An induction heatable body that quickly heats to a desired temperature, retains heat long enough to be used in almost any application, and develops no hot spots even when heated by a heating source having an uneven magnetic field distribution. The nozzle housing includes a nozzle shank, an outer peripheral surface and at least one injection hole at a tip of the nozzle shank. If one or more of the replicas are not reachable then the update operation may update a subset but not all of the replicas.