Disclosed is a washing machine with an improved stirring device. The washing machine includes a tub, a rotating tub rotatably provided in the tub, a stirring device including a first stirring portion rotatably provided below the rotating tub, and a second stirring portion coupled to the first stirring portion. The second stirring portion includes a cylindrical wash rod body and a groove that is recessed from an outer surface of the wash rod body and extends in a longitudinal direction to accommodate a parting line formed by a manufacturing process.

Embodiments relate to an insulation filling device for a fuel reformer, comprising: a feeder for supplying a powder insulation material; a stirrer for mixing the powder insulation material with a liquid binder for the agglomeration of the particles of the powder insulation material to form an insulation paste; and a thermal molding device for compressing said insulation paste to form a plurality of insulation molds having a predetermined shape and filling the insulation space of the fuel reformer with said insulation molds.