What a CP12 actually covers
A gas safety record is an appliance-by-appliance check, not a single tick box. Every gas appliance the landlord owns in the property is inspected, along with the pipework feeding it and the flue taking combustion products away. If a property has a boiler, a gas hob and a gas fire, all three appear on the certificate.
- Gas tightness test on the installation pipework
- Operating pressure and burner performance at each appliance
- Flue flow and spillage testing
- Ventilation checked against the appliance requirements
- Visible condition of pipework and appliance safety devices

