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Vaillant Flue Restrictor 0020237687

Vaillant

Vaillant Flue Restrictor 0020237687

Vaillant flue restrictor 0020237687, intended for use only on liquid gas appliances.

At a glance

  • Also known as 1388392
Manufacturer part no.
0020237687
Showing prices

£52.93

£44.11 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Vaillant 0020237687 is a flue restrictor used in the flue system of compatible Vaillant gas appliances. It is intended for use only on liquid gas (LPG) appliances, where it controls flue gas flow through the appliance's flue arrangement. Fitting the correct restrictor is part of setting the appliance up to the manufacturer's flue configuration for the installation.

Signs this part needs replacing

  • The restrictor is missing, cracked, distorted or corroded
  • Combustion analysis readings fall outside the tolerance stated for the appliance
  • Flue gas readings suggest incorrect flue flow or recirculation
  • The flue restrictor has been removed or swapped during previous servicing and does not match the installation

Before you order

  • Confirm the appliance is a liquid gas (LPG) unit — this restrictor is only for liquid gas appliances
  • Check the appliance model and GC number against the manufacturer's parts list
  • Confirm the existing restrictor is absent, damaged or incorrect for the flue configuration
  • Verify the part number 0020237687 matches the component required

Not sure which part?

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