[TheForge] Re: Gas forges (burner adjustments)

[theforge@mailman.qth.net]

>You have a huge forge, close enough to 4,700 cu/in as makes no =
difference.
>To reliably get welding heat in a naturally aspirated propane forge the =
rule
>of thumb is 1 ea. 3/4" burner per 300-350 cu/in. In your forge this =
would be
>13-16 ea. 3/4" burners. A 1" burner has twice the output of a 3/4" =
burner
>but you'd still need 7-8 of them.
 Another alternative would be to use a diesel burner. A friend has one
out of a central heating furnace, and it will melt the end of a 1"
steel bar in a few minutes, all at 80c per hour to run.
Geoff