Glow-worm has two different types of heat exchangers that can be present, the primary heat exchanger and the secondary heat exchanger. The primary is present in almost all boilers and it transfers the heat 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.

Brand Name	Glow-Worm
Colour	N/A
Material	N/A
Manufacturer Model No	2000801701
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
Waist Size	aa37cg57gw
Compatible With	Glow-worm HXI 24, Glow-worm HXI 30, Glow-worm SXI 30, Glow-worm HXI 38, Glow-worm CXI 38, Glow-worm ULTRACOM 12 HXI, Glow-worm ULTRACOM 15 HXI, Glow-worm ULTRACOM 18 HXI, Glow-worm ULTRACOM 18 SXI