The Worcester 87161054820 heat exchanger (gas-to-water bi-thermal) is a genuine OEM replacement component engineered to transfer thermal energy efficiently from the boiler’s gas combustion process into both the central heating and domestic hot water circuits. As a bi-thermal design, this heat exchanger is configured to serve dual functions—providing effective heat exchange for space heating and for hot water generation—within compatible Worcester Bosch boiler models. Manufactured to original equipment standards, it delivers dependable performance, supports efficient heat transfer, and helps maintain consistent temperature control throughout everyday operation.

This gas-to-water bi-thermal heat exchanger is compatible with selected Worcester Bosch boilers that specify part number 87161054820 in their technical documentation. Because heat exchanger requirements can vary by boiler series, model variant, output rating and production year, it’s recommended to confirm compatibility using your boiler’s exact model number and GC number before ordering to ensure correct application and optimal performance.

Key features of the Worcester 87161054820 heat exchanger gas-to-water bi-thermal include genuine Worcester Bosch construction for assured quality and fit, bi-thermal design tailored to deliver efficient heat transfer for both central heating and domestic hot water duties, robust materials and engineering that resist thermal stress and corrosion, precise integration into the boiler’s combustion and hydronic circuits, and dependable long-term operation when installed by a qualified Gas Safe heating engineer.