Iron Furnaces guide for All the Mods 10 0.32 to 0.50

Same as in the All the Mods 10 0.51 guide

Iron Furnaces is the mod that fixes the humble vanilla furnace. Inspired by Iron Chests, it adds a whole ladder of upgraded furnaces with faster smelting, configurable sides for automation, and augments that turn a furnace into a smoker, a blast furnace and more. This pack ships version 4.2.5.^[1][2]

It is aimed at anyone who wants better smelting before they commit to a full tech mod. The furnaces work on plain solid fuel, they slot straight into hoppers and pipes thanks to reconfigurable sides, and they are cheap enough to be worth building on day two. The mod also has explicit compatibility with JEI and Project MMO, so recipes and progression hook in cleanly.^[1]

Where it fits in the pack

The pack puts Iron Furnaces right at the start of the main questline. An early quest asks