Tatra, just use the one I posted. No errors at all.

Merged post

Bah, I double oopsed, sorry last time all. Double and triple checked everything. Here is a 10x working config lol :) I didn't have the output changed above, I do in this.

{
  "Permission": "quicksmelt.use",
  "Use Permission": false,
  "Speed Multipliers": {
    "furnace": 10.0,
    "small.oil.refinery": 10.0,
    "furnace.large": 10.0,
    "campfire": 1.0,
    "BBQ": 1.0
  },
  "Fuel Usage Speed Multipliers": {
    "furnace": 10.0
  },
  "Fuel Usage Multipliers": {
    "furnace": 10,
    "small.oil.refinery": 10,
    "furnace.large": 10,
    "campfire": 1,
    "BBQ": 1
  },
  "Output Multipliers": {
    "furnace": {
      "charcoal": 10.0,
      "metal.fragments": 10.0,
      "sulfur": 10.0,
      "metal.refined": 10.0
    },
    "small.oil.refinery": {
      "lowgradefuel": 10.0
    },
    "furnace.large": {
      "charcoal": 10.0,
      "metal.fragments": 10.0,
      "sulfur": 10.0,
      "metal.refined": 10.0
    }
  },
  "Whitelist": {
    "furnace": [
      "metal.ore",
      "sulfur.ore",
      "hq.metal.ore"
    ],
    "furnace.large": [
      "metal.ore",
      "sulfur.ore",
      "hq.metal.ore"
    ],
    "small.oil.refinery": [
      "lowgradefuel"
    ],
    "campfire": [
      "deermeat.raw",
      "chicken.raw",
      "humanmeat.raw",
      "fish.raw",
      "bearmeat",
      "wolfmeat.raw",
      "meat.pork.raw"
    ],
    "BBQ": [
      "deermeat.raw",
      "chicken.raw",
      "humanmeat.raw",
      "fish.raw",
      "bearmeat",
      "wolfmeat.raw",
      "meat.pork.raw"
    ]
  },
  "Blacklist": {
    "furnace": [
      "deermeat.cooked",
      "chicken.cooked",
      "humanmeat.cooked",
      "fish.cooked",
      "bearmeat.cooked",
      "wolfmeat.cooked",
      "meat.pork.cooked"
    ],
    "furnace.large": [
      "deermeat.cooked",
      "chicken.cooked",
      "humanmeat.cooked",
      "fish.cooked",
      "bearmeat.cooked",
      "wolfmeat.cooked",
      "meat.pork.cooked"
    ],
    "campfire": [
      "deermeat.cooked",
      "chicken.cooked",
      "humanmeat.cooked",
      "fish.cooked",
      "bearmeat.cooked",
      "wolfmeat.cooked",
      "meat.pork.cooked"
    ],
    "BBQ": [
      "deermeat.cooked",
      "chicken.cooked",
      "humanmeat.cooked",
      "fish.cooked",
      "bearmeat.cooked",
      "wolfmeat.cooked",
      "meat.pork.cooked"
    ]
  },
  "Smelting Frequencies (Smelt items every N smelting ticks)": {
    "global": 1,
    "furnace.shortname": 1
  },
  "Debug": false
}​

if you want a simple 5X speed that allows cooking food and cans in ovens without burning things, this is my config.  I noticed above missed some ovens, and input types.  This is slightly more complete.  I hope it helps get folks started.

