Making a Forge Blower
Video on Making a Forge Blower from Clay & Sticks
from Primitive Technology
The young man who has created the Primitive Technology Channel on YouTube shows how to shape clay into a blower to be able to forge iron ore into a chunk of metal.
Watch how he shapes each piece he needs from clay and then puts them all together at the end to create a fire hot enough to melt metal. The key to this process is being able to give the fire extra air. More air and the fire will burn hotter.