I just picked up a large forge blower to use with my coal forge. Maybe I should put a T in so that I can direct some air past the propane forge (not yet built) as needed. Others with a powered forge blower might try the same thing if the forges are usually stationary.
I worked in a shop with a couple of propane forges for a while. The large one was a blown forge used all the time and was easy to light. The small one, commercial but I don't recall the brand, was always dangerous to light. You almost always lost some percentage of arm hairs, unless they hadn't grown back yet. The forge worked fine in use. Some designs are probably safer than others. If you're building your own, I don't know how to spot the differences other than to light it up.
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