Alpha primary is present in almost all boilers and it allows the transfer of heat from the burner to the water within the system. The secondary heat exchanger is exclusive to combination boilers and allows the heat to be transferred between one closed system and another.

Brand Name	Alpha
Colour	string
Material	string
Manufacturer Model No	1.021521
Wear Type	string
Type	Heat Exchanger
Certifications Met	string
Country of Origin	string
Protects From	string
Waterproof	string
Number of Pockets	string
Waist Size	ad69ci19gz
ERP Rating	Not Applicable
Compatible With	Alpha CD 13 R and Alpha CD 18 R
Supplier Part Number	1.021521