[TheForge] Gas Forge "Chuffs"

[Steve Smith]

Check to see that the outlet of your burners is clear. Just a bit of 
insulation across the end can cause poor burning.

Steve Smith

Scott Lane wrote:
> Greetings,
>     I participated in a gas forge construction workshop this weekend, in 
> which we build 14 new double burner atmospheric gas forges.  They are 
> made out of 10" thin wall pipe, with two non-blown burners coming in 
> horizontally near the top of the forge.
>     Got mine home and fired it up.  Runs great at 20lbs gas, but when I 
> reduce the psi down to 5 or 7psi the combustion "chuffs" (surges) and 
> does not burn completely.  There is a massive amount of blue flame 
> coming out the front, no matter how far I open or close the air gates 
> (adjustable disks on the end of the burner pipes).
>     I have seen a number of these exact forges run well, so I don't 
> think it's the design.  However, with any mass construction effort there 
> is bound to be minor differences.  For instance, most of the forges 
> built had the burner pipes running slightly "down hill" into the forge, 
> where mine run slightly "up hill".
>     Any suggestions on the combustion problem?
> 
> Thanks,
> Scott
> 
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