The Ultimate Furnace Mod introduces a powerful, self-sustaining furnace to Minecraft with a leveling system and unique functionality, designed to simplify smelting and add a progression element.

Here’s an overview:

Self-Sustaining Smelting:

The Ultimate Furnace doesn’t need fuel in the traditional sense. It remains "active" and smelts items during the day automatically by using sunlight. At night, the furnace uses stored power from the day, but be careful if this goes out the furnace takes a breake.

Leveling and Upgrades:

The furnace includes a leveling system that unlocks upgrades as the player smelts more items. With each level-up, the furnace starts to smelt items faster, stores up sunlight faster, and has more power storage.

Custom GUI Design:

The Ultimate Furnace features a custom GUI that is unique but known. The GUI includes a bar that shows how much progress you have for the next level, A fire icon is displayed only when the furnace is actively smelting, so players can see at a glance if the furnace is in operation. Also adding a way to see how much power is stored up.

This mod enhances Minecraft’s smelting process by adding a furnace that doesn’t rely on constant fuel, coupled with a rewarding progression system. It's ideal for players who want more control over smelting while reducing the need to manage resources like coal or lava. The custom GUI and visual feedback create a smooth, integrated experience in the Minecraft environment.

The mod also adds The Hot Plate block when powered sets entities which step on it on fire, it's also a crucial part of the Ultimate Furnace's crafting recipe

Disclaimer

This description is for version 1.21.X, older versions have fewer functions and worse-looking GUI