GET A COMPETITIVE QUOTE

Please enter your postcode below to get a free, no obligation, personalised quotation from PlumbProud

Grant Vortex Eco 16 21kW boiler

  1. Home
  2. Grant Vortex Eco 16-21kW
Plumbproud rating

68.17%

Grant Vortex Eco 16-21kW heat only Oil boiler

Our PlumbProud quality scoring system considers important factors like energy efficiency, the length of a manufacturer’s guarantee, likely running costs, and installed price to determine a boiler's value for money. This model has received 68.17% from our engineers.

We would expect this Grant Vortex Eco 16-21kW heat only boiler to cost £3,100 fully installed through PlumbProud, although it will cost more if the fit is complicated. We will provide you with a full quote before starting work, however.

Wondering if the Grant Vortex Eco 16-21kW is the right boiler for your home? Then speak to a professional here by getting in touch via email or call us on 01604 343053. You can also get a free quote by entering your postcode in the box on the page.


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 Vortex Eco 16-21kW heat only Oil boiler frequently asked questions

Is the Grant Vortex Eco 16-21kW a regular, combi or system boiler?

Suitable for a house or a flat, the Grant Vortex Eco 16-21kW heat only boiler is worth considering if you want a heat only boiler.

If your home has more than one bathroom or you have a large family which uses a lot of hot water, a heat only boiler (sometimes called a regular boiler, a conventional boiler or a standard 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 temperature, pressure and volume to all points will drop.

Heat only boilers allow you to program the times that you wish 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 and not choose 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 install a Grant Vortex Eco 16-21kW heat only boiler in my house or flat?

To determine that, we need to consider the size of the boiler. Size doesn't mean how big the boiler is - it means how big its "output" is.

This Grant Vortex Eco 16-21kW heat only boiler gets its power from oil and the power it's capable of producing is measured in kilowatts - the output rate is actually a kilowatt rate. The higher the output rate, the more kilowatts a boiler can use when heating water.

If you choose a boiler whose output rate is too low, it may not have enough power to make your water as hot as you would like. If you choose a boiler whose output rate is too high, you won't have to put up with lukewarm water but you will face higher oil bills.

The Grant Vortex Eco 16-21kW heat only boiler has an output level of 21 kW, so which types of property would it be appropriate for?

An experienced PlumbProud boiler engineer would recommend that this Grant Vortex Eco 16-21kW heat only boiler be installed in medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


What size is the Grant Vortex Eco 16-21kW boiler?

The Grant Vortex Eco 16-21kW is 837 mm in height, 635 mm in width and 350 mm in depth.

The Grant Vortex Eco 16-21kW heat only boiler is designed for discreet installation on the outside walls of your property. A large floor-standing outdoor boiler in the garden may deter some buyers when you come to sell your home because they would rather have that space for their families to enjoy.

For this reason, wall installation is fast becoming the preferred option for homeowners, and your PlumbProud engineer can do it for you.

Is this Grant boiler 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 Vortex Eco 16-21kW.

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.

How does the Grant Vortex Eco 16-21kW heat only 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.

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.

If you decide to install a Grant Vortex Eco 16-21kW heat only in your home, will you be helping the environment with your choice? Let’s have a look at the figures.

All boilers manufactured after April 2018 in the UK must be rated as an “A” on the SEDBUK grading system, subject to a minimum energy efficiency rating of 92% or above. Before that, the minimum rate was 88% - boilers with an energy efficiency of 88% or 89% were given a “B” rating. Boilers scoring 90% or more were given an "A" rating.

The energy efficiency rating for a boiler describes the amount of energy it uses and how much goes to waste in operation.

The Grant Vortex Eco 16-21kW has an efficiency rating of 90.1% with a SEDBUK grade of "A".

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 Vortex Eco 16-21kW is "A".

Does the Grant Vortex Eco 16-21kW heat only boiler come with a warranty?

The parts and labour warranty on the Grant Vortex Eco 16-21kW covers all repair-related costs for 2 years while the heat exchange warranty covers you for [Heat Exchange Warranty] years.


Grant Vortex Eco 16-21kW Oil heat only boiler specifications

Powered by GasOil
LocationExternal
Condensing?Yes
Efficiency rating90.1%
Band ratingA
LPG Compatible?No
P/L Warranty2 Years
Output in kW21 kW
Height837 mm
Width635 mm
Depth350 mm
MountingWall
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%

Combi boilers

Choose from the UK’s biggest range of combis

Heat only boilers

The ideal boiler perfect for the largest homes

System boilers

Ideal for 3+ bedroom, 2+ bathroom homes

Boiler quote

Free, no obligation quote from our engineer

Grant Vortex Eco 16 21kW boiler

We will not be beaten on price -
ask us about our PRICE GUARANTEE!

