There are two variants of heat exchanger, which are the primary heat exchanger and the secondary heat exchanger. The primary heat exchanger, installed within almost all boilers enables the heat transfer from the burner to the water within the system. The secondary heat exchanger, which are predominatly only present in combi boilers, enables the heat to be transferred from one closed system to another.

Brand Name	Worcester Bosch
Colour	N/A
Material	N/A
Manufacturer Model No	87161066860
Wear Type	N/A
Type	Heat Exchanger
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Part Number	87161066860
Plate	10
Compatible With	25 Si LPG, 25 Si, 24 i Junior, 18 i System, 18 i System LPG, 24 i System, 24 i System LPG, 24 i Junior HE and 24 i Junior HE LPG
ERP Rating	Not Applicable