Furnace
Smelts ore into metal fragments, high quality metal, sulfur and charcoal.
How to Make a Furnace in Rust
200× Stones + 100× Wood + 50× Low Grade Fuel → Furnace (Hand craft, 30s)— default blueprint, no research
Stones, Wood and Low Grade Fuel — no workbench, no blueprint, buildable from the moment you spawn. It takes 15 seconds to craft and doesn't need to be placed inside a base to work, though it will decay and can be stolen from if it's left outside your Tool Cupboard's range.
Why the Low Grade Fuel matters
Most starter recipes don't ask for fuel at all, so it's easy to queue a furnace craft and get stuck short — make sure you've skinned a few animals for fat (see the low grade fuel guide) before you try to place one, not after.
One furnace isn't enough for long
A single furnace smelts slowly, and ore piles up fast once you're mining seriously. Most bases run two or three furnaces side by side within the first hour, and a Large Furnace (unlocked separately) later on for real bulk smelting — don't treat the first one as a permanent setup.
What it's actually for
The furnace is what turns Metal Ore into Metal Fragments and High Quality Metal, and Sulfur Ore into Sulfur — it's the single most load-bearing structure in your early base. Placing one is usually the first thing worth doing after a sleeping bag.
Crafting
| Stones | ×200 |
 Wood | ×100 |
 Low Grade Fuel | ×50 |
Blueprint
Default blueprint — known from the start, no research required.
Recycling
| Stones | ×80 |
| Wood | ×40 |
| Low Grade Fuel | ×20 |
| Stones | ×120 |
| Wood | ×60 |
| Low Grade Fuel | ×30 |
Radtown recyclers (found in monuments) give more than the safe-zone recyclers at Outpost and Bandit Camp. A percentage next to a yield is the chance of receiving it.
Repair
| Stones | ×40 |
| Wood | ×20 |
| Low Grade Fuel | ×10 |
Cost shown is the maximum, to repair from near-broken to full condition.
| Stones | ×97 |
| Wood | ×50 |
| Low Grade Fuel | ×28 |
Cost shown is the maximum, to repair from near-broken to full condition.
Decay & Upkeep
Popular Furnace Skins
All skins →| Skin | Steam Market | Skinport | DMarket | Waxpeer | Best |
|---|---|---|---|---|---|
 Diving Furnace | $0.62 | $0.46 | $0.42 | $0.36 | $0.36 |
 Wrapped Furnace | $0.65 | $0.46 | $0.42 | $0.54 | $0.42 |
 Tiger Crown Furnace | $0.66 | $0.48 | $0.60 | $0.44 | $0.42 |
 Junkyard Furnace | $0.70 | $0.52 | $0.59 | $0.45 | $0.43 |
 Aztec Furnace | $0.73 | $0.50 | $0.51 | $0.43 | $0.43 |
 Year of the Rabbit Furnace | $0.70 | $0.51 | $0.58 | $0.43 | $0.43 |
 Military Furnace | $0.73 | $0.60 | $0.57 | $0.43 | $0.43 |
 Angry Furnace | $0.66 | $0.58 | $0.99 | $0.44 | $0.44 |
 Bio Integrity Furnace | $0.70 | $0.50 | $0.58 | $0.44 | $0.44 |
 Ocean Castle Furnace | $0.66 | $0.53 | $0.58 | $0.46 | $0.45 |
 Cactus Furnace | $0.73 | $0.56 | $0.63 | $0.45 | $0.45 |
 Oasis Furnace | $0.66 | $0.57 | $0.46 | $0.45 | $0.45 |
 Neanderthal Furnace | $0.69 | $0.45 | $0.49 | $0.47 | $0.45 |
 Zucchini Furnace | $0.72 | $0.56 | $0.45 | $0.52 | $0.45 |
 Shippy & Friends Furnace | $0.71 | $0.53 | $0.59 | $0.45 | $0.45 |
 Bomb Furnace | $0.73 | $0.56 | $0.65 | $0.45 | $0.45 |
 Mad Iron Furnace | $0.72 | $0.56 | $0.61 | $0.49 | $0.46 |
 Fossil Furnace | $0.74 | $0.51 | $0.79 | $0.46 | $0.46 |
 Birch Furnace | $0.73 | $0.66 | $0.48 | $0.46 | $0.46 |
 Brutal Furnace | $0.78 | $0.58 | $0.57 | $0.47 | $0.47 |
 Twisted Furnace | $0.77 | $0.57 | $0.53 | $0.47 | $0.47 |
 Cannibal Furnace | $0.86 | $0.72 | $0.48 | $0.62 | $0.48 |
 Castaway Furnace | $0.74 | $0.56 | $0.58 | $0.49 | $0.49 |
 Cookie Maker Furnace | $0.77 | $0.57 | $0.54 | $0.50 | $0.49 |
 Urban Furnace | $0.77 | $0.57 | $1.28 | $0.51 | $0.49 |
 Rainbow Furnace | $0.75 | $0.63 | $0.50 | $0.49 | $0.49 |
 Spraycan Furnace | $0.73 | $0.58 | $0.63 | $0.49 | $0.49 |
 Adobe Furnace | $0.81 | $0.57 | $0.64 | $0.49 | $0.49 |
 Ritual Furnace | $0.70 | $0.52 | $0.53 | $0.52 | $0.49 |
 Sea Devil Furnace | $0.75 | $0.57 | $0.50 | $0.55 | $0.50 |
Related guides
A no-BS Rust base design guide: building tiers, upkeep, tool cupboards, bunkers, airlocks and honeycomb, plus the raid costs that actually matter.
How the tool cupboard works in Rust: building privilege and the 50m radius, daily upkeep costs, decay timers for every tier, and how to place and protect your TC.
A real player's Rust raid guide: exact sulfur costs per structure, C4 vs rockets vs satchels vs eco raiding, online/offline tactics and defence.