Is the Grant VortexBlue 36kW a combi boiler, system boiler or regular boiler?

The Grant VortexBlue 36kW boiler is a combi boiler you may wish to consider when looking for a new boiler for your house or flat.

In the past, most boilers needed one or more storage tanks to operate - one to store warm water and the other for storing water to be heated later. But storage tanks are problematic in properties where space is at a premium and particularly where there is no loft. Many properties in the UK are small and so manufacturers introduced combi boilers in the 1970s to eliminate the need for tanks.

With a combi boiler, the hot water for your radiators and taps is delivered on demand. The boiler instantly heats water it draws directly from the mains internally. It then distributes the heated water around your home at mains pressure as you need it.

It is important to bear in mind that, while combi boilers have many benefits, they can only heat a certain volume of water at any given time. This means that, if you run a shower at the same time as someone else is doing the washing up in the kitchen, the volume of water passing to each point will drop, causing a fall in pressure.

Would the Grant VortexBlue 36kW combi be a suitable boiler 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 36kW combi is 36 kW, so which types of property would this Grant VortexBlue 36kW Combi boiler be appropriate for?

Most Gas Safe engineers would suggest that the Grant VortexBlue 36kW combi boiler would be a suitable choice for installation in larger properties including detached homes with 15 or more radiators and two or more bathrooms.

You'll also need to be sure to choose a combi boiler with the right flow rate for your home.

The flow rate indicates the maximum volume of hot water (measured in litres per minute) that your boiler can distribute at any given time. This means that if you and your family are likely to be using several taps and showers simultaneously or you have a lot of radiators, you need a boiler with a high flow rate. This Grant VortexBlue 36kW Combi boiler's flow rate is 20 L/m.

As with all combi boilers, the Grant VortexBlue 36kW is only able to heat and distribute water at the rate at which it actually enters your property.

For this reason, you shouldn't purchase a boiler with a very high flow rate if the flow rate in your mains pipes is lower because the extra capacity doesn't mean it can draw more water from the mains pipes.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.

What is the size of the Grant VortexBlue 36kW?

The Grant VortexBlue 36kW is 945 mm in height, 658 mm in width and 966 mm in depth.

External, floor-standing combi boilers like the Grant VortexBlue 36kW provide homeowners with more indoor space (they're installed outdoors) and reduce noise pollution (you can't really hear them from inside your house). They are also easier for engineers to work on if needed, while carbon monoxide leaks are less likely to pose a safety threat to your family because the gas disperses outside.

This model's weatherproof housing ensures protection from the British climate, reducing the likelihood of water ingress and rusting. And, since the oil is stored outdoors, there is minimal risk of leakage occurring inside your home that can cause significant damage as well as unpleasant odours which are hard to eliminate.

Is the Grant VortexBlue 36kW a condensing or non-condensing boiler?

Condensing oil boilers like the Grant VortexBlue 36kW are environmentally friendlier and cheaper to run so, if possible, we strongly recommend that you choose this or one of the very latest models.

Condensing boilers are much more efficient and economical to run because they contain a secondary heat exchanger that captures and recycles the warmth still present in the flue exhaust gases and the water vapour condensation for re-use, meaning that they use less oil to run.

Is the Grant VortexBlue 36kW combi rated as environmentally friendly?

More and more homeowners are aware of the importance of how we heat our homes and its impact on climate change and other environmental issues.

With central heating being responsible for 14% of greenhouse gas emissions in the UK, your choice of boiler matters. Gas boilers are also responsible for the significant atmospheric volumes of dangerous nitrogen dioxide emissions in larger British cities.

Will you be helping the environment if you decide to install a Grant VortexBlue 36kW combi in your home? Let’s look at the figures.

Boilers manufactured after April 2018 in the UK must achieve an "A" on the SEDBUK grading system as well as score a minimum of 92% on a separate energy efficiency test. Prior to that, the minimum was 88% - boilers rated at 88% and 89% were given a “B” rating (90% and higher were given an "A").

An energy efficiency rating describes how much energy the boiler uses and how much it wastes when in use.

The Grant VortexBlue 36kW was awarded an efficiency rating of 94.5% with a SEDBUK grading of "A".

The Energy Related Products (ERP) Directive is a European directive which applies to all products that consume energy over their lifetime.

It encourages companies to create products that are environmentally friendlier at all life cycle stages, including initial manufacturing and end use through to final disposal, with the aim of reducing harmful gas emissions.

The Grant VortexBlue 36kW is rated "A" for heat and "A" for water.

What warranty does the Grant VortexBlue 36kW combi boiler come with?

The Grant VortexBlue 36kW boiler offers a parts and labour warranty of 2 years.