Rust Conveyor Configs, each is generalized currently, meaning it works for any furnace etc. Copy these and HOLD SHIFT IN CONVEYOR MENU TO PASTE JSON

Auto Charcoal.json

[
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 6,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "wood"
  }
]

Furnace.json

[
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 15,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "metal.ore"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 25,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "sulfur.ore"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 7,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "hq.metal.ore"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 3,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "can.tuna.empty"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 3,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "can.beans.empty"
  }
]

Output.json

[
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 0,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "metal.fragments"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 0,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "sulfur"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 0,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "metal.refined"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 0,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "charcoal"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 0,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "lowgradefuel"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 0,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "wolfmeat.burned"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 0,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "humanmeat.burned"
  }
]

Refinery.json

[
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 10,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "wood"
  },
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 4,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "crude.oil"
  }
]

Wood.json

[
  {
    "TargetCategory": null,
    "MaxAmountInOutput": 11,
    "BufferAmount": 0,
    "MinAmountInInput": 0,
    "IsBlueprint": false,
    "BufferTransferRemaining": 0,
    "TargetItemName": "wood"
  }
]