Used to smelt large quantities of ore. Difficult to secure, must be placed on terrain.
Stack 1ID -1992717673furnace.large
Warms +30°C within 4 m
50% comfort within 4 m· speeds healing
Smelts oreBurns 
Wood
WoodSlots
18
inventory
Smelt speed
15
5× a Furnace
Slots are the total inventory (fuel + ingredients + output) — more slots means more can be processed at once.
Damage resistance
Bullet10% dmgFire50% dmgMelee50% dmgArrowimmune
Share of each damage type this deployable actually takes — lower is tougher. immune = that damage does nothing; over 100% means it takes extra (e.g. wood burns).
Crafting Recipe
Raw materials to farm
Research: 60 scrap at a Research Table
Tech tree
Unlocked right after:
Locker
The workbench tech-tree path (you research predecessors first) — see the full Workbench Tech Tree. Or research a found one for 60 scrap (above).Locker
Chainsaw
Cooking Workbench
Sulfur Ore
Metal Ore
High Quality Metal Ore
Empty Can Of Beans
Empty Tuna CanRecycling
| Recycler | Guaranteed Output | Extra Output | Efficiency |
|---|---|---|---|
| Recycler | 60 % | ||
| Safe Zone Recycler | 40 % |
Cost Flowbuild · break down · destroy
Qty
Build
40sWB 2
Raw to farm
Raid
1,500 HPSatchel Chargebest×6
2,880 sul
C4×3
6,600 sul
Explosive 5.56×300
7,500 sul
Rocket×6
8,400 sul
Cheapest sulfur cost first.
Looted From
| Container | Condition | Amount | Chance |
|---|---|---|---|
| Locked Crate (Oil Rig) | 100 % | 1 | 1.3% |
| Hackable Locked Crate | 100 % | 1 | 1.3% |
| Elite Crate | 100 % | 1 | 1% |
| Elite Tier Crate | - | 1 | 1 % |
| Ghost Ship Locked Crate | - | 1 | 1 % |
| Locked Crate | - | 1 | 1 % |
| Oil Rig Locked Crate | - | 1 | 1 % |
| Treasure Box | - | 1 | 1 % |
| Underwater Lab Elite Crate | - | 1 | 1 % |
| Underwater Lab Yellow Crate | - | 1 | 1 % |
| Wagon Military Crate | - | 1 | 1 % |
| Christmas Tunnel Crate | 100 % | 1 | 0.7% |
| Military Crate | 100 % | 1 | 0.7% |
| Heavy Scientist | 100 % | 1 | 0.1% |
| Elite Crate Scientist | 100 % | 1 | 0.1% |
Destroyed By
Loading raid data…
Destroyed by — explosives
 Rocket | ×6 | 8,400 sulfur |
 C4 | ×3 | 6,600 sulfur |
 Explosive Ammo | ×300 | 7,500 sulfur |
Whole amounts to destroy one (1,500 HP). All raid costs →
Relationship Map
Every way Large Furnace connects to the rest of the game.
Large FurnaceCrafts from3
Recycles to3
Loot from15
Unlocked after1
Unlocks next2