I am using a little 10 gallon steel drum as my side draw forge chimney. I
rescued the drum and the grain bin steel siding from a near-by dump.
The forge I have been using in the local museum is side-draft as are most of the smith's in the area. I like the
side draft style as it leaves the fire unobstructed and actually pulls the
smoke in much better than most overhead hoods.
I went cheap inspired by shady grove and really like how the
round forge and round hood look together.
I acquired this old forge through the local guild. It pays to remind people
that you are looking. This is built inside an old steel tractor wheel. It is
about 36 inches inside diameter. The blower required some oil, and a handle
nwo it works great. Now I just need to build a side draft hood for it.