[TheForge] Propane Forge - Bending the burner

Thu Sep 12 07:33:01 2002

       Larry,   I used the welded fittings on these burners.  They seem to
work well, I'm getting good reports from Doug Wilson and David Court who
both bought one of these forges.

Ralph


----- Original Message -----
From: "Larry Zoeller" <[email protected]>
To: <[email protected]>
Sent: Wednesday, September 11, 2002 6:10 PM
Subject: Re: [TheForge] Propane Forge - Bending the burner


> Ralph,
> Were you using threaded 45s or welded fittings?  I think if you used the
> welded 45s that it should work fine.  The threaded fitting would cause a
lot
> of disturbance in the flow.
> Larry Zoeller
> ----- Original Message -----
> From: "Ralph Sproul" <[email protected]>
> To: <[email protected]>
> Sent: Wednesday, September 11, 2002 6:21 AM
> Subject: Re: [TheForge] Propane Forge - Bending the burner
>
>
> >         Marc,  Using a friends hossfeld (come on over), or some old hour
> > glass rollers you scrounge off a machine can get a bend in pipe for you.
> > Supporting it thru the curve allows it to stop kinking which is what
will
> > happen if you just pull it across a corner.
> >         Your absolutetly correct on curves and fittings changing the
> > velocity of a burner.  The striaght burners I made for my new gas forge
> had
> > such a high velocity that the flame had not completely burned before
> hitting
> > the floor of the forge and created hot spots.   I also had a chimney
> effect
> > happening so I used two 45 degree elbows to make a trap out of them and
> this
> > mixed the gas better, slowed the velocity of the burner down so the
total
> > burn occured 1" off the floor resulting in no cold spots, and it was
much
> > quieter..............but the 3/4 pipe no longer had enough heat
> > output..........so I went to 1" burner tubes and it is just what was
> needed.
> >
> > Ralph
> >
> >
> >
> >
> > ----- Original Message -----
> > From: "Marc Godbout" <[email protected]>
> > To: "TheForge" <[email protected]>
> > Sent: Tuesday, September 10, 2002 7:42 PM
> > Subject: [TheForge] Propane Forge - Bending the burner
> >
> >
> > > I've seen several commercial propane forges that save space by shaping
> > > the burner tube in a U-turn. These burners are also venturi-type, no
> > > blower and it looks like they use regular pipe fittings to do this,
not
> > > some special cast burner tube.
> > >
> > > I was trying to do something similar with my side-arm, but just
bending
> > > at a right angle, using iron fittings. But this noticeably reduced the
> > > output. I also tried 2 45deg fittings and that was just as bad.
> > >
> > > When the 45's were on it seemed like the fittings were getting hotter
> > > than a normal burner pipe would. I'm thinking that the flame might
have
> > > been caught up in the fitting. Any ideas on how I could get a 90deg
bend
> > > with a home-brew?
> > >
> > > Thanks.
> > >
> > > --
> > > Marc Godbout
> > > http://www.ironringforge.com
> > >
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