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Vaillant 065153 Heat exchanger dhw (20 plates)

Vaillant

Vaillant 065153 Heat exchanger dhw (20 plates)

Vaillant 065153 20-plate secondary heat exchanger for Turbomax Plus 837E VUW 362/2-5 boilers, transferring heat to the domestic hot water supply.

At a glance

  • Part type: Secondary heat exchanger
  • Also known as 1372676, N8815-1, VAILLANT065153
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
065153
Showing prices

£149.71

£124.76 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
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 065153 is a secondary heat exchanger built with a 20-plate stack, manufactured by Vaillant for its domestic boiler range. In a condensing appliance the secondary heat exchanger takes heat from the primary circuit and passes it to the domestic hot water, so the plate pack sits on the DHW side of the boiler. It is a serviceable component, replaced when the plates become scaled, restricted or begin to weep.

Signs this part needs replacing

  • Hot water runs cool or fluctuates in temperature while the heating circuit performs normally
  • Reduced hot water flow rate or pressure at the taps
  • Water weeping from the plate stack or from the surrounding connections
  • Scale or debris restricting flow through the plates
  • Boiler fault codes linked to domestic hot water or temperature differential

Before you order

  • Confirm the GC number on the appliance data badge matches 47-044-28 or 47-044-28 R3
  • Check the part number 065153 against the component being removed
  • Inspect the plate seals and gaskets and renew them if they are disturbed during the swap
  • 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.