
Jumbo Furnace
Adds a multiblock furnace that can smelt multiple items at once
Screenshots





About this Mod
Jumbo Furnace is a mod that adds the Jumbo Furnace. The Jumbo Furnace can be created by placing 27 furnace blocks in a 3x3x3 cube. You can itemize the jumbo furnace by using shears on it or baking 27 furnaces in a jumbo furnace.

The Jumbo Furnace has a larger inventory than a regular furnace. Because the Jumbo Furnace can smelt multiple recipes at a time, it has a fixed cooking cycle time for all jumbo smelting recipes (specified in your world folder's serverconfig/jumbofurnace-server.toml file). Vanilla smelting recipes with higher cooking times than jumbo furnace's cycle time cannot be smelted in the jumbo furnace.

The Jumbo Furnace is fully compatible with hoppers and other item handlers; the top faces access the input inventory, the side faces access the fuel inventory, and the bottom faces access the output inventory.

The Jumbo Furnace supports recipes that require up to nine ingredients. The Jumbo Furnace supports the standard ingredient types added by Minecraft and by Forge, and should generally work with json ingredient types added by other mods. These recipes can be defined in json by using the "jumbofurnace:jumbo_smelting" recipe type. An example of a jumbo smelting recipe:
{
"type": "jumbofurnace:jumbo_smelting",
"ingredients":
[
{
"type": "forge:nbt",
"item": "minecraft:furnace",
"count": 27
}
],
"result":
{
"item": "jumbofurnace:jumbo_furnace"
},
"experience": 0.1
}
Available Versions
How to Install Jumbo Furnace on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Jumbo Furnace". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Jumbo Furnace server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.
Is Jumbo Furnace compatible with forge and neoforge?
Jumbo Furnace officially supports forge, neoforge for Minecraft 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Jumbo Furnace – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Jumbo Furnace consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Jumbo Furnace with just one click on your server.