Crafting · Hammer
Blast Furnace
Some metals need higher temperatures to melt.
Health
2,000
Stone
Needs nearby
Prefab ID
blastfurnaceBuild cost
What it makes
Fuel 
Coal: 2 per item, holds 20. 30 s per item, holds 10 to process.
| Put in | Get | Time / amount |
|---|---|---|
 Flametal Ore |  Flametal | — |
 Black Metal Scrap |  Black Metal | — |
| Flametal Ore | Flametal | — |
 Petrified Tissue |  Bloodgold | — |
Details
- Material
- Stone
- Burns
- yes
- Takes
- Resistant to Blunt, Resistant to Slash, Resistant to Pierce, Resistant to Chop, Immune to Fire, Immune to Frost, Immune to Poison, Immune to Spirit
Source: prefab blastfurnace (Piece, WearNTear) in Valheim 1.0.16 (2026-09-24).