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Ariston CLAS HE SYSTEM EVO 24 boiler

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Plumbproud rating

79.89%

Ariston CLAS HE SYSTEM EVO 24 System Gas boiler

According to our PlumbProud boiler quality scoring system, we rate this model 79.89%. We rank boilers using a number of different factors including price installed, manufacturer guarantees, energy efficiency, likely running costs, and more.

We would anticipate that this Ariston CLAS HE SYSTEM EVO 24 System boiler would cost you £1,800 fully installed through PlumbProud provided that the fitting is standard and with no complications.

We recommend that you speak to our friendly advisors by calling 01604 343053 to seek professional advice on whether the Ariston CLAS HE SYSTEM EVO 24 boiler is right for your home. Our team can also provide you with a free quotation for this Ariston CLAS HE SYSTEM EVO 24 System boiler. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


Installed price around

£1,800

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Ariston CLAS HE SYSTEM EVO 24 System Gas boiler frequently asked questions

Ariston CLAS HE SYSTEM EVO 24 - a regular, combi or system boiler?

Ariston’s CLAS HE SYSTEM EVO 24 is one you might consider if you’re looking for a system boiler for your house or flat.

System boilers are suitable for homes with a higher-than-average demand for central heating and water - for example, larger homes and larger families.

Combi boilers heat water on demand but the amount of water they can actually deliver to taps is determined by the mains water pressure, flow rate and power. System boilers instead use a hot water cylinder that stores and keeps water hot throughout the day. As long as you remember to program the times you want hot water and the cylinder still has water left in it, you should have hot water whenever you need it.

System boilers do not require a cold water storage tank either, unlike heat only boilers, meaning they're cheaper, quicker and easier to install.

Is the Ariston CLAS HE SYSTEM EVO 24 system boiler a suitable option for my house or flat?

Selecting the right boiler for your property means selecting a boiler that is the right "size". And, by size, we don't mean how big it is, we mean how powerful it is - its "output".

The output rate tells you how much energy your boiler has to use to provide you and your family with hot water and central heating. A higher output rate means that it can heat greater volumes of water.

Please be aware, though - if you choose a boiler whose output is too low, the water in your radiators and coming from your taps may not be warm enough. Conversely, if you choose a boiler with too high an output, you'll pay more for gas than is necessary.

The Ariston CLAS HE SYSTEM EVO 24 system boiler has an output level of 24 kW, so which types of property would it be appropriate for?

A heating engineer would recommend that this Ariston CLAS HE SYSTEM EVO 24 System boiler would be a suitable installation choice for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Ariston CLAS HE SYSTEM EVO 24 - size in millimetres

The size of the Ariston CLAS HE SYSTEM EVO 24 boiler is TBC mm tall, TBC mm wide, and TBC mm deep.

Is the Ariston CLAS HE SYSTEM EVO 24 condensing or non-condensing?

The Ariston CLAS HE SYSTEM EVO 24 is a condensing gas boiler - in fact, we recommend that you select this model or one of the latest condensing boilers on the market as the technology continues to improve over time.

Condensing boilers capture the heat still present in the flue exhaust gases and water vapour condensation created when the gas is burned and they recycle this back into the heating system to warm up the cold water re-entering the boiler from your radiators.

They're much more environmentally friendly and installing one results in much lower annual gas bills.

Is the Ariston CLAS HE SYSTEM EVO 24 system an environmentally friendly boiler?

How we heat our homes has become a pressing issue of concern for many homeowners worried about climate change and the environmental impact of their personal choices.

Central heating systems are responsible for 14% of greenhouse gas emissions in the UK. You may also be aware that the gas boilers we use emit dangerous nitrogen dioxide in large volumes in the bigger British cities.

Is the Ariston CLAS HE SYSTEM EVO 24 system an environmentally friendly choice for your home? 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 Ariston CLAS HE SYSTEM EVO 24 was given an efficiency rating of 90% and a SEDBUK grading of "A".

How long am I covered by the warranty for if the Ariston CLAS HE SYSTEM EVO 24 breaks down?

A parts and labour warranty of 5 years is included when you purchase the Ariston CLAS HE SYSTEM EVO 24 boiler through PlumbProud.


