Ariston Clas HE 24kW Regular Heat Only Boiler & Flue

Item Code: 354920926

£299.00 Ex VAT £358.80 Inc VAT

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Traditional ‘open-vent’ heat only or regular boiler ideal for replacement or new installations.

Able to be range rated between 5.2 and 21.6 kW so suitable for a wide range of properties. Features a stainless steel heat exchanger and unrivalled 5 year guarantee.

The Advanced 'AUTO' function ensures intelligent management of the room temperature whilst guaranteeing maximum energy efficiency and offering energy savings.

By pressing the 'AUTO' button on the control panel, the boiler will automatically choose the ideal output for the central heating circuit by gradually increasing the power of the boileruntil the room reaches the set temperature, whilst guaranteeing no excessive peaks.


  • Supplied with standard horizontal flue
  • SEDBUK A rated
  • Rateable down to 5.2kw
  • Anti-frost device
  • Auto-diagnostic system & LED display
  • Two zone temperature management allows optimisation & easy upgrade of standard systems
  • Low NOx, Class 5
  • Unique 'AUTO' function optimises efficiency of boiler and system
  • 5 year manufacturers guarantee


Warranty Period 5 Year Guarantee
Heating Output (kw) 21.6kw
Weight (kg) 32
Width 470mm
Length 370mm
Height 720mm
Use Internal



  • CE
  • KIWA


  1. CS354920926 Ariston-Boiler-Brochure.pdf
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