{
  "Permission": "quicksmelt.use",
  "Use Permission": false,
  "Speed Multipliers": {
    "bbq": 5.0,
    "cursedcauldron": 5.0,
    "campfire": 5.0,
    "fireplace.stone": 5.0,
    "furnace": 5.0,
    "furnace.large": 5.0,
    "small.oil.refinery": 5.0
  },
  "Fuel Usage Speed Multipliers": {
    "bbq": 1.0,
    "cursedcauldron": 1.0,
    "campfire": 1.0,
    "fireplace.stone": 1.0,
    "furnace": 1.0,
    "furnace.large": 1.0,
    "small.oil.refinery": 1.0
  },
  "Fuel Usage Multipliers": {
    "bbq": 1,
    "campfire": 1,
    "cursedcauldron": 1,
    "fireplace.stone": 1,
    "furnace": 1,
    "furnace.large": 1,
    "small.oil.refinery": 1
  },
  "Output Multipliers": {
    "furnace": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "sulfur": 1.0,
      "metal.refined": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "small.oil.refinery": {
      "charcoal": 1.0,
      "lowgradefuel": 1.0,
      "metal.refined": 1.0
    },
    "furnace.large": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "sulfur": 1.0,
      "metal.refined": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "campfire": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "cursedcauldron": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "fireplace.stone": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "bbq": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    }
  },
  "Whitelist": {
    "furnace": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "hq.metal.ore",
      "humanmeat.raw",
      "meat.boar",
      "metal.ore",
      "sulfur.ore",
      "wolfmeat.raw",
      "wood"
    ],
    "furnace.large": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "hq.metal.ore",
      "humanmeat.raw",
      "meat.boar",
      "metal.ore",
      "sulfur.ore",
      "wolfmeat.raw",
      "wood"
    ],
    "small.oil.refinery": [
      "lowgradefuel",
      "wood"
    ],
    "campfire": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "cursedcauldron": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "bbq": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "fireplace.stone": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ]
  },
  "Blacklist": {
    "furnace": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "furnace.large": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "campfire": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "cursedcauldron": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "fireplace.stone": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "bbq": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ]
  },
  "Smelting Frequencies (Smelt items every N smelting ticks)": {
    "global": 1,
    "bbq": 1,
    "cursedcauldron": 1,
    "campfire": 1,
    "fireplace.stone": 1,
    "furnace": 1,
    "furnace.large": 1,
    "small.oil.refinery": 1
  },
  "Debug": false
}​

Thank you very much for your configs!

@mspeedie Thank you very much for this complete config!!Greets

I'm trying to slow down fuel speed usage and no success to work, then I edited "Fuel Usage Speed Multipliers"

  },
  "Fuel Usage Speed Multipliers": {
    "furnace": 0.5,
    "small.oil.refinery": 0.5,
    "furnace.large": 0.5,
    "campfire": 0.5,
    "BBQ": 0.5
  },

Merged post

I make one 100% working in 5x. Credits to Logan5, made some changes to slower fuel consumption and BBQ error code
Change "Speed Multipliers" at your taste
Here is the code:

{
  "Permission": "quicksmelt.use",
  "Use Permission": false,
  "Speed Multipliers": {
    "furnace": 5.0,
    "small.oil.refinery": 5.0,
    "furnace.large": 5.0,
    "campfire": 1.0,
    "global": 1.0
  },
  "Fuel Usage Speed Multipliers": {
    "furnace": 0.5,
    "small.oil.refinery": 0.5,
    "furnace.large": 0.5,
    "campfire": 1.0,
    "global": 1.0
  },
  "Fuel Usage Multipliers": {
    "furnace": 1,
    "small.oil.refinery": 1,
    "furnace.large": 1,
    "campfire": 1,
    "global": 1
  },
  "Output Multipliers": {
    "furnace": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "sulfur": 1.0,
      "metal.refined": 1.0
    },
    "small.oil.refinery": {
      "lowgradefuel": 1.0
    },
    "furnace.large": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "sulfur": 1.0,
      "metal.refined": 1.0
    }
  },
  "Whitelist": {
    "furnace": [
      "metal.ore",
      "sulfur.ore",
      "hq.metal.ore"
    ],
    "furnace.large": [
      "metal.ore",
      "sulfur.ore",
      "hq.metal.ore"
    ],
    "small.oil.refinery": [
      "lowgradefuel"
    ],
    "campfire": [
      "bearmeat",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw"
    ]
  },
  "Blacklist": {
    "furnace": [
      "bearmeat",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw"
    ],
    "furnace.large": [
      "bearmeat",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw"
    ],
    "campfire": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "global": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ]
  },
  "Smelting Frequencies (Smelt items every N smelting ticks)": {
    "global": 1,
    "furnace.shortname": 1
  },
  "Debug": false
}​

