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Ariston Clas HE 24 kW Regular Conventional Gas Boiler with Free Horizontal Flue Kit - 5 Years Warranty ClasHE-R24

Quickfind: 1483614 SKU: ClasHE-R24

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Product Information

What stands out

  • Unique 'AUTO' function optimises efficiency of boiler and system
  • 24 KW Conventional Natural Gas Boiler
  • Easy to use and install
  • Great for replacing an existing regular gas boilers
  • 'A' ErP rated for optimum energy efficiency
  • Anti-frost device
  • Energy saving trust recommended
  • Stainless steel heat exchanger
  • Two temperature zone capability
  • Auto-diagnostic system
  • Intuitive button layout
  • FREE Ariston Standard Horizontal Flue Kit worth  (3318073)
  • High efficiency pump
  • Optional mechanical clock with 24 hrs on/off timer
  • Ariston net compatible
  • Easy installation and maintenance
  • Complete with an exceptional 5 year guarantee from Ariston for total peace of mind

The details

Conventional boilers are the most traditional form of heating in the UK. A conventional boiler is also sometimes called a regular boiler or heat only boiler. This type of boiler uses hot and cold water storage tanks, usually installed in your home's loft or in a cupboard. The boiler unit is plugged into your mains, which supplies the water to be used in your home.
The boiler fires up by igniting its gas. The heat exchanger warms up the water. A pump transports the water to the hot water storage tank for use throughout the day. When you set your thermostat, the hot water moves to through your radiators, emitting its heat energy to warm up the room. The hot water is also directed to water outlets in your bathroom and kitchen when you turn on a tap.
Although they are still in use today, their popularity has fallen recently in favour of combi boilers. Despite this, a conventional boiler could still serve your heating needs effectively. Ariston HE conventional boilers are ideal as replacement boilers if you do not want to redesign your heating system.

The Ariston Clas HE Regular 24 Conventional Gas Boiler comes from the exciting Clas HE range of Ariston Gas Boiler. The simple controls, backlit LCD display, pressure gauge, 24 hours clock timer and intuitive button layout make it easy to manage warmth and comfort to your home. Stylish and compact, the Clas HE helps to cut energy bills and reduce carbon emissions. 
A unique AUTO function is used to optimise the efficiency of the boiler.
Lightweight and easy to install, the new boiler also has all connections in the same places – enabling an easy retrofit in place of an existing similar Ariston boiler.
Boiler Pack comes complete with £50 worth of Free Accessories
FREE Ariston Standard Horizontal Flue Kit (3318073)


Stainless steel heat exchangers are exceptionally robust and operate well in a wide range of pH values, providing resistance to corrosion.

Essential info

  • ErP Efficiency: 90.1%;
  • ErP: A
  • Conventional Regular Boiler
  • Fuel Type: Natural Gas / LPG Ready
  • Central Heating Output: (kW) 24
  • Manufacturer Product Number: 3300748 / 3318073
  • Shipping Weight (kg) 32.3
  • Product Height (mm) 595
  • Product Width (mm) 400
  • Product Depth (mm) 295
  • Weight: 28 kgs
  • Warranty ( Years ) 5
  • Controls: Keys
  • Display: LED Display
  • Built in mechanical clock with 24 hrs on/off timer
  • Standard Horizontal Flue Kit included
  • Installation Type: Wall Mounted / Vented

A Gas Safe registered engineer must be used to install this appliance. We would advise checking the installers licence number against the Gas Safe Register.

Item Code:

Tech Spec

Key Information
Boiler Type Regular
Fuel type Gas
Boiler Capacity (Kw) 24
BTU (British Thermal Unit) 82000
Installation Type Wall mounted
Colour White
Brand Ariston
Display type LCD
Energy Rating A
Power 220-240v 50hz
Warranty 5
Dimensions & Weight
Weight (Kg) 32
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