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Vaillant Heat Exchanger 19 Plate 0020038572

Vaillant

Vaillant Heat Exchanger 19 Plate 0020038572

Vaillant 0020038572 19-plate domestic hot water heat exchanger for ecoTEC Plus and ecoTEC Pro combi boilers.

At a glance

  • Part type: Heat exchanger, 19 plate
  • Appliance family: Vaillant ecoTEC Plus and ecoTEC Pro combi boilers
  • Also known as 1383597, N9344-1
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
0020038572
Showing prices

£209.65

£174.71 ex. VAT · VAT at 20%

In stock
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Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Vaillant 0020038572 is a 19-plate domestic hot water heat exchanger used in the ecoTEC Plus and ecoTEC Pro combi boiler ranges. It transfers heat from the primary circuit into the mains-fed domestic hot water supply, so the plate stack sits directly in the path of the hot water draw-off. The part is supplied in refurbished condition.

Signs this part needs replacing

  • Domestic hot water runs hot and cold, or the temperature drifts during a draw-off
  • Reduced hot water flow rate at the tap compared with the cold supply
  • Water weeping from the plate stack or from the seals between the plates
  • Scale or debris blocking the secondary side, common in hard water areas
  • Boiler fault codes relating to the domestic hot water circuit or temperature sensing

Before you order

  • Check the GC number on the appliance data badge against the compatibility list, as the same boiler name can carry different GC numbers across revisions
  • Confirm the part number 0020038572 or one of the alternative numbers matches the component being replaced
  • Check whether the seals or gaskets on the existing connection are serviceable before refitting
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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