The Biasi Burner Is the part in the boiler where the gas is ignited and burnt and provides the main source of heat for the hot water and the central heating.
Biasi BI1293500 LPG Conversion Kit

Part: BI1293500

Price: £19.87
Biasi BI1293501 LPG Conversion Kit

Part: BI1293501

Price: £20.47