Cooking Appliance Installation & Repair Specialists.

This is split into 2 sections, Electric & Gas

Connection : Gas

IN GENERAL

There are 2 methods used to connect gas appliances to the household supply.
The first uses a rigid connection, typically used to connect gas hobs.
The second uses a flexible hose, which is used for all other appliances except the hob.
In addition every gas appliance installation requires a method to isolate the appliance from the main household gas supply

HOBS

Gas hobs are typically connected to the household supply using 15mm rigid copper pipe.
They must have a means of isolation so you can turn the gas supply off to the hob. This is achieved by adding a shut off tap to the installation pipework as close to the hob as it possible.
There must also be a means of disconnecting the pipework from the hob. This is normally achieved by using a compression joint.

TYPICAL INSTALLATION FAULTS


No isolation tap.
Insecure pipework

FREE STANDING COOKERS - RANGES - BUILT IN OVENS

These appliances are normally connected to the household supply using a specifically designed flexible hose that connects to a self sealing bayonet fitting.
The bayonet fitting also serves as the isolation device.
The siting of the bayonet fitting and the way in which the flexible hose hangs are covered in detail by gas regulations and must be adhered to.
Briefly the flexible hose must hang in a "U" shape, (as illustrated in the image below), behind the appliance without touching the floor.
It must not foul on any edges or potentially be trapped or be strained when removing the appliance.
This is covered in more detail further down the page Connection Gas

TYPICAL INSTALLATION FAULTS

Bayonet location incorrect.
(Too low or in an adjacent cupboard)
Bayonet facing upwards
Bayonet & or pipwork insecure
Flexible hose location and routing incorrect

CORRECT LOCATION OF BAYONET

Connection Gas

IMPORTANT

Manufacturers instructions take precedence over the following standards

CONNECTIONS
MUST

FLEXIBLE HOSE

  • Hang freely vertically creating a "U" shape
  • Allow the appliance to be removed while connected without being strained or stressed

BAYONET

  • Be located behind the appliance
  • Be secured to the wall (Fabrication of the building)
  • Be pointing down UNLESS the flexible hose has a right angled connector, then it can point sideways

RIGID

  • Have a gas rated isolation tap
  • Have a means of disconnection
    (e.g. compression joint)

DIMENSIONS

BAYONET LOCATION

  • A : 750mm
    Above finished floor level
  • B : 50-75mm
    Above finished floor level
  • C :
    See manufacturers instructions


PREVIOUS STANDARD

BAYONET LOCATION

Still in use by many manufacturers

  • D :
    • 500-600mm
      Above finished floor level
    • 50-100mm
      Inside the edge from the right side of the appliance

CONNECTIONS
MUST NOT

FLEXIBLE HOSE

  • Foul or be trapped on cupboard edges
  • Touch hot surfaces


BAYONET

  • Point Up
  • Be fitted into adjacent cupboards
  • Be secured to the cupboards


RIGID

  • Pipework Not foul on
    • Built in oven installed below it
    • Cupboard drawers
Connection : Electric

IN GENERAL

There are 2 types of connection
One that plugs into a typical plug socket (Or a fused spur equivalent)
One that requires a 'Cooker point'
The simplest way to explain the 2 methods, is that the more elements you can have on at any one time, the higher the fuse rating and thickness of cable you will require.
For example, a double electric oven (2 doors) can have the oven and the grill on at the same time.
This would take out a 13 amp fuse, which is the highest fuse rating you can have in a plug socket.
So we need a method that allows a higher fuse rating connection. This is accomplished by using a cooker point which is normally protected by a 32 amp fuse

PLUG SOCKET CONNECTION


Basic guideline. If the appliance comes with a cable connected to it, then the maximum rating will be 13 amps
This means it uses a normal plug socket or what is called a fused spur, which can take up to a 13 amp fuse.
In most (but not all cases) they will already have a plug attached to the cable

Appliances that use this type of connection are:
Built in Gas Hobs
Built in Gas Ovens
Built in Single Electric Ovens (Having 1 door)
Gas Ranges.

TYPICAL INSTALLATION FAULTS


Cooker wired up to cooker point instead of a plug socket/fused spur

COOKER POINT CONNECTION


If the appliance does not come with a cable attached to it then it will most likely require connection to a cooker point.
This will require 4-6mm cooker flex that does not come with the appliance.

Appliances that will use this type of connection are:
Built in electric hobs
Built in Electric Double ovens, (Having 2 doors)
Electric free standing cookers & Ranges.
Dual Fuel free standing cookers & Ranges.

TYPICAL INSTALLATION FAULTS


No cooker point ( Cable runs direct to the cooker from the On/Off switch )
Built in electric Hob & Built in electric oven wired to same Cooker point