Biasi Condensing Heat Exchanger BI1282101

The BI1282101 is a condensing heat exchanger manufactured by Biasi for use in its gas boilers. It transfers heat from the combustion gases to the heating and hot water circuit, and in a condensing appliance it also recovers latent heat as the flue gases cool. It is a serviceable boiler component rather than a consumable.

• Water leaking from the heat exchanger body or its connections
• Visible corrosion, pitting or scale build-up on the exchanger
• Reduced heating or hot water output despite the burner running correctly
• Kettling, banging or rumbling noises from the appliance during operation
• Repeated overheat or lockout faults traced to poor heat transfer

• Confirm the boiler model and GC number against the fitment list above
• Check the appliance's own parts list to verify the part number for your build
• Inspect the seals, gaskets and pipe connections that will be disturbed during fitting
• Confirm the existing exchanger is the fault before ordering, as access and labour are significant