FastFurnace
Performance optimizations for the furnace
About this Mod
About
FastFurnace utilizes mixins to edit the functionality of the Furnace, Blast Furnace, and Smoker, improving their TPS performance (not smelting
speed!)
Similar to FastWorkbench, it caches the last recipe used, and checks this recipe first before re-scanning the entire registry. This is
significantly faster due to the vanilla furnace scanning the entire furnace registry each tick, which may be fine for vanilla, but in a modded
environment, gets very large very quickly.
These changes apply to the Furnace, Blast Furnace, and Smoker. Any mod utilizing AbstractFurnaceTileEntity will also receive the benefits of having
this mod installed.
For people who like numbers, here is Vanilla vs FastFurnace. This is 9
furnaces each smelting cobblestone the entire time the test was conducted. The number of invocations is kept roughly the same as to not skew any
numbers. This test was conducted in vanilla, which only has ~70 furnace recipes. In a modpack, there could be upwards of 700, significantly
increasing the performance gain.
Be sure to also check out FastWorkbench & Toast
Control!
Support Me
Contact
Discord: https://discord.gg/wdvU5Yz
Available Versions
How to Install FastFurnace 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 (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "FastFurnace". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 1.21.1, 1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
FastFurnace 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 (26.1.2). You can switch loaders with one click in the panel.
Is FastFurnace compatible with forge and neoforge?
FastFurnace officially supports forge, neoforge for Minecraft 26.1.2, 1.21.1, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with FastFurnace – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if FastFurnace 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.
Similar Mods
Rent Modded Server
Install FastFurnace with just one click on your server.