The heat exchanger transfers heat from a boiler's burner to water. A primary heat exchanger is found in all boilers, using heat from a burner to raise the temperature of the water in the system while a secondary heat exchanger is present only in combis and allows the heat to be transferred between closed systems.
Supplied with four gaskets and two fixing bolts
Technical specification
Waist Sizeaa17ce57gwSupplier Part Number7875503Brand NameViessmann