somethign wrong with mspeedie config file 
i get this when i copy his over mine

QuickSmelt v5.0.4: Failed to load config file (is the config file corrupt?) (Additional text encountered after finished reading JSON content: ​. Path '', line 277, position 1.)
[Quick Smelt] The configuration file contains an error and has been replaced with a default config.
The error configuration file was saved in the .jsonError extension
Loaded plugin Quick Smelt v5.0.4 by Iv Misticos

Could be a cut and paste error.
You can down load it here: https://github.com/mspeedie/Rust-Plugin-Fixes/blob/master/QuickSmelt.json

Could you give a exemple of food not burning, like a picture of the .config file where food will not burn in a camp fire and a BBQ or a video that explain the new way to set this.  thanks

Thanks to everyone who wrote out the full config! Everything is working for me minus the small oil refinery. It's still going the exact same speed. I'm using what Logan wrote. See below :D

 

{
  "Permission": "quicksmelt.use",
  "Use Permission": false,
  "Speed Multipliers": {
    "furnace": 10.0,
    "small.oil.refinery": 10.0,
    "furnace.large": 10.0,
    "campfire": 1.0,
    "BBQ": 1.0
  },
  "Fuel Usage Speed Multipliers": {
    "furnace": 10.0
  },
  "Fuel Usage Multipliers": {
    "furnace": 10,
    "small.oil.refinery": 10,
    "furnace.large": 10,
    "campfire": 1,
    "BBQ": 1
  },
  "Output Multipliers": {
    "furnace": {
      "charcoal": 10.0,
      "metal.fragments": 10.0,
      "sulfur": 10.0,
      "metal.refined": 10.0
    },
    "small.oil.refinery": {
      "lowgradefuel": 10.0
    },
    "furnace.large": {
      "charcoal": 10.0,
      "metal.fragments": 10.0,
      "sulfur": 10.0,
      "metal.refined": 10.0
    }
  },
  "Whitelist": {
    "furnace": [
      "metal.ore",
      "sulfur.ore",
      "hq.metal.ore"
    ],
    "furnace.large": [
      "metal.ore",
      "sulfur.ore",
      "hq.metal.ore"
    ],
    "small.oil.refinery": [
      "lowgradefuel"
    ],
    "campfire": [
      "deermeat.raw",
      "chicken.raw",
      "humanmeat.raw",
      "fish.raw",
      "bearmeat",
      "wolfmeat.raw",
      "meat.pork.raw"
    ],
    "BBQ": [
      "deermeat.raw",
      "chicken.raw",
      "humanmeat.raw",
      "fish.raw",
      "bearmeat",
      "wolfmeat.raw",
      "meat.pork.raw"
    ]
  },
  "Blacklist": {
    "furnace": [
      "deermeat.cooked",
      "chicken.cooked",
      "humanmeat.cooked",
      "fish.cooked",
      "bearmeat.cooked",
      "wolfmeat.cooked",
      "meat.pork.cooked"
    ],
    "furnace.large": [
      "deermeat.cooked",
      "chicken.cooked",
      "humanmeat.cooked",
      "fish.cooked",
      "bearmeat.cooked",
      "wolfmeat.cooked",
      "meat.pork.cooked"
    ],
    "campfire": [
      "deermeat.cooked",
      "chicken.cooked",
      "humanmeat.cooked",
      "fish.cooked",
      "bearmeat.cooked",
      "wolfmeat.cooked",
      "meat.pork.cooked"
    ],
    "BBQ": [
      "deermeat.cooked",
      "chicken.cooked",
      "humanmeat.cooked",
      "fish.cooked",
      "bearmeat.cooked",
      "wolfmeat.cooked",
      "meat.pork.cooked"
    ]
  },
  "Smelting Frequencies (Smelt items every N smelting ticks)": {
    "global": 1,
    "furnace.shortname": 1
  },
  "Debug": false
}​

