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Alpha 12-Plate Exchanger Kit 3.021692

Alpha

Alpha 12-Plate Exchanger Kit 3.021692

Alpha 12-plate DHW heat exchanger kit, part 3.021692, for Alpha ECO and InTEC boilers.

At a glance

  • Also known as 1258559
Manufacturer part no.
3.021692
Showing prices

£174.64

£145.53 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 Alpha 3.021692 is a 12-plate domestic hot water heat exchanger kit manufactured by Alpha. It transfers heat from the boiler's primary circuit to the domestic hot water supply in Alpha ECO and InTEC appliances. The plate pack provides the surface area required to raise mains cold water to usable hot water temperature on demand.

Signs this part needs replacing

  • Domestic hot water runs hot then cold, or temperature fluctuates at the tap
  • Reduced hot water flow rate compared with the cold supply
  • Water weeping from the plate pack or its gasket seals
  • Scale or debris blocking the plate channels, causing poor heat transfer
  • Hot water takes noticeably longer to reach temperature

Before you order

  • Confirm your boiler model against the manufacturer's parts list
  • Check the plate count required for your appliance, as plate counts differ across variants
  • Inspect the primary and DHW connections for scale or debris before fitting
  • Verify the existing exchanger's part number where it is still legible

Not sure which part?

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