend that a boiler with this output level would be most 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 become the preferred choice for homeowners in the UK over the last 20 years, but hundreds of thousands of homes still use bulkier floor-standing models for their central heating. It is possible to replace your floor-standing boiler with a wall-mounted one if you wish so that you and your family have more living space. But we must advise you that you may also have to pay to replace some or all of your existing pipework.

You should however be able to recoup this cost in full after a few years because of the savings you make each quarter on your oil bills.

Is the Grant VortexBlue 21kW non-condensing or 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 heat only environmentally friendly?

As more of us are increasingly concerned about climate change, how we heat our homes and its impact on the environment has become an issue of importance to 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 Grant VortexBlue 21kW heat only boiler an environmentally friendly choice for your home? Here’s what the figures say.

All boilers manufactured and supplied in the UK are assigned two energy efficiency ratings. By law, they must achieve a SEDBUK "A" rating subject to a minimum efficiency level of 92%. Prior to that, the minimum was 88% (88% and 89% are equivalent to a SEDBUK "B" grade and 90% and above an "A" grade).

The ratings awarded to the Grant VortexBlue 21kW are 90.8% with a SEDBUK rating of "A".

All products that consume energy throughout their lifespan must comply with the Energy Related Products (ERP) Directive.

Companies are legally obliged to reduce harmful gas emissions at all stages of a product's life cycle, from initial manufacturing right through to final disposal as well as when the product is in actual use.

The Grant VortexBlue 21kW scores "A".

How long is the warranty period on the Grant VortexBlue 21kW heat only boiler?

Parts and labour charges incurred for repairs made to your new Grant VortexBlue 21kW are covered by a 2 year warranty.


The top 10 rated Oil heat only boilers

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

1Worcester Bosch Greenstar Danesmoor Utility 12/1878.54%
2Worcester Bosch Greenstar Danesmoor Utility 18/2578.10%
3Worcester Bosch Greenstar Danesmoor Regular 12/1877.84%
4Worcester Bosch Greenstar Danesmoor Regular 18/2577.60%
5Worcester Bosch Greenstar Danesmoor External 12/1877.31%
6Worcester Bosch Greenstar Danesmoor External 18/2577.07%
7Worcester Bosch Greenstar Danesmoor Utility 25/3276.93%
8Worcester Bosch Greenstar Danesmoor Regular 25/3276.62%
9Worcester Bosch Greenstar Danesmoor Utility 32/5076.36%
10Worcester Bosch Greenstar Danesmoor External 25/3276.24%
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