Small oil refinery and BBQ shortnames are incorrect

not sure if this has anything to do with quicksmelt but i cant get oil to melt in large furnaces
Anyone got an idea why - i have to use the oil refinery.

IDK if it me but I found the 5000X speed multipler was not being applied to oil refineries. User error in config? @misticos

Oil in Furnace 5000X speed example (tested and working):

{
  "Permission": "quicksmelt.use",
  "Use Permission": false,
  "Speed Multipliers": {
    "bbq": 5000.0,
    "cursedcauldron": 5000.0,
    "campfire": 1.0,
    "fireplace.stone": 1.0,
    "furnace": 5000.0,
    "furnace.large": 5000.0,
    "small.oil.refinery": 5000.0
  },
  "Fuel Usage Speed Multipliers": {
    "bbq": 1.0,
    "cursedcauldron": 1.0,
    "campfire": 1.0,
    "fireplace.stone": 1.0,
    "furnace": 1.0,
    "furnace.large": 1.0,
    "small.oil.refinery": 1.0
  },
  "Fuel Usage Multipliers": {
    "bbq": 1,
    "campfire": 1,
    "cursedcauldron": 1,
    "fireplace.stone": 1,
    "furnace": 1,
    "furnace.large": 1,
    "small.oil.refinery": 1
  },
  "Output Multipliers": {
    "furnace": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "sulfur": 1.0,
      "metal.refined": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0,
      "lowgradefuel": 3.0
    },
    "small.oil.refinery": {
      "charcoal": 1.0,
      "lowgradefuel": 3.0
    },
    "furnace.large": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "sulfur": 1.0,
      "metal.refined": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0,
      "lowgradefuel": 3.0
    },
    "campfire": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "cursedcauldron": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "fireplace.stone": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "bbq": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    }
  },
  "Whitelist": {
    "furnace": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "hq.metal.ore",
      "humanmeat.raw",
      "meat.boar",
      "metal.ore",
      "sulfur.ore",
      "wolfmeat.raw",
      "wood",
      "crude.oil"
    ],
    "furnace.large": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "hq.metal.ore",
      "humanmeat.raw",
      "meat.boar",
      "metal.ore",
      "sulfur.ore",
      "wolfmeat.raw",
      "wood",
      "crude.oil"
    ],
    "small.oil.refinery": [
      "crude.oil",
      "lowgradefuel",
      "wood"
    ],
    "campfire": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "cursedcauldron": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "bbq": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "fireplace.stone": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ]
  },
  "Blacklist": {
    "furnace": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "furnace.large": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "campfire": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "cursedcauldron": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "fireplace.stone": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "bbq": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ]
  },
  "Smelting Frequencies (Smelt items every N smelting ticks)": {
    "global": 1,
    "bbq": 1,
    "cursedcauldron": 1,
    "campfire": 1,
    "fireplace.stone": 1,
    "furnace": 1,
    "furnace.large": 1,
    "small.oil.refinery": 1
  },
  "Debug": false
}​

Merged post

I noticed in my example above (for 5000X not processsing oil in furnaces) I was missing crude oil in my example you need to white list it for refineries, my bad, did not test it.  Updated on my linked example: https://github.com/mspeedie/Rust-Plugin-Fixes/blob/master/QuickSmelt.json

Hmmm, what is the shortname supposed to be then for the small oil refinery? It's still smelting at a normal pace even with it having "crude oil" added to the white list. 

ok error in above:

