Realistic Furnace

Players assemble the furnace as a multiblock structure, and its smelting speed depends on the heat it reaches. Higher heat shortens the smelting process. Each item has a heat requirement that can be checked in JEI, and an item that is smelted without enough heat is lost and returns an unexpected product. Heat thresholds can lock items behind specific fuels, and the temperature display can be switched between Celsius and Fahrenheit in the configs.

The recipes and fuels are customizable, including recipes for modded items, and an option can add an overheated outcome for each processed item. Players can also build their own multiblock structure, with a block palette that can be scanned, saved and selected in the game. Commands are available for players who want to adjust the setup. Because the default structure does not fit diagonal walls, a tutorial covers a fix for modded walls, and the wiki explains the fuel setup in detail.

The mod is released under the GNU Lesser General Public License v3.0 only and is open source, with public source code and an issue tracker. It is published for Forge and its files target 1.20.1 – 1.20.6, with 1.1.3-1.20.1 as the latest file for 1.20.1. Players who use the Furnace Multiblock need JEI for the heat display; the environment is client and server, so both sides run it.