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Vaillant Plate To Plate Heat Exchanger 0020127204

Vaillant

Vaillant Plate To Plate Heat Exchanger 0020127204

Vaillant plate to plate heat exchanger, part number 0020127204, for VWL 45/1 A 230V appliances.

At a glance

  • Appliance family: VWL 45/1 A 230V
  • Also known as 1385812
Manufacturer part no.
0020127204
Showing prices

£1,417.73

£1,181.44 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 0020127204 is a plate to plate heat exchanger used in Vaillant heat pump appliances. It transfers heat between two separate water circuits across a stack of corrugated plates, keeping the circuits sealed from one another. It is fitted to the VWL 45/1 A 230V range.

Signs this part needs replacing

  • Domestic hot water temperature that fluctuates or fails to reach setpoint
  • Reduced flow rate or increased pressure drop across the heat exchanger
  • Visible water or scale deposits around the plate pack or connections
  • Cross-contamination between the primary and secondary circuits
  • Repeated scale-related blockages after flushing

Before you order

  • Confirm the appliance model matches one of the fit lines above
  • Check the part number on the existing component against 0020127204
  • Inspect the connections and mounting points for damage before fitting
  • Verify the fault is with the heat exchanger and not the pump, diverter or controls

Not sure which part?

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