Heavy Furnace

Heavy Furnace

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 can be crafted after claiming Mining Mastery. It takes 25 ores (or 5 quartz or fire quartz) and 3 Coal to run.

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. Each possible output stack size is equally likely, i.e. ores have a 50% chance of yielding 5 bars and a 50% chance of yielding 6 bars.^[1]

When smelting bars, on average, 9% of the ore and 45% of the Coal is saved in comparison to normal Furnaces.

Input	Output	Time to smelt	Sells For (Unit)	Sells For (Average total)
Bouquet (1)	Wilted Bouquet (1)	≤10m	data-sort-value="100">100g
Copper Ore (25)	Copper Bar (5-6)	30m	data-sort-value="60">60g	data-sort-value="330">330g
Quartz (5)	Refined Quartz (5-6)	90m (1h 30m)	data-sort-value="50">50g	data-sort-value="275">275g
Fire Quartz (5)	Refined Quartz (15-20)	90m (1h 30m)	data-sort-value="50">50g	data-sort-value="875">875g
Iron Ore (25)	Iron Bar (5-6)	120m (2h)	data-sort-value="120">120g	data-sort-value="660">660g
Gold Ore (25)	Gold Bar (5-6)	300m (5h)	data-sort-value="250">250g	data-sort-value="1375">1,375g
Iridium Ore (25)	Iridium Bar (5-6)	480m (8h)	data-sort-value="1000">1,000g	data-sort-value="5500">5,500g
Radioactive Ore (25)	Radioactive Bar (5-6)	560m (9h 20m)	data-sort-value="3000">3,000g	data-sort-value="16500">16,500g

References

↑ See Data\Machines.xnb in the game files. The output size is chosen using MinStack and MaxStack, which are not affected by any modifiers.

History

1.6: Introduced.

Equipment
Artisan		Bee House • Cask • Cheese Press • Dehydrator • Fish Smoker • Keg • Loom • Mayonnaise Machine • Oil Maker • Preserves Jar
Refining		Bait Maker • Bone Mill • Charcoal Kiln • Crystalarium • Deluxe Worm Bin • Furnace • Geode Crusher • Heavy Furnace • Heavy Tapper • Lightning Rod • Mushroom Log • Ostrich Incubator • Recycling Machine • Seed Maker • Slime Egg-Press • Slime Incubator • Solar Panel • Tapper • Wood Chipper • Worm Bin
Farming	Fertilizer	Basic Fertilizer • Basic Retaining Soil • Deluxe Fertilizer • Deluxe Retaining Soil • Deluxe Speed-Gro • Hyper Speed-Gro • Quality Fertilizer • Quality Retaining Soil • Speed-Gro • Tree Fertilizer
	Sprinklers	Iridium Sprinkler • Quality Sprinkler • Sprinkler
	Other	Deluxe Scarecrow • Garden Pot • Rarecrow • Scarecrow
Fishing	Bait	Bait • Challenge Bait • Deluxe Bait • Magic Bait • Magnet • Targeted Bait • Wild Bait
	Tackle	Barbed Hook • Cork Bobber • Curiosity Lure • Dressed Spinner • Lead Bobber • Quality Bobber • Sonar Bobber • Spinner • Trap Bobber • Treasure Hunter
	Other	Crab Pot
Bombs		Bomb • Cherry Bomb • Mega Bomb
Fences		Gate • Hardwood Fence • Iron Fence • Stone Fence • Wood Fence
Storage		Big Chest • Big Stone Chest • Chest • Junimo Chest • Mini-Fridge • Stone Chest
Signs		Dark Sign • Stone Sign • Text Sign • Wood Sign
Misc		Anvil • Coffee Maker • Cookout Kit • Deconstructor • Fairy Dust • Farm Computer • Hopper • Mini-Forge • Mini-Jukebox • Mini-Shipping Bin • Sewing Machine • Staircase • Statue Of Blessings • Statue Of The Dwarf King • Telephone • Tent Kit • Tools • Workbench

[extraBars-1] See Data\Machines.xnb in the game files. The output size is chosen using MinStack and MaxStack, which are not affected by any modifiers.

[1]