Conveyor ware washer, in particular industrial conveyor ware washer

Conveyor ware washer having a conveying device for conveying wash ware in a conveying direction through treatment zones of the conveyor ware washer, wherein the conveyor ware washer has at least two wash zones are arranged one after the other when viewed in the conveying direction and in each wash zone wash liquid from a wash tank associated with the wash zone is sprayed onto the wash ware, wherein the conveyor ware washer has at least one final rinse zone which, when viewed in the conveying direction, is arranged downstream of the at least two wash zones, in which final rinse zone fresh water is sprayed onto the wash ware, and wherein the conveyor ware washer additionally has an exhaust air system for removing exhaust air from the conveyor ware washer, characterized in that

• the one of the at least two wash zones which, when viewed in the conveying direction, is arranged closer to the at least one final rinse zone, has associated therewith a heating device that is arranged for heating the wash liquid, which is to be sprayed in the wash zone, to a previously established or establishable first minimum process temperature, and
• in that, in addition, there is provided a heat pump system for transmitting at least some thermal energy of the exhaust air, which has been removed or is to be removed from the conveyor ware washer, as useful heat to the wash liquid, which is to be sprayed in the wash zone of the at least two wash zones which, when viewed in the conveying direction, is arranged further away from the at least one final rinse zone.