Check the appliance before the connection
A new appliance needs to suit the gas supply and its intended position. Confirm the make, model, fuel type and installation instructions before arranging work. Natural gas and LPG versions are not interchangeable merely because the cooker dimensions match. The engineer’s Gas Safe categories must also cover the appliance and fuel involved.
Kitchen clearances are part of the installation, not just an aesthetic choice. Space around burners, nearby cupboards and the cooker hood must meet the appliance instructions. A hob that fits the worktop opening can still be unsuitable if its required clearances cannot be achieved. Explain any recent kitchen alterations when discussing the connection.
Bayonet hoses and fixed gas pipework
A freestanding cooker may use an approved flexible hose and bayonet connection where the manufacturer permits it. The hose position, condition and routing need checking so it is not strained, trapped or exposed to excessive heat. The presence of an existing bayonet point does not mean a new cooker can be connected without assessing the installation.
A built-in gas hob commonly uses a fixed, hard-piped gas connection instead. This should not be confused with electrical hard-wiring: gas pipework and the electrical connection have separate requirements. The correct arrangement depends on the appliance instructions and the existing installation, so avoid buying a connection kit on the assumption that one type fits all cookers.
Ventilation and room conditions
Gas cooking appliances require suitable room conditions and ventilation. The engineer considers the appliance rating, room and manufacturer’s instructions, including any permanent ventilation requirement. A kitchen extractor fan is not an automatic substitute for the ventilation a gas appliance needs, and blocking an air vent because the room feels draughty can create a safety problem.
Let us know if the cooker is being moved, the kitchen layout has changed or the room has been opened into another space. These changes may affect the assessment even if the gas point remains in the same place. Gas hob installation is therefore more than tightening a fitting at the back of a cupboard.
Checks when the appliance is connected
The connection must be checked for soundness, and the appliance’s operation assessed in accordance with the installation procedure. Relevant checks include burner operation, safety features and the condition of the supply arrangement. The engineer should explain any defect that prevents safe use rather than leave the appliance operating with an unresolved problem.
Ignition supplies, dual-fuel cookers and ovens may also need a suitable electrical connection. A plug-in ignition lead and a hard-wired electric oven are different loads and different jobs. Tell us precisely what is being fitted so any electrical work can be discussed separately; electrical work is carried out by an NICEIC registered electrician.
Planning your kitchen job
For washing machine or dishwasher plumbing-in, use the separate appliance page. It deals with water connections and drainage, not gas cooking appliances. If you are a landlord, the gas safety certificates page explains the separate record and ongoing responsibilities after installation.
Send the model details, postcode and photographs of the accessible appliance position without disconnecting anything. Our heating hub covers small domestic heating and gas-related enquiries. Ask about a suitable visit or call 07735 852901. Never attempt to cap, move or alter gas pipework yourself, and do not use an appliance if you suspect a gas leak.