Alpha
Alpha burner, CD25 1.023999
Genuine Alpha burner for the CD 20S, CD25C, CD25X and InTec 24X, 26C and 30C boilers, part number 1.023999.
At a glance
- Also known as 1257743
- This is gas-related work and must be carried out by a Gas Safe registered engineer
Showing prices
£118.76
£98.97 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 burner mixes gas and combustion air and burns them to heat the primary heat exchanger. It is a genuine Alpha part, number 1.023999.
Signs this part needs replacing
- Poor combustion, sooting, or the boiler failing a flue gas analysis
- The burner failing to ignite reliably, or repeated ignition lockouts
- Visible corrosion, cracking or damage to the burner
Before you order
- Isolate the gas supply before removing the burner
- This is gas-related work and must be carried out by a Gas Safe registered engineer
- Replace the burner seal/gasket alongside the burner where one is fitted
Compliance
| GC number | E94-407 |
|---|---|
| Alternative numbers | BURNER-CD25, 1257743 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA CD12S | — | — | — | |
| ALPHA ALPHA ECO | — | — | — | |
| ALPHA ALPHA ECO BOILER | — | — | — | |
| ALPHA ALPHA INTEC 12S LPG | — | — | — | |
| ALPHA ALPHA INTEC 18S | — | — | — | |
| ALPHA ALPHA INTEC 18S LPG | — | — | — | |
| ALPHA ALPHA INTEC 24X | — | — | — | |
| ALPHA ALPHA INTEC 26C LPG | — | — | — | |
| ALPHA ALPHA INTEC 28X | — | — | — | |
| ALPHA ALPHA INTEC 30C LPG | — | — | — |
Showing 10 of 22 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
manual
ALPHA appliance manual — ALPHA ECO BOILER
manualmanualALPHA appliance manual — CD20S (GC 41-532-18), CD20S (LPG) (GC 41-532-19)
manualmanualALPHA appliance manual — CD25C (GC 47-532-31), CD25C (LPG) (GC 47-532-32)
manualmanualALPHA appliance manual — CD25X (GC 47-532-39), CD25X (LPG) (GC 47-532-40)
manualmanualALPHA appliance manual — InTEC 18S (GC 41-532-23), InTEC 18S (LPG) (GC 41-532-26)
manualmanualALPHA appliance manual — InTEC 24X (GC 47-532-45), InTEC 24X (LPG) (GC 47-532-52), InTEC 26C (GC 47-532-47), InTEC 26C (LPG) (GC 47-532-54)
manualNo technical questions yet for this part.
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