A commercial oven, such as a combination oven providing steam and convection heating, may provide an equipment cabinet holding electronic equipment and having an external wall abutting other heating apparatus. The external wall includes an interior plenum through which air is circulated to provide compact virtual insulation from external heat sources.

A commercial oven, such as a combination oven providing steam and convection heating, may provide an equipment cabinet holding electronic equipment and having an external wall abutting other heating apparatus. The external wall includes an interior plenum through which air is circulated to provide compact virtual insulation from external heat sources.

A process and apparatus for heating, cooling or heating and cooling multiple chambers of a food preparation device utilizing heated and/or cooled nebulized water particles and heated and/or cooled compressed air. The steps of heating include heating water contained in reservoir located outside of the cooking chambers, heating compressed air, conveying the heated water and the heated compressed air to at least one nebulizer, nebulizing the heated water into heated water particles and introducing the heated water particles into the cooking chamber via the heated compressed air. The steps of cooling include cooling water contained in an additional reservoir located outside of the cooking chambers, cooling compressed air, conveying the cooled water and the cooled compressed air to at least one nebulizer, nebulizing the cooled water into cooled water particles and introducing the cooled water particles into the cooking chamber via the cooled compressed air.

A process and apparatus for heating, cooling or heating and cooling multiple chambers of a food preparation device utilizing heated and/or cooled nebulized water particles and heated and/or cooled compressed air. The steps of heating include heating water contained in reservoir located outside of the cooking chambers, heating compressed air, conveying the heated water and the heated compressed air to at least one nebulizer, nebulizing the heated water into heated water particles and introducing the heated water particles into the cooking chamber via the heated compressed air. The steps of cooling include cooling water contained in an additional reservoir located outside of the cooking chambers, cooling compressed air, conveying the cooled water and the cooled compressed air to at least one nebulizer, nebulizing the cooled water into cooled water particles and introducing the cooled water particles into the cooking chamber via the cooled compressed air.

A steam cooker includes a main body which includes an upper wall, a lower wall, side walls, and a rear wall, a cavity formed by the upper wall, the lower wall, side walls and the rear wall, a steam generator to generate steam, and a supply pipe to connect the steam generator and the cavity to supply the generated steam into the cavity. The supply pipe includes a first supply pipe which includes a first end connected to the steam generator and a second end, and a second supply pipe includes a first end connected to the upper wall of the cavity and a second end to be connected to the second end of the first supply pipe, and includes a condensation water guide portion formed to be inclined to prevent condensation water generated therein from being introduced into the cavity when the generated steam is supplied into the cavity.

A steam cooker includes a main body which includes an upper wall, a lower wall, side walls, and a rear wall, a cavity formed by the upper wall, the lower wall, side walls and the rear wall, a steam generator to generate steam, and a supply pipe to connect the steam generator and the cavity to supply the generated steam into the cavity. The supply pipe includes a first supply pipe which includes a first end connected to the steam generator and a second end, and a second supply pipe includes a first end connected to the upper wall of the cavity and a second end to be connected to the second end of the first supply pipe, and includes a condensation water guide portion formed to be inclined to prevent condensation water generated therein from being introduced into the cavity when the generated steam is supplied into the cavity.

A process and apparatus for heating an oven using nebulized water particles and compressed air including the steps of heating water contained in reservoir that is located outside of a cooking chamber by transferring water within the reservoir through a water heater to reach a desired end point temperature that is less than boiling, heating compressed air by sending compressed air through an air heater that is submerged within the water of the reservoir, conveying the heated water and the heated compressed air to a nebulizer, nebulizing the heated water into heated water particles and introducing the heated water particles into the cooking chamber via the heated compressed air.

A process and apparatus for heating an oven using nebulized water particles and compressed air including the steps of heating water contained in reservoir that is located outside of a cooking chamber by transferring water within the reservoir through a water heater to reach a desired end point temperature that is less than boiling, heating compressed air by sending compressed air through an air heater that is submerged within the water of the reservoir, conveying the heated water and the heated compressed air to a nebulizer, nebulizing the heated water into heated water particles and introducing the heated water particles into the cooking chamber via the heated compressed air.

A cooking oven has a cooking cavity and a steam generating system. The steam generation system includes a water reservoir received and support in a reservoir-receiving space of a reservoir rack inside the cooking cavity. Thermal energy is provided to the water reservoir by a heater inside the cooking cavity. The heater can include thermal block made of a thermally conductive material in thermal communication with a heating element. The heater can be positioned such that it intimately contacts the water reservoir to deliver thermal energy thereto to convert water contained therein to steam, which can be used to cook a food item inside the cooking cavity.

A cooking oven has a cooking cavity and a steam generating system. The steam generation system includes a water reservoir received and support in a reservoir-receiving space of a reservoir rack inside the cooking cavity. Thermal energy is provided to the water reservoir by a heater inside the cooking cavity. The heater can include thermal block made of a thermally conductive material in thermal communication with a heating element. The heater can be positioned such that it intimately contacts the water reservoir to deliver thermal energy thereto to convert water contained therein to steam, which can be used to cook a food item inside the cooking cavity.