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
Manufacturer Model No	87161157410
Type	Heat Exchanger
Certifications Met	Not Applicable
Waist Size	aa14cf38gw
ERP Rating	Not Applicable
Compatible With	18Ri LPG
Supplier Part Number	87161157410