
Biasi
Biasi Combustion Lip Gasket BI1503103
Biasi BI1503103 combustion chamber lip gasket for Advance OV, S and C series boilers.
At a glance
- Part type: combustion chamber lip gasket
- Also known as 1651592
£13.39
£11.16 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 Biasi BI1503103 is a combustion chamber lip gasket manufactured by Biasi. It seals the joint at the combustion chamber lip, preventing products of combustion from escaping past the chamber edge into the appliance casing. It is used across the Biasi Advance range of open vent, system and combi boilers.
Signs this part needs replacing
- Visible cracking, splitting or crumbling of the gasket material
- The gasket has hardened or flattened and no longer seals the chamber lip
- Soot staining or discolouration around the combustion chamber lip
- Combustion readings drifting outside expected limits on service
- Signs of leakage past the chamber lip during a routine service inspection
Before you order
- Confirm your boiler model against the fitment list above
- Check whether your appliance is the natural gas or LPG variant
- Inspect the combustion chamber lip and sealing face for damage before fitting
- Refer to the manufacturer's instructions for the correct fitting procedure
Compliance
| Alternative numbers | 1651592 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BIASI ADVANCE 15 OV | 41-583-35 | 41-583-35 | — | — |
| BIASI ADVANCE 15 OV LPG | 41-583-35 | 41-583-35 | — | — |
| BIASI ADVANCE 18 OV | 41-583-36 | 41-583-36 | — | — |
| BIASI ADVANCE 18 OV LPG | 41-583-36 | 41-583-36 | — | — |
| BIASI ADVANCE 24 OV | 41-583-37 | 41-583-37 | — | — |
| BIASI ADVANCE 24 OV LPG | 41-583-37 | 41-583-37 | — | — |
| BIASI ADVANCE 25C | 47-583-43 | 47-583-43 | — | — |
| BIASI ADVANCE 25C LPG | 47-583-43 | 47-583-43 | — | — |
| BIASI ADVANCE 25S | 41-583-33 | 41-583-33 | — | — |
| BIASI ADVANCE 25S LPG | 41-583-33 | 41-583-33 | — | — |
Showing 10 of 16 compatible appliances.
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.
BIASI appliance manual — ADVANCE 15 OV (GC 41-583-35), ADVANCE 15 OV LPG (GC 41-583-35), ADVANCE 18 OV (GC 41-583-36), ADVANCE 18 OV LPG (GC 41-583-36), ADVANCE 24 OV (GC 41-583-37), ADVANCE 24 OV LPG (GC 41-583-37)
manualmanualBIASI appliance manual — ADVANCE 25C (GC 47-583-43), ADVANCE 25C LPG (GC 47-583-43), ADVANCE 30C (GC 47-583-44), ADVANCE 30C LPG (GC 47-583-44), ADVANCE 35C (GC 47-583-45), ADVANCE 35C LPG (GC 47-583-45)
manualmanualBIASI appliance manual — ADVANCE 25S (GC 41-583-33), ADVANCE 25S LPG (GC 41-583-33), ADVANCE 30S (GC 41-583-34), ADVANCE 30S LPG (GC 41-583-34)
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