Vokera has two different types of heat exchangers that can be installed. They are known as the primary and secondary heat exchangers. The primary is present in almost all boilers and uses heat from the burner to raise the temperature of water within the system. The secondary heat exchanger is exclusive to combination boilers and allows the heat to be transferred between one closed system and another.
Supplied with 2 fibre washers
Technical specification
TypeHeat Exchanger SealManufacturer Model No5351Brand NameVokera