The La Cornue vaulted oven, or “voûte,” is the brand’s defining feature: a sealed radiant dome that surrounds food with even, gentle heat and is prized for roasting, with no window on the Château so the cavity holds its heat. It is not a standalone wall oven — La Cornue does not make those — so these pages describe the oven as it lives inside the range cooker. The vaulted oven appears across the Château and Grand Palais families, with a single vaulted oven on the smaller Châteaus (60, 75, 90) and two vaulted ovens, one gas and one electric, on the 120, 150, 165, and Grand Palais 180.
Gas, electric, and multifunction vaults
Vaulted ovens come in gas and electric forms; electric and multifunction versions add convection, and the CornuFé cookers carry a seven-mode multifunction convection oven of their own, with the CornuFé 110 adding a second electric convection oven. The Grand Palais pairs a grand gas vault of roughly 3.1 cubic feet with an electric vault near 2.7 cubic feet, while the Château 165 combines a grand gas oven with an electric vault and two drawers. Finishes and brass, nickel, chrome, or copper trim follow the same options as the rest of the line, since the oven is part of a single hand-built appliance.
Service for your vaulted oven
If the oven will not ignite, drifts off temperature, or shows an Er code, see our oven diagnostics. Our technicians repair gas, electric, and multifunction vaulted ovens with genuine parts — igniters, safety valves, elements, sensors, and thermostats — under the 5-year warranty, coordinating components through the National Service Center where needed. Because the vault is a sealed brass-and-enamel assembly built into the cooker, we work carefully around the finish so the repair leaves no trace. Schedule a vaulted oven repair (from $X), see which models carry one or two vaults in the model lineup, and confirm specifications on the official La Cornue site.