What is a GC Number?
GC stands for gas council number. It’s a identfication system for gas appliances and some specific products. It’s a system that was created by British Gas in collaboration with boiler manufacturers and suppliers.
First two digits. 00-000-00
– First digit specifies the main type of appliances.
– Second digit specifies the type of appliance within the type
Next three digits. 00-000-00
– name of the manufacturer.
Last two digits 00-000-00
– model/sub range identifier
Below is a list of Appliance Types (as defined in the first 2 digits) – this list is not exhaustive
11 = Cooker Grill
31 = Gas Fire
35 = Flued Convector Unit
37 = Back Boiler Unit
41 = Central heating Boiler
42 = Warm Air Heater
44 = Back Boiler Fire
47 = Combination Boiler (Combi)
51 = Instantaneous Water Heater
52 = Multi-point Water Heater
53 = Circulator