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Vaillant Tube, Hex Inlet 0020231129

Vaillant

Vaillant Tube, Hex Inlet 0020231129

Vaillant heat exchanger inlet tube, part 0020231129, for HOME Combi and HOME System appliances.

At a glance

  • Part type: heat exchanger inlet tube
  • Appliance family: Vaillant HOME Combi and HOME System
  • Also known as 1388184
Manufacturer part no.
0020231129
Showing prices

£16.27

£13.56 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 tube, hex inlet (part 0020231129) is a heat exchanger inlet tube used on Vaillant HOME series appliances. It carries water into the heat exchanger as part of the appliance's primary water circuit. It is listed by Vaillant under the part number 0020231129.

Signs this part needs replacing

  • Visible weeping or water staining at the tube or its connections
  • Corrosion, pitting or scale build-up on the tube surface
  • A leaking joint that persists after the connection has been remade
  • Discolouration or deformation of the tube indicating overheating
  • Water loss from the appliance traced to the heat exchanger inlet area

Before you order

  • Confirm your appliance model against the fit list above before ordering
  • Check the part number against the manufacturer's parts list for your appliance
  • Inspect the seals and adjacent connections while access is available, as these may also need attention
  • Verify the tube is the correct item for the heat exchanger on your model

Not sure which part?

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