Abstract: A cooking hob comprising at least one gas burner 17, 18, 19 disposed beneath a glass top 25, said burner including a heat resistant rod 46 extending across at least part of the burner 17, 18, 19 and a thermocouple element 47 connected to the rod 46 for sensing the temperature of the glass 25 (FIG. 1).

Abstract: A gas hob has a glass ceramic top plate and gas fired heat radiating burner units below the top plate. Each burner unit has a lower plate which includes a number of concentric chambers. A ceramic burner plate is disposed over the lower plate. The burner plate is perforated to match the arrangement of concentric chambers to provide concentric gas burning rings. The supply of gas to the burner units is controllable by respective control valves enabling gas to be supplied only to the burner plate perforation at which supply of heat is required. A fan below the level of the burner units supplies air to a plenum chamber which communicates with ducts leading to the concentric chambers. The fan supplies combustion air at all times when a burner unit is in operation. Gas from the control valve mixes in the ducts with air from the plenum chamber before entering one of the concentric chambers and the gas burning ring.

Abstract: A radiant fuel support for an artificial fuel-effect gas fire in the form of a plaque of refractory material having an upper surface formed with a series of ridges with channels therebetween, the ridges being designed to support artificial fuel elements placed thereon and the channels being designed to receive gas flames impinging on the surface thereof; the support being mounted in an artificial fuel-effect gas fire having a series of flame producing means, with each such means being arranged so that a flame therefrom would impinge on the surface of one of the channels at a shallow, glancing angle thereto, the artifical fuel elements being arranged on the ridges to bridge the channels; by this means the channels and the undersurfaces of the fuel elements can be heated by the flames which would also appear as naked flames above the support and between the fuel elements.