[TheForge] burner adjustment

[Gladish Family]

Wow, Frosty, what  a great batch of info!
I go back and forth on whether I really want to run a gas forge at all,
since so far my efforts are so unsatisfactory. I want the convenience and
steady heat of a gas forge and the ability to heat longer sections, but I
want it to heat up quick like coal and give me that intense heat where and
when I want it. After watching Bill Fiorini weld Damascus billets
effortlessly in a homemade blown forge I know it's possible to make them do
whatever you need them to do, but I'm not there yet...

> As I mentioned earlier I prefer a smaller jet diameter running at higher
> pressure to aid air/fuel mixing. This puts my jets closer to the "factory"
> recommended placement and increases the need to choke for a neutral burn.

I'm running a single .030 jet (nominal, not actual- mig tip) and getting a
7" diam. x 18" cavity to a medium orange- nowhere near hot enough for my
taste.
Do you think it's possible to drive another burner off this "carburetor",
and, if so, should I use some kind of "Y" branch, or will a Tee followed by
elbows still draw?

As is, with the nozzle about 1 1/2" back from the 3/4" bore, and a 3" long
flare I can run it without choke at 8 to 30 psi without flutter or chirping
(back pressure). If I move the nozzle in close to the bore then it needs
choke.
Actually, I could give it more air- it's a sidearm design with a tee instead
of an elbow, but one side is closed off.
Now, that's in the forge. Out of the forge, just clamped in the vise, it
needs a surprising amount of choke- like about three quarters of a square
inch of open gate...depending on where that nozzle is set. More choke the
deeper I set it.
Sure wish I had somebody who had done this before to look at this rig and
tell me why it won't put out more heat- blown forges seem to be able to heat
twice the area per burner...at least twice the fuel, too!

> I'm still ankle deep in mud in my present tarp tent "smithy". <sigh>

No mud here, now, (got the driveway done- yay!) but only one wall on the
smithy...

Thanks,
Andy G.