NaturesAura/src/generated/resources/data/naturesaura/loot_tables/blocks/furnace_heater.json

{
    "type": "minecraft:block",
    "pools": [
        {
            "rolls": 1,
            "entries": [
                {
                    "type": "minecraft:item",
                    "name": "naturesaura:furnace_heater"
                }
            ],
            "conditions": [
                {
                    "condition": "minecraft:survives_explosion"
                }
            ]
        }
    ]
}