On a La Cornue cooker the cooktop is the hob — the cooking surface built into the range rather than a standalone unit — so the “cooktop” pages describe the configurable top of a Château or CornuFé. It can be specified with brass “flammes” gas burners (front burners around 17,000 BTU on natural gas, rear near 7,500 BTU), induction zones (ceramic glass, roughly 2,100W per zone with a 3,700W boost), or a combination of the two, depending on the model and the rangetop configuration you chose when the cooker was built.
Induction and gas zones
Induction zones include a pan detector, an overheat cut-out, and the residual-heat “H” indicator, and they accept the same modular logic as the rest of the rangetop. The CornuFé 90 “Albertine” and CornuFé 110 offer five brass gas burners or a five-zone induction top, while the Château line mixes burners and zones to order under its configuration codes (B1–B3, C1–C5, E0–E5, K1–K6 and the like). The French Top (plaque coup de feu) can also occupy part of the hob, turning a single burner into a gradient of simmer-to-sear heat zones, and a lava-rock grill or Teppanyaki plate can sit alongside it on the same surface.
Service for your cooktop
Because the hob is built into a made-to-order cooker, no two cooktops are identical, and the brass burners, grates, and ceramic-glass induction surface are matched to the original specification at service time. For an induction “U,” an E2 cut-out, or a gas burner that will not light, see our cooktop diagnostics first. Our technicians repair gas and induction hobs with genuine coils, sensors, ignition modules, and grates under the 5-year warranty, coordinating parts through the National Service Center where needed — book a cooktop repair (from $X). Compare hob options across the model lineup, and confirm specifications on the official La Cornue site.