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    Ariston Clas HE Evo Combi Boilers

    You can expect to pay anything between £640.95 and £1,299.00 for the Ariston Clas HE Evo Combi Boiler, which includes VAT and excludes installation.

    Ariston Clas HE Evo

    The Ariston Clas HE Evo Combi is a high-performance condensing combination boiler that can be purchased with an output of 24kW, 30kW or 38kW.

    As it measures in at 810mm (H) x 490mm (W) x 420mm (D), the boiler is too big to fit inside a kitchen cupboard but it can be wall hung in a number of other areas within your property. What’s more, this model is a space-saving solution because it doesn’t need to be installed with a cold water tank or hot water cylinder.

    Clas HE Evo Combi prices typically range from £640.95 to £1,299.00 before installation fees are added. The boiler is guaranteed for 5 years from the purchase date but the warranty can be upgraded to 8 or 12 years if you want additional cover.

    Boiler Energy Efficiency Credentials

    Boasting an A rating for energy efficiency, the Ariston Clas HE Evo is designed to help you reduce not just your energy bills but also your carbon emissions. The appliance actually exceeds ErP requirements and features intelligent ‘AUTO’ controls that enable the boiler operation to quickly adapt to environmental conditions to ensure you save energy. This basically means that the boiler can maintain the perfect temperature in your home without wasting energy or money. If you want to boost efficiency and cost savings, you can use the boiler with a range of Ariston intelligent controls.

    Clas HE Evo Combi Technology and Main Advantages

    Small but mighty, this super-quiet model by Ariston comes with a stainless steel heat exchanger and an automatic by-pass. It also has an anti-frost device to protect the boiler from cold weather damage, as well as an auto-diagnostic system in case any faults occur and need to be identified.

    The range includes three output sizes with different maximum hot water flow rates, which are as follows:

    • Clas HE Evo 24kW Combi – 10.3 litres per minute
    • Clas HE Evo 30kW Combi – 12.9 litres per minute
    • Clas HE Evo 38kW Combi – 15.6 litres per minute

    This combi is equipped with a comfort mode to ensure the boiler delivers almost instant hot water, along with the AUTO function that enhances both performance and efficiency. It also has a backlit LCD display, time clock and an easy-to-use control panel with a selection of buttons to enable you to adjust your hot water and heating temperatures so that you can manage warmth and comfort.

    Is the Ariston Clas HE Evo Combi the Right Boiler Type and Size for Your Home?

    As the Clas HE Evo Combi is available in three outputs, it’s suitable for small, medium and large-sized properties. This boiler is also a great option for homes without much loft or storage space because you don’t need bulky tanks or cylinders. The 24kW unit is ideal for apartments and smaller dwellings with 1 bathroom and around 10 radiators, and the 30kW version should satisfy the needs of a medium home with 1 bathroom, 1 ensuite and up to 15 radiators. Then there’s the more powerful 38kW combi, which is best for larger properties with 2 bathrooms and greater heating and hot water requirements. However, this is only a rough guide, and you must ask a Gas Safe engineer to assess your typical usage habits prior to purchasing this model.


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    A-rated combi boilerSave money on your gas bills
    Stainless steel heat exchangerImproves performance and efficiency
    Auto function Consumes less gas and electricity
    Comfort mode Delivers hot water almost instantaneously
    Low level of operating noise Ideal for installation in or near busy rooms
    Clear display panel and intuitive buttons User-friendly
    Compatible with energy saving controls Alternative energy and cost saving options
    5-year parts and labour warranty Confidence and peace of mind
    Option to upgrade to an 8 or 12-year warranty Added peace of mind

    Our Honest Opinion of the Ariston Clas HE Evo Combi

    In addition to all of the benefits listed above, the Ariston Clas HE Evo Combi offers efficiencies of up to 90% and has best-in-class NOx emissions, making the boiler an energy-efficient and environmentally-friendly option. It can also manage up to three temperature zones at the same time, provided the appliance is installed with an optional Sensys controller (a remote control and system interface unit).

    But there’s more. The boiler is Energy Saving Trust endorsed and achieved Good Housekeeping Reader Recommended status in 2017. This means the Ariston Clas HE Evo Combi has been given the thumbs up by homeowners who have tested the appliance, with 90% saying they’re happy with the heating and hot water performance and 78% stating that they’re likely to recommend this unit to friends and family.

    Having taken everything into account, we’re really impressed with this combi – and it seems as though we’re not the only ones.

    Advice on Boiler Quotes and Gas Safe Engineers

    When obtaining Ariston Clas HE Evo Combi quotes, be sure to shop around so that you can compare prices and find the most competitive deal. It’s important to make sure you get a price on both the boiler and installation to avoid any nasty surprises further down the line. Also, you need to check that your installer is Gas Safe registered and legally permitted to work on gas appliances before allowing them into your home. To confirm this, ask to see the details on their ID card or run a search at the official Gas Safe Register website. If you want to save time, please don’t hesitate to use our free online service to get no-obligation quotes from reputable boiler providers and registered engineers.


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