The Vaillant Heat Exchanger 0020210464 is a genuine Vaillant spare part with a Vaillant manufacturer's guarantee.The Heat Exchanger is a vital component that facilitates the transfer of heat from the burner to the water within a heating system. These parts are categorised into two separate types, the Primary Heat Exchanger and the Secondary Heat Exchanger. The Primary is found within almost all boiler systems whereas a Secondary is only found within Combination systems to allow the heat to be transferred between the two closed systems.

• Suitable for Vaillant Ecotec Plus VU and Ecotec Pro VUW appliances from 2015 onwards