I tested the one-way spinning blower in an iron smelt and it is more effective than the previous both way spinning blower. Using the same amount of ore and charcoal, the original blower yielded 30 g of iron where as the new blower yielded 51 g. The previous all time record was 41 g from several years ago but the new blower it beat that by 10 g on its first run. The energy saved by having the fan spin constantly in one direction no doubt contributes to the better performance of the blower. As with the old blower, the new one produces high carbon iron prills (cast iron blobs) in slag. The brittle slag crushes easily while the iron prills remain intact to be picked out by hand or gravity separated with panning. The iron prills were also quite large and more numerous than smelts done with the old blower.