"lowgradefuel": 3.0​

needs to be:

"lowgradefuel": 1.0​

{
  "Permission": "quicksmelt.use",
  "Use Permission": false,
  "Speed Multipliers": {
    "bbq": 5000.0,
    "cursedcauldron": 5000.0,
    "campfire": 1.0,
    "fireplace.stone": 1.0,
    "furnace": 5000.0,
    "furnace.large": 5000.0,
    "small.oil.refinery": 5000.0
  },
  "Fuel Usage Speed Multipliers": {
    "bbq": 1.0,
    "cursedcauldron": 1.0,
    "campfire": 1.0,
    "fireplace.stone": 1.0,
    "furnace": 1.0,
    "furnace.large": 1.0,
    "small.oil.refinery": 1.0
  },
  "Fuel Usage Multipliers": {
    "bbq": 1,
    "campfire": 1,
    "cursedcauldron": 1,
    "fireplace.stone": 1,
    "furnace": 1,
    "furnace.large": 1,
    "small.oil.refinery": 1
  },
  "Output Multipliers": {
    "furnace": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "sulfur": 1.0,
      "metal.refined": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0,
      "lowgradefuel": 1.0
    },
    "small.oil.refinery": {
      "charcoal": 1.0,
      "lowgradefuel": 1.0
    },
    "furnace.large": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "sulfur": 1.0,
      "metal.refined": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0,
      "lowgradefuel": 1.0
    },
    "campfire": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "cursedcauldron": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "fireplace.stone": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    },
    "bbq": {
      "charcoal": 1.0,
      "metal.fragments": 1.0,
      "horsemeat.cooked": 1.0,
      "deermeat.cooked": 1.0,
      "chicken.cooked": 1.0,
      "humanmeat.cooked": 1.0,
      "fish.cooked": 1.0,
      "bearmeat.cooked": 1.0,
      "wolfmeat.cooked": 1.0,
      "meat.pork.cooked": 1.0
    }
  },
  "Whitelist": {
    "furnace": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "hq.metal.ore",
      "humanmeat.raw",
      "meat.boar",
      "metal.ore",
      "sulfur.ore",
      "wolfmeat.raw",
      "wood",
      "crude.oil"
    ],
    "furnace.large": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "hq.metal.ore",
      "humanmeat.raw",
      "meat.boar",
      "metal.ore",
      "sulfur.ore",
      "wolfmeat.raw",
      "wood",
      "crude.oil"
    ],
    "small.oil.refinery": [
      "crude.oil",
      "lowgradefuel",
      "wood"
    ],
    "campfire": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "cursedcauldron": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "bbq": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ],
    "fireplace.stone": [
      "bearmeat.raw",
      "can.beans",
      "can.tuna",
      "chicken.raw",
      "deermeat.raw",
      "fish.raw",
      "horsemeat.raw",
      "humanmeat.raw",
      "meat.boar",
      "wolfmeat.raw",
      "wood"
    ]
  },
  "Blacklist": {
    "furnace": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "furnace.large": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "campfire": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "cursedcauldron": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "fireplace.stone": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ],
    "bbq": [
      "bearmeat.cooked",
      "chicken.cooked",
      "deermeat.cooked",
      "fish.cooked",
      "horsemeat.cooked",
      "humanmeat.cooked",
      "meat.pork.cooked",
      "wolfmeat.cooked"
    ]
  },
  "Smelting Frequencies (Smelt items every N smelting ticks)": {
    "global": 1,
    "bbq": 1,
    "cursedcauldron": 1,
    "campfire": 1,
    "fireplace.stone": 1,
    "furnace": 1,
    "furnace.large": 1,
    "small.oil.refinery": 1
  },
  "Debug": false
}

I thought it was:
small.oil.refinery

maybe where I got it is wrong:
https://www.corrosionhour.com/rust-item-list/

my small refinery is smelting just fine and at a super fast rate as well.