
Alpha
Alpha G20 Gas Nozzle 1.011848
G20 gas nozzle (main burner injector, 5.0 mm) for Alpha CD18S, CD24C and CD24S boilers, part number 1.011848.
At a glance
- Also known as G20-GAS-NOZZLE-CD24SC, 1250034
£30.24
£25.20 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Alpha 1.011848 is a G20 gas nozzle, also listed as a main burner injector with a 5.0 mm size. It meters gas into the main burner of Alpha CD series boilers so the burner runs at the correct combustion mixture. It is used on the Alpha CD18S, CD24C and CD24S appliances.
Signs this part needs replacing
- Burner flame burns yellow or lifts instead of holding a steady blue flame
- Soot deposits forming around the burner or on the heat exchanger
- Boiler fails to ignite, or ignition is erratic and repeated lockouts occur
- Weak or uneven flame across the burner face
- Gas rate at the meter falls outside the values given in the boiler's technical data
Before you order
- Confirm the boiler model is CD18S, CD24C or CD24S
- Check the marking on the existing injector matches the 5.0 mm size
- Confirm the appliance is set up for G20 gas
- Compare the part number 1.011848 with the number on the component being replaced
Compliance
| Alternative numbers | G20-GAS-NOZZLE-CD24SC, 1011848, 1250034 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA CD18S | — | — | — | |
| ALPHA ALPHA CD24C | — | — | — | |
| ALPHA ALPHA CD24S | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.
