Iron Chest: 54 slots
Magnetic Chest: 54 slots + Magnet ability, capable of pulling items within a 10x10 radius.
Golden Chest: 72 slots
Linked Chest: 72 slots + It has the ability, when clicked, to open an interface where you can set a code. By using the same code on another chest, the inventories of both will be shared.
Amethyst Chest: 90 slots
Emerald Chest: 108 slots
Diamond Chest: 126 slots
Obsidian Chest: 126 slots + Explosion resistance.
Netherite Chest: 144 slots + Explosion resistance and immunity to fire and lava.

Copper Furnace: 9 seconds
Iron Furnace: 8 seconds
Golden Furnace: 7 seconds
Amethyst Furnace: 6 seconds
Emerald Furnace: 4 seconds
Diamond Furnace: 1 seconds
Obsidian Furnace: 1 seconds + Explosion resistance.
Netherite Furnace: 4 items per second + Explosion resistance and immunity to fire and lava.

The furnaces display a particle effect when they start smelting something.

The furnaces have an inlet slot, an outlet slot, a fuel slot, and 3 upgrade slots.

Speed Upgrade: Increases furnace speed by 1 for each upgrade placed, up to a maximum of 3.
Fuel Upgrade: fuels last twice as long
XP Upgrade: When heating something you will receive double experience.
Instant heating Upgrade: All items in the input slot will be heated instantly, just leave the output slot empty.

If the input slot is empty and there is a hopper on top of it, it will place items inside the furnace.
If the fuel slot is empty and there is a hopper on either side of the furnace, it will place fuel-related items inside the furnace.
If there is a hopper underneath and there are items in the output slot, the items will be removed automatically.

Beyond Storage & Smelting v1.2 (New Linked Chest, Upgrade Icons & Vibrant Visuals Fix)