What’s inside a GLOW-WORM CXI COMBI Review and full strip down of the glow worm cxi combi boiler.

Derek in this episode of inside the boiler casing takes us through the workings of the glow worm cxi condensing combination boiler giving us tips and information on how the boiler works. Made for trainee gas engineers, you must be gas safe registered to work on gas. #gastraining #centralheating #best