Efficiency
Stardew Valley Ore and Coal Economy Guide
Compared with ordinary Furnaces, Heavy Furnace saves about 9% ore and 45% Coal on average when smelting bars. That makes it strongest for Iridium, Radioactive, and other high-volume mining routes.
Route facts
- Category
- Efficiency
- Focus
- Average 9% ore savings and 45% Coal savings
- Source
- https://stardewvalleywiki.com/Heavy_Furnace#Smelting
Checklist
- Prioritize expensive or bottleneck ores before low-pressure Copper and Iron stacks.
- Use Dwarf King coal days, dust sprite routes, and charcoal planning to feed batches.
- Count Heavy Furnace as a Coal saver for bombs, Fish Smokers, preserves jars, and other machine plans.