{
    "variants": {
        "type=burning": { "model":"modid:lit_furnace" },
        "type=idle": { "model":"modid:furnace" }
        "facing=north": { "model": "modid:furnace"},
        "facing=south": { "model": "modid:furnace", "y": 180 },
        "facing=west":  { "model": "modid:furnace", "y": 270 },
        "facing=east":  { "model": "modid:furnace", "y": 90 },
    }
}