Detroit Jewel propane orifice size

Jodii Posted By Jodii, Apr 14, 2017 at 7:57 PM

  1. Jodii

    New Member 2.

    Apr 13, 2017
    Monroe, WA
    I have a 1920's Detroit Jewel that I refurbed a bit. When I bought it, the owner said it worked on propane.... but the flame coming from the burner is white, not blue. This leads me to believe that the size of the orifice may not be correct for propane. Anyone know what size it should be? I don't want to blow up my cabin.
  2. coaly

    Fisher Moderator 2.
    Staff Member

    Dec 22, 2007
    NE PA
    That would be yellow flame if the orifice is too large or the air is not opened enough. Either of those conditions will make it burn yellow which is too rich of fuel / air ratio.
    One burner or all of them?
    Is there a tag giving BTU of each burner? If not, do you have small drill bits to figure out the size of existing orifices?
    Here is a BTU chart for orifice sizing. If they are not adjustable orifices, peening them shut and re-drilling to proper size is the normal procedure.
    Far right is the LP column at the normal 10 -11 " W.C. pressure.

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