Compare Ariston Clas HE Regular Boiler Prices And Expert Review

What is a Boiler?

A boiler is a closed vessel in which water or any type of fluid is heated. It actually makes a separate way for the vaporized fluid to exit the boiler and use them in various processes or heating applications, central heating, boiler-based power generations, cooking, sanitizing, etc.

The source of heat for a boiler is usually combustion of any of the natural fuel, such as wood, coal, oil or natural gas. Electric steam boilers use immersion-type heating elements. And in some places, nuclear fission is also used for generating steam. It can also be used at home for heating domestic water and eliminate the usage of a separate tank or cylinder.

So for industrial use, a boiler is an important part of it. A good boiler is necessary for the industry to run smoothly as well as for home nowadays. So, we are going to analyze the Ariston Clas HE regular Boiler, and conclude whether it’s compatible and better than other competitors or not. 

Buying Guide

We may help you on finding the best boiler for your home. From picking the right size to the ideal type, we will give the best advice always. A new boiler is likely to be one of the most expensive household purchases you’ll make. So it’s important to choose the right boiler from the right brand at the right price. 

Most UK households have a gas heating system equipped with a gas boiler. But if you’re one of the estimated 4.3m households not connected to the UK’s gas network, there are alternatives.  These include fitting an oil boiler, liquid petroleum gas or LPG boiler, or a wood-burning stove fitted with a back boiler.

Types of gas boiler

There are three main types of gas condensing boiler to choose from: a Combi (combination), system and conventional. 

  1. A combination boiler, commonly known as a Combi boiler, heats water as you need it and eliminates the need for a storage tank. This provides heat for your radiators and domestic hot water on demand. If you live in a small home with only one bathroom or live on your own or with only one other person, a standard Combi boiler without a hot water tank will usually be the best choice.
  2. Heatonly (conventional) boiler will have a hot water storage cylinder and also a large cold water feed tank, usually in the loft. A heat-only boiler means you will have a hot water tank or cylinder where hot water can be stored for later use. 
  3. A system boiler is much like a heat-only boiler, but it doesn’t require the extra space you need for a cold water storage tank, but more components are built-in. This can make the system boilers easier to install than conventional ones and they tend to take up less space.

If your home is larger or there are more than two people living in it, then a heat-only or system boiler is usually a better option. 

Why is boiler efficiency important?

If you have gas central heating, your boiler will account for around 60% of your home’s CO2 emissions*. This makes your choice of boiler a key priority if you’re looking to cut your energy bills and carbon footprint. Replacing an old-fashioned non-condensing boiler with a modern condensing system can improve efficiency by as much as a third, and will save you a significant amount on your energy bills.

  1. The heating and hot water capabilities of the boiler: The physical size of your boiler and whether it will fit in the space you have it destined for.  The correct heating size of the boiler will be something unique to you and your home, as it depends on things such as how many bathrooms you have and how many people you live with. This is something your heating engineer can help you with, and they will be key to making sure you achieve your hot water and heating requirements.
  2. Buying a reliable boiler: We know that when it comes to buying a new boiler, reliability and dependability are the most important factors that will influence which boiler you must buy. So we do intense research every year to separate the good from the bad brands in terms of reliability. We want to ensure every consumer spends this huge amount on the right brand. The more reliable your new boiler, the less money you will have to shell out on expensive repairs. If you choose the most reliable brand of boiler, 63% are likely to still be fault free after six and a half years.
  3. Get your boiler engineer’s opinion and consider their answer carefully: your boiler engineer will be an invaluable source of information during the buying process. He or she will be able to guide you to make the best choice on the type and size of boiler you need. It’s always good practice to ask your heating engineer what size boiler they think best fits your requirements.

What should I consider?

Always get at least three quotes and make sure they include all costs, including any call-out fees. Don’t be taken in by any headline discount figures – look at the total price of the boiler and labor charges. You may find that some installation companies, including services offered through British Gas and other energy companies, will suggest a replacement boiler for you rather than allowing you to choose your preferred model. This is because many heating engineers are incentivized to install



This Ariston regular (conventional) boiler is efficient and innovative. It has the CLAS HE advanced control system and AUTO function technology that will help you to save on you bill. Also it has an elegant design and compact size, and a great replacement in an open vented system.


  • AUTO function technology
  • Stainless steel heat exchanger
  • Easy to use and install
  • Compact and quiet
  • ‘A’ ErP rated for optimum energy efficiency
  • Two temperature zone capability
  • Auto-diagnostic system
  • Anti-frost device
  • Range of wired and wireless controls
  • Energy saving
  • Elegant design


  • Will not fit in small apartments or properties


  • It has a heat exchanger that is made from stainless steel to protect the component from corrosion. This will help you to save on maintenance costs and increase the life expectancy of the boiler.
  • The boiler incorporates an anti-frost device to protect the boiler from collecting extra frost during winter times.
  • It has two temperature zone capability that helps to optimize the heating control by allowing you to set different heating times in two areas of your home.
  • It also has a user panel with backlit display to allow you to adjust the temperature, along with control knobs and buttons to make the setting process easier.

