
Ultimate Furnace
The Ultimate Furnace Mod adds a fuel-free, solar-powered furnace that levels up to smelt faster and store more energy. At night, it uses stored power. The mod also adds the Copper Plate Block, which reacts to temperature.
Ultimate Furnace 1.3.3-1.21.0-1
release10 ноября 2025 г.Changes & Additions
-
Copper Plate texture restored
The Copper Plate now displays its texture correctly again. -
Smelting progress is preserved
When breaking and replacing a furnace that has ongoing or completed smelting progress, that progress is no longer lost. Existing furnaces will retain their progress after mining or moving them. -
New configuration file
Added a customizable config where you can tweak:- Furnace levels
- Stored power capacity
- Smelting speed
- Other progression values
After editing the config, you can apply changes in-game using the command: "/ultimatefurnace reload"
Notes
- Config changes apply instantly after running the reload command.
Ultimate Furnace 1.3.3-1.21.2-4
release10 ноября 2025 г.Changes & Additions
-
Copper Plate texture restored
The Copper Plate now displays its texture correctly again. -
Smelting progress is preserved
When breaking and replacing a furnace that has ongoing or completed smelting progress, that progress is no longer lost. Existing furnaces will retain their progress after mining or moving them. -
New configuration file
Added a customizable config where you can tweak:- Furnace levels
- Stored power capacity
- Smelting speed
- Other progression values
After editing the config, you can apply changes in-game using the command: "/ultimatefurnace reload"
Notes
- Config changes apply instantly after running the reload command.
Ultimate Furnace 1.3.2-1.21.5
release13 мая 2025 г.Ultimate Furnace v1.3.2-1.21.5 Changelog
Overview
This update refines energy management and visual feedback, ensuring a more realistic and efficient smelting experience during nighttime operations.
Changes
-
Nighttime Smelting Regulation:
The furnace now checks for sufficient stored power during the night. When energy reserves run out, smelting ceases automatically and will not start until the day comes around. -
Enhanced GUI Feedback:
The fire icon within the furnace GUI now accurately reflects operational status—it starts and stops in sync with the smelting process, offering clear visual cues. -
Code Optimizations:
Various bug fixes and optimizations have been applied for improved performance and overall stability.
Ultimate Furnace 1.3.1-1.21.5
release2 мая 2025 г.Updated to 1.21.5
Ultimate Furnace 1.3.1-1.21.0-1
release1 мая 2025 г.Fixed some bugs and made features from 1.21.2-4 work in 1.21.0-1