Grant Vortex Eco 16-21kW heat only Oil boiler

  1. Home
  2. Grant Vortex Eco 16-21kW
Plumbproud rating for this boiler
68.17%

On the PlumbProud boiler quality benchmark scoring system, we have rated this Grant Vortex Eco 16-21kW heat only boiler at 68.17%. Ratings are determined by considering a number of important factors including the energy efficiency, price installed, warranty length, and running costs of the boiler.

Provided the proposed installation is straightforward, we would anticipate that this Grant Vortex Eco 16-21kW heat only boiler will cost £3,100 fully installed through PlumbProud.

For a free, no-obligation quotation on this Grant Vortex Eco 16-21kW heat only boiler or for our professional advice on whether the Grant Vortex Eco 16-21kW is suitable for your property, please call 01604 343053, click here to email our team or enter your postcode into the quotation box on this page.


Installed price guideline
£3,100

Get your free quote

Grant Vortex Eco 16-21kW Oil heat only boiler specifications

Powered by GasOil
LocationExternal
Condensing?Yes
Efficiency rating90.1%
Band ratingA
LPG Compatible?No
P/L Warranty2 Years
Output in kW21 kW
Height837 mm
Width635 mm
Depth350 mm
MountingWall
ERP HeatA

Grant Vortex Eco 16-21kW heat only Oil boiler frequently asked questions

Is this Grant Vortex Eco 16-21kW boiler a combi, system or regular boiler?

Looking for a oil heat only boiler for your house or flat? If you are, the Grant Vortex Eco 16-21kW boiler may be worth considering.

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.

Should I install a Grant Vortex Eco 16-21kW heat only boiler in my home?

It's best to choose a boiler whose size or "output" is right for your home.

The more hot water and heat you want, the higher the output level of your boiler should be. Output is measured in kilowatts and it describes the maximum level of power your boiler has to heat water.

If your output level is too low, your boiler will not have the power it needs to get your water as hot as you want it, particularly when there's a lot of demand for it. Choose a boiler whose output level is too high and you'll have all the hot water you need but will be paying too much for it through higher oil bills.

Which types of property would this Grant Vortex Eco 16-21kW heat only boiler be appropriate for given its output of 21 kW?

Most heating engineers would recommend this Grant Vortex Eco 16-21kW heat only boiler as a suitable option for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


What size is a Grant Vortex Eco 16-21kW boiler?

The Grant Vortex Eco 16-21kW occupies a space of 837 mm high by 635 mm wide and 350 mm deep.

Many homeowners prefer external wall-mounted boilers over floor-standing external boilers which need a lot more room and often require you to sacrifice outside space in or near your garden. Choosing a floor-standing boiler may also put buyers off when you come to sell your property.

The Grant Vortex Eco 16-21kW heat only boiler is designed for wall mounting and your PlumbProud engineer can install it on the wall you choose.

Is the Grant Vortex Eco 16-21kW condensing or non-condensing?

The Grant Vortex Eco 16-21kW is a condensing boiler – we recommend to all clients that they choose the very latest condensing boilers because their efficiency continues to improve year after year.

Condensing boilers recycle heat from both water vapour condensation and flue exhaust gases via a secondary heat exchanger. With this heat, it performs other tasks like warming up colder water returning from your radiator without having to use more oil.

You will save money on your oil bills every year by choosing a condensing boiler as well as benefitting the environment.

Is the Grant Vortex Eco 16-21kW heat only rated as environmentally friendly?

As the British public has become more conscious of climate change, many homeowners consider the environment when choosing how to heat their homes.

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 the environmental impact of installing a Grant Vortex Eco 16-21kW heat only in your home be positive? Let's look at the numbers.

All new British boilers must perform to a legal minimum energy efficiency of 92% (a low to good SEDBUK "A" rating). Prior to April 2018, the target was 88% (86-90% = SEDBUK "B" and 90%+ = SEDBUK "A").

Efficiency ratings are intended to let consumers know how much energy a boiler uses in its day-to-day activities and how much energy goes to waste.

The Grant Vortex Eco 16-21kW was awarded an efficiency rating of 90.1%, equivalent to a SEDBUK grade of "A".

The Energy Related Products Directive (ERP) intends to reduce the amount of energy consumed by individual products over their entire lifetime, from the initial manufacturing process to final disposal and at all points in between.

The legislation is designed to encourage manufacturers to create products that are more environmentally friendly and which result in a reduction in harmful gas emissions.

The ERP rating for the Grant Vortex Eco 16-21kW is "A".

What warranty does the Grant Vortex Eco 16-21kW heat only boiler come with?

The Grant Vortex Eco 16-21kW boiler comes with a parts and labour warranty of 2 years.


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%
Menu