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Ferroli Flow Restrictor 39844100

Ferroli

Ferroli Flow Restrictor 39844100

Ferroli flow restrictor rated at 14 LPM, fitted to Modena, T-ONE and Twist PRO gas boilers.

At a glance

  • Also known as 3510223
Manufacturer part no.
39844100
Showing prices

£32.40

£27.00 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 Ferroli 39844100 is a flow restrictor rated at 14 litres per minute, used in Ferroli gas boilers. It regulates the domestic hot water flow rate through the appliance so the boiler stays within its designed operating parameters. It is fitted across the Modena, T-ONE and Twist PRO ranges.

Signs this part needs replacing

  • Reduced domestic hot water flow rate at the taps
  • Fluctuating or inconsistent hot water temperature
  • Boiler cycling or cutting out during hot water draw-off
  • Boiler failing to fire or locking out on a hot water demand
  • Visible scale or debris build-up on the restrictor

Before you order

  • Confirm your boiler model and GC number against the fitment list above
  • Check that the existing restrictor is rated at 14 LPM
  • Verify the part number 39844100 on the component being replaced

Not sure which part?

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