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Alpha Burner Assembly 1.019121

Alpha

Alpha Burner Assembly 1.019121

Alpha burner assembly, part number 1.019121, for HE CB25, HE SY25 and HE25 LPG boilers.

At a glance

  • Also known as 1258159
Manufacturer part no.
1.019121
GC number
H28-376
Showing prices

£96.04

£80.03 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 1.019121 is a burner assembly for Alpha gas boilers. It sits in the combustion chamber and delivers the gas/air mixture across the burner surface for ignition and sustained combustion. This assembly is specified for the LPG versions of the HE CB25, HE SY25 and HE25 appliances.

Signs this part needs replacing

  • Flame burns yellow or lifts away from the burner surface instead of holding a steady blue flame
  • Sooting or blackening around the burner and heat exchanger
  • Combustion readings that fall outside the appliance's specified tolerance and cannot be corrected by servicing
  • Visible corrosion, cracking, distortion or blocked ports on the burner body
  • Repeated ignition failure or flame instability traced to the burner

Before you order

  • Confirm the appliance model and GC number against the data badge before ordering
  • Check that the boiler is the LPG variant, as this assembly is listed for LPG models only
  • Inspect the existing burner and compare the part number marked on it with 1.019121
  • Confirm the burner is the cause of the fault rather than gas valve, ignition or air supply issues

Not sure which part?

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