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Baxi DHW 10 Plate Heat Exchanger Assembly 7661816

Baxi

Baxi DHW 10 Plate Heat Exchanger Assembly 7661816

Baxi 7661816 DHW 10 plate heat exchanger assembly for 224 and 424 combi boilers.

At a glance

  • Also known as 1132187
Manufacturer part no.
7661816
Showing prices

£98.56

£82.13 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 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 Baxi 7661816 is a domestic hot water (DHW) plate heat exchanger assembly with a 10-plate stack. It is fitted to Baxi 224 and 424 combi appliances, where it transfers heat from the primary circuit to the domestic hot water supply. The assembly is supplied as a complete unit for direct fitting to the appliance.

Signs this part needs replacing

  • Domestic hot water runs hot and cold or fluctuates in temperature
  • Reduced hot water flow rate at the taps compared with normal operation
  • Water leaking from the plate stack or the connections around the exchanger
  • Scale or debris build-up restricting flow through the plates
  • Poor heat transfer between the primary circuit and the DHW side

Before you order

  • Confirm your appliance model against the fit list above before ordering
  • Check the existing part number on the appliance matches 7661816
  • Verify the plate count of the fitted exchanger is 10
  • Inspect the seals and connections around the exchanger for condition before fitting

Not sure which part?

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