Heating apparatus.

摘要

A heating apparatus comprises a furnace body (1), a work item holding device, at least one compressed gas supplying pipe (5) and a spot heating device. Since the spot heating device has a nozzle which spouts a compressed air with a sufficient energy, a heated gas can be led to the particular portion of the work item to be heated concentrically with high efficiency. Also, since circulation system of the heated gas is established, there is no energy loss.