[TheForge] burner question

[theforge@mailman.qth.net]

In the most recent anvils ring there is an advertisement from 
Blacksmiths Journal. The forge picture shows the burner and the burner 
has no reducer fitting on the end. I thought that an "atmospheric" gas 
forge had to have this transition from 1-1/2"-3/4" to produce the 
venturi effect.

In Hoffmans burner the gas enters straight in the end of the burner. 
Air is adjustable. If you're not an abana member this may be shown at 
the Blacksmith Journal website.

I guess the question (is a reducer needed?) is answered by the fact 
that this burner works. Why did everyone use a reducer? (me too)

Also if Jay Hayes is still on this list would you please send me a list 
of your gas forge materials?

Thanks.

Bob