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
11Â Â Â Â =Â Â Â Â Cooker Grill
31Â Â Â Â =Â Â Â Â Gas Fire
35Â Â Â Â =Â Â Â Â Flued Convector Unit
37Â Â Â Â =Â Â Â Â Back Boiler Unit
41Â Â Â Â =Â Â Â Â Central heating Boiler
42Â Â Â Â =Â Â Â Â Warm Air Heater
44Â Â Â Â =Â Â Â Â Back Boiler Fire
47Â Â Â Â =Â Â Â Â Combination Boiler (Combi)
51Â Â Â Â =Â Â Â Â Instantaneous Water Heater
52 Â Â = Â Â Multi-point Water Heater
53Â Â Â Â =Â Â Â Â Circulator