Worcester Bosch, there are two kinds of heat exchanger that can be present, the primary heat exchanger and the secondary heat exchanger. The primary is present in almost all boilers and it transfers the heat from the burner to the water within the system.
Fits multiple appliances
Technical specification
TypeHeat ExchangerCompatible With533 COMPACT ErP, 535 COMPACT ErP, GREENSTAR 30 SI COMPACT LPG and GREENSTAR 30 SI COMPACT NGManufacturer Model No87186444720Brand NameWorcester Bosch