The Vaillant 180912 Heat Exchanger is a genuine replacement component engineered to transfer heat from the combustion process into your boiler’s central heating and hot water systems. This exchanger captures thermal energy from the burner and passes it efficiently into the boiler’s water circuit, helping deliver stable temperatures, reliable heat output and effective hot-water performance. A failing or blocked heat exchanger can lead to reduced efficiency, fluctuating temperatures or boiler lockouts, so installing the correct OEM part helps restore dependable operation.

This heat exchanger is compatible with specific Vaillant boilers that reference part number 180912 in their technical documentation. To ensure correct fitment and proper performance, always verify the part number on your existing heat exchanger or consult your boiler’s service information before installation, as heat exchanger designs vary between models and output capacities.

Supplied ready for direct replacement, the 180912 Heat Exchanger integrates with the boiler’s existing pipework and mounting points without modification when installed by a qualified engineer. Choosing this genuine Vaillant component helps restore effective heat transfer, supports consistent system temperatures and contributes to reliable heating and hot-water performance in compatible boilers.