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Biasi Combustion Lip Gasket BI1503103

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
Manufacturer part no.
BI1503103
Showing prices

£13.39

£11.16 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 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

Not sure which part?

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