Heavy Furnace
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| Heavy Furnace | |
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| It's more efficient than a regular furnace. Requires 25 pieces of ore and 3 coal per use. | |
| Information | |
| Source | Crafting |
| Sell Price | Cannot be sold |
| Crafting | |
| Recipe Source | Mining Mastery |
| Ingredients |  Furnace (2) Iron Bar (3) Stone (50) |
{{#seo:
|keywords=Stardew Valley Wiki, Stardew Valley, Heavy Furnace, gift |site_name=Stardew Valley Wiki |type=article |title=Heavy Furnace - Stardew Valley Wiki }} The Heavy Furnace is an improved version of the furnace. It takes 25 ores (or 5 quartz) and 3 Coal to run it.
Smelting
To smelt any ore, equip it and activate the furnace while there is Coal in inventory. Three units of Coal are required for each smelting operation, regardless of the material or duration.
| Input | Output | Time to smelt | Sells For(Unit) | Sells For(Total) |
|---|---|---|---|---|
 Copper Ore (25)
|
 Copper Bar (5)
|
 30m
|
 60g
|
300g
|
 Quartz (5)
|
 Refined Quartz (5)
|
90m (1h 30m)
|
50g
|
250g
|
 Fire Quartz (5)
|
Refined Quartz (15)
|
90m (1h 30m)
|
50g
|
750g
|
 Iron Ore (25)
|
Iron Bar (5)
|
120m (2h)
|
120g
|
600g
|
 Gold Ore (25)
|
 Gold Bar (5)
|
300m (5h)
|
250g
|
1,250g
|
 Iridium Ore (25)
|
 Iridium Bar (5)
|
480m (8h)
|
1,000g
|
5,000g
|
 Radioactive Ore (25)
|
 Radioactive Bar (5)
|
560m (9h 20m)
|
3,000g
|
15,000g
|
History
- 1.6: Introduced.