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Vaillant DHW Heat Exchanger 0020025041

Vaillant

Vaillant DHW Heat Exchanger 0020025041

Vaillant DHW heat exchanger for Ecotec Plus combi boilers, part 0020025041.

ConditionNew

At a glance

  • Part type: Heat exchanger
  • Also known as 1379936, N4833
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Hanicks code
0020025041
Manufacturer part no.
0020025041
Barcode
4024074508404

The Hanicks code is specific to the selected condition. Manufacturer part no. and barcode are shared by every condition.

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£237.07

£197.56 ex. VAT · VAT at 20%

In stock
Delivery
In stock. Order by 4pm Mon–Fri, 10:30am Sat for same-day despatch. Standard delivery usually takes 2-3 working days (Royal Mail Tracked 48).
Hanicks code
0020025041
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 DHW heat exchanger (part 0020025041) is a plate heat exchanger used in Vaillant combi boilers to transfer heat from the primary circuit to the domestic hot water supply. It is a Vaillant spare part designed for the Ecotec Plus range. This component plays a key role in delivering instant hot water on demand.

Signs this part needs replacing

  • No hot water or intermittent hot water supply
  • Water runs lukewarm despite the boiler firing
  • Reduced flow rate at hot taps
  • Visible leaks or scale deposits around the heat exchanger
  • Boiler lockout or error codes related to domestic hot water

Before you order

  • Check the GC number and serial number on your appliance to confirm compatibility.
  • Confirm the part number 0020025041 matches your existing heat exchanger.
  • 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.