Key Specifications

  • Height: 595mm
  • Width: 400mm
  • Depth: 295mm
  • Fuel: gas
  • Weight: 28kg
  • Boiler central heating output: 22kW
Product namePrime eligibleProduct rating by usProduct price
Ariston  Vision Combi Boiler (25kW)  yes4.5/5$805.02

How We Examined The Product To Recommend You

Ariston Clas has many impressive features while saving your money. So the question arises here is are those features really worth it? For that we tested this boiler based on some important points. 


Brands and companies always focus on customer satisfaction, and customers usually gets satisfaction when they get a good product in affordable price. The Ariston Clas costs between $825.92, which is comparatively cheaper Boiler in the market. In low-budget this is a good boiler that also provide 5-year warranty.


The second most important thing that we needed to test was the efficiency test. The efficiency rating of this boiler has been set to 90.4%. It is an A ErP rated boiler and energy saving trust recommended.

It has auto function system that ensures a comfortable temperature to reach inside your home in the quickest way possible and without wasting much energy and help you to save your money on your fuel bills.

Another feature that is worth your money is the two temperature zone technology. It enables two zones to be managed independently. It will not only saves your bill but also carbon emission.

Design and size

The Ariston regular boiler is simple but elegant in style. It compact in size, but still it is preferable for large houses and not small apartments. It is quiet and quick; you can immediately get results after turning it on. 

What Industry Influencers Say About Ariston Vision Combi Boiler?

According to some industry influencers, the Ariston is a very affordable conventional boiler that has adopted many different innovative ways to make it efficient and cost-saving. It also has a decent period of warranty and servicing, which makes it very reliable than others.

Today, Ariston has an extensive range of wired and wireless controls, making this boiler very efficient. Maximum CO2 emissions in the world come from our homes. You can significantly lower the carbon emission by updating your old boiler with the Ariston boiler. But it focuses basically on the UK and Ireland market and their needs. It goes through a double test before it leaves the factory, along with ISO 9001 approved and supports the ‘Benchmark’ initiative. It is a member of the heating and hot water industry council, the Gas Safe Register and the RGII.

Also according to the experts, if an overall product is cheaper, then the boiler would be made of cheap materials. This will reduce the durability of the boiler and give your pocket more pressure for maintenance and servicing charges. So, it is better to have a good expensive boiler that would stay with you at least a decade or more.


  • How long do Ariston boilers last?

Ans: Some models of Ariston boilers come with standard 2 years warranty and some of the models have 5 years too.

  • What does E and C mean in the Ariston boilers?

Ans: ‘C’ stands for Central heating temperature adjustment and ‘E’ means Comfort Mode selector.

  • Are Ariston boilers good choice for smaller homes?

Ans: no, Ariston boilers are larger in size and have a separate tank that is very good for big properties with multiple bathrooms. For smaller homes and apartments combi boilers are best option.

  • What happens when the pressure in boiler gets too high?

Ans: the water pressure inside a boiler system should usually be somewhere between 1 and 1.3 bar (still check the manual to find the optimum range according to the model). If it’s too high or low from the range, the system won’t work efficiently, because that’s the range at which all the components are meant to operate.

  • How to set the temperature on Ariston boiler?

Ans: the temperature in the domestic water boiler can be adjusted using the hot water temperature selector. Rotate the temperature selector clockwise to increase the temperature and counter-clockwise to decrease the temperature.

  • Where are Ariston Boilers made?

Ans: Italy.

  • Does bleeding a radiator reduce boiler pressure?

Ans: if you bled your radiators recently, you may have lost some pressure. That’s because when you bleed a radiator, air is released, which lowers the pressure in your boiler system.

  • How much does it cost to replace a pressure relief valve?

Ans: a replacement valve costs around $20 and calling in a professional could bring your cost up to $200. Ariston in this case has a very expensive replacement valves.

Stories From The Real World Use Cases

1) Harry reviewed the boiler by saying –

The boiler is an excellent value and has cut the gas bill by a large amount. Satisfied with it and very pleased with the performance of the boiler so far.

He gave it 4.5/5 stars

2) Georgia reviewed the boiler by saying –

I am personally very satisfied with this boiler and repair service has been excellent. My previous boiler was not this kind of user friendly. It Seems to be quite efficient and energy saving, so far no problems even after servicing regularly.

She gave it 4/5 stars


Ariston boiler is a regular boiler that is best suited for larger properties with more than 2 bathrooms, so if you have such big property or house Ariston can be the best choice you can make to give your home warm comfortable temperature water all the time. It is efficient and effective. The qualities and features are the latest addition that will make your experience smooth and user friendly with the boiler. The price is comparatively higher, but it will be worth it when it will reduce your bill expenses. Make sure you read the buying guide at first and then go for the product details and review, because the regular boiler is not suited for all types of home, reading the buying guide will give you a rough idea about your need and then select according to your needs.

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