The Ideal 173785 Heat Exchanger & 4 O-Rings – C95FF is a genuine replacement kit designed to restore efficient heat transfer and reliable performance in compatible Ideal C95FF boiler models. The primary heat exchanger is engineered to move thermal energy from the combustion chamber into the central heating and hot water circuits, helping maintain consistent temperatures and energy-efficient operation. Supplied with four precision-sized O-rings, this kit ensures secure, leak-resistant sealing at all critical connections, preventing water loss and maintaining system integrity.

Manufactured to Ideal’s exact quality and performance standards, the heat exchanger and O-ring kit is intended to be installed by a qualified heating engineer during servicing, maintenance, or when replacing a worn or failed exchanger assembly. Compatibility for this kit is specific to Ideal C95FF boilers that utilise the 173785 heat exchanger specification.

Using a genuine Ideal heat exchanger with correctly matched O-rings supports effective heat transfer, improves boiler efficiency, prevents leaks at key junctions, and contributes to the long-term reliable operation of your central heating and domestic hot water system. Always verify your boiler’s model and part requirements before installation to ensure correct fit and performance.