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Alpha Primary Heat Exchanger 1.021960

Alpha

Alpha Primary Heat Exchanger 1.021960

Alpha primary heat exchanger, part number 1.021960, for HE CB25, HE SY25 and HE25 LPG boiler models.

At a glance

  • Appliance family: HE / CB25
  • Also known as PRIMARY-HEAT-EXCHANGER-HE-CB25, 1257725
Manufacturer part no.
1.021960
GC number
H28-379
Showing prices

£268.51

£223.76 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 Alpha 1.021960 is a primary heat exchanger used in Alpha HE and CB25 series gas boilers. It transfers heat from the combustion gases into the boiler water circuit, forming the main heat transfer component of the appliance. It is supplied as a single unit for replacement where the existing exchanger is scaled, blocked or leaking.

Signs this part needs replacing

  • Kettling or banging noises from the boiler during heat-up
  • Localised overheating or repeated overheat lockouts
  • Water weeping or staining around the exchanger body or its seals
  • Poor domestic hot water or heating output despite correct burner operation
  • Sludge or heavy scale restricting flow through the waterways

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the existing part number on the component matches 1.021960
  • Verify the appliance is the LPG variant, as listed
  • Inspect associated seals and gaskets 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.