Ariston CLAS HE SYSTEM EVO 24 Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating90%
Band ratingA
LPG Compatible?Yes
P/L Warranty5 Years
Output in kW24 kW
MountingWall

The top 10 rated Gas System boilers

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

1Vaillant ecoTEC Plus 61295.72%
2Vaillant ecoTEC Plus 61595.20%
3Vaillant ecoTEC Plus 61894.37%
4Vaillant ecoTEC Plus 62493.33%
5Worcester Bosch Greenstar i System 9i92.89%
6Vaillant ecoTEC Plus 63092.75%
7Worcester Bosch Greenstar 4000 12kW92.50%
8Vaillant ecoTEC Exclusive IQ 62792.42%
9Vaillant ecoFIT Pure 61292.38%
10Vaillant ecoFIT Pure 61592.36%

Combi boilers

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Heat only boilers

The ideal boiler perfect for the largest homes

System boilers

Ideal for 3+ bedroom, 2+ bathroom homes

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Ariston CLAS HE SYSTEM EVO 24 boiler

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Ariston CLAS HE SYSTEM EVO 24 System Gas boiler

  1. Home
  2. Ariston CLAS HE SYSTEM EVO 24
Plumbproud rating for this boiler
79.89%

Using the PlumbProud boiler quality scoring system, we have rated this model at 79.89%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

This Ariston CLAS HE SYSTEM EVO 24 System boiler is likely to cost you £1,800 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.

To receive a free quote on the Ariston CLAS HE SYSTEM EVO 24 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
£1,800

Get your free quote

Ariston CLAS HE SYSTEM EVO 24 Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating90%
Band ratingA
LPG Compatible?Yes
P/L Warranty5 Years
Output in kW24 kW
MountingWall

Ariston CLAS HE SYSTEM EVO 24 System Gas boiler frequently asked questions

Is the Ariston CLAS HE SYSTEM EVO 24 boiler a combi, regular or a system boiler?

If you are searching for a system boiler for your house or flat, the Ariston CLAS HE SYSTEM EVO 24 is certainly one to consider.

System boilers need a hot water cylinder to work, with the most popular installation location for cylinders being in an airing or landing cupboard. Unlike heat only boilers though, they don't require a separate cold water tank to go in the attic, making them suitable if roof space is at a premium or if you're planning a loft conversion in the future.

System boilers use (often built-in) circulating pumps to distribute hot water to your taps and radiators. Fitting is cheaper and quicker too because you don't need to find room for a water tank. Unlike with a combi boiler, which heats water it draws from the mains instantly, you have to program a system boiler with the times you want hot water and heating.

Should I install a Ariston CLAS HE SYSTEM EVO 24 system boiler in my house or apartment?

Selecting the right boiler for your home means choosing a boiler that is the right size. And, by size, we don't mean how big it is, we mean how powerful it is - the "output".

Your boiler’s output is a measurement of the power it has available to it to heat the water you need for your radiators or for when you turn on a tap, bath or shower. A higher output rate means it has more power and can heat more water.

It's important to choose an output that matches the demand for water in your home because if your boiler has too low an output, you'll often find only lukewarm water comes out of your taps or heats your radiators. If it’s too high, you’ll be paying more for your gas than you need to.

The Ariston CLAS HE SYSTEM EVO 24 system has an output of 24 kW, so which types of property would this Ariston CLAS HE SYSTEM EVO 24 System boiler be appropriate for?

An experienced Gas Safe boiler installer would recommend that the Ariston CLAS HE SYSTEM EVO 24 system boiler would be an ideal installation option for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


What are the dimensions of the Ariston CLAS HE SYSTEM EVO 24 boiler?

The Ariston CLAS HE SYSTEM EVO 24 occupies a space of TBC mm high by TBC mm wide and TBC mm deep.

Is the Ariston CLAS HE SYSTEM EVO 24 non-condensing or 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 Ariston CLAS HE SYSTEM EVO 24 is a condensing gas 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 Ariston CLAS HE SYSTEM EVO 24 system boiler environmentally friendly?

How we heat our homes and the effect that has on climate change has become important to many homeowners worried about the environment.

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.

Would choosing a Ariston CLAS HE SYSTEM EVO 24 system help the environment? Let’s see what the performance figures suggest.

All boilers manufactured in the UK from April 2018 must achieve a SEDBUK “A” grade and an energy efficiency rating of 92% or above. Before that, the minimum was 88% - efficiency ratings of 88% and 89% were scored a “B” and 90%+ an "A".

A boiler's energy efficiency rating describes how much energy it uses and wastes during its standard operation.

The energy efficiency of the Ariston CLAS HE SYSTEM EVO 24 was rated at 90% with a SEDBUK grading of "A".

How long is the warranty offered by the manufacturer for the Ariston CLAS HE SYSTEM EVO 24 boiler?

Ariston offers a parts and labour warranty of 5 years on the Ariston CLAS HE SYSTEM EVO 24.


The top 10 rated Gas System boilers

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

1Vaillant ecoTEC Plus 61295.72%
2Vaillant ecoTEC Plus 61595.20%
3Vaillant ecoTEC Plus 61894.37%
4Vaillant ecoTEC Plus 62493.33%
5Worcester Bosch Greenstar i System 9i92.89%
6Vaillant ecoTEC Plus 63092.75%
7Worcester Bosch Greenstar 4000 12kW92.50%
8Vaillant ecoTEC Exclusive IQ 62792.42%
9Vaillant ecoFIT Pure 61292.38%
10Vaillant ecoFIT Pure 61592.36%
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