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Ariston Venturi D: 14mm 65105894

Ariston

Ariston Venturi D: 14mm 65105894

14 mm venturi for Ariston CLAS HE R 12 gas boilers, part number 65105894, fitted in the fan and combustion air circuit.

At a glance

  • Also known as 1579809
Manufacturer part no.
65105894
Showing prices

£45.71

£38.09 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Ariston 65105894 is a 14 mm venturi used in the fan and combustion air circuit of Ariston CLAS HE R gas boilers. It creates a controlled pressure differential that the boiler uses to monitor air flow through the fan. It forms part of the fan and air pressure sensing arrangement rather than a complete fan assembly.

Signs this part needs replacing

  • Boiler locks out or fails to fire, with fan or air pressure related fault codes
  • Fan runs but the boiler does not prove air flow and will not ignite
  • Whistling or unusual noise from the fan or air intake area
  • Visible blockage, debris or damage at the venturi
  • Intermittent operation traced to the air pressure circuit

Before you order

  • Confirm the boiler model is Ariston CLAS HE R 12 NG or CLAS HE 12R
  • Check the GC number against the appliance data badge
  • Confirm the existing venturi is 14 mm
  • Establish whether the fault lies with the venturi or the wider fan assembly

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.