The Sime part is located within the heat exchanger section. There are two kinds of heat exchangers that can be installed, the primary heat exchanger and the secondary heat exchanger. The primary is present in almost all boilers and it allows the heat to be transferred from the burner to the water within the system. The secondary heat exchanger only appears on combination boilers and allows the heat to be transferred between one closed system and another.
Fits multiple appliances
Technical specification
ERP RatingNot ApplicableSupplier Part Number6278851Brand NameSime