Here I will list the amount of resources that can be cooked in a furnace per one fuel bit for each type of fuel. The vanilla list is completed while the modded list is still a work in progress. The mods included in the list are limited to the mods used in the Void Sandbox of Chaos and Mayhem server. This is a private server made for the creator of this website and their friends.
The List!
Vanilla
Fuel Type
Efficiency
Lava Bucket
100
Block of Coal
80
Dried Kelp Block
20
Blaze Rod
12
Charcoal
8
Coal
8
Boat
6
Boat with Chest
6
Log
1.5
Wood
1.5
Wooden Planks
1.5
Wooden Fence
1.5
Wooden Fence Gate
1.5
Wooden Stairs
1.5
Ladder
1.5
Wooden Pressure Plate
1.5
Wooden Trapdoor
1.5
Mangrove Roots
1.5
Crafting Table
1.5
Cartography Table
1.5
Fletching Table
1.5
Smithing Table
1.5
Loom
1.5
Bookshelf
1.5
Lectern
1.5
Composter
1.5
Chest
1.5
Trapped Chest
1.5
Barrel
1.5
Daylight Detector
1.5
Jukebox
1.5
Note Block
1.5
Banner
1.5
Crossbow
1.5
Bow
1.5
Fishing Rod
1
Wooden Axe
1
Wooden Hoe
1
Wooden Pickaxe
1
Wooden Shovel
1
Wooden Sword
1
Wooden Door
1
Wooden Sign
1
Wooden Slab
0.75
Wooden Button
0.5
Bowl
0.5
Sapling
0.5
Stick
0.5
Azalea
0.5
Wool
0.5
Carpet
0.335
Scaffolding
0.25
Bamboo
0.25
Modded
Adorn
Fuel Type
Efficiency
Wooden Post
1.5
Immersive Weathering
Fuel Type
Efficiency
Bark
1
The Twilight Forest
Fuel Type
Efficiency
Banister
1.5