Apparatus for cooking out of doors; Gas cooking apparatus incorporating cooking grills; Gas operated apparatus for cooking; Barbecue apparatus; Barbecue cooking apparatus; Barbeques; Cooker hoods; Exhaust hoods (cooker hoods); Cookers incorporating grills; Domestic grill apparatus; Domestic hot plates; Gas burner ranges; Gas burners; Gas cookers; Gas cooking appliances; Gas stoves utilising flames in rotating form; Grills for barbecuing; Hostess trolley (heated); Hot plates for cooking; Lava rocks for use in barbecue grills; Roasting spits; Rock and ceramic heat distributing materials for use in barbecue grills and cookers; Thermostatic valves (parts of heating installations); Ventilating hoods; Warming pans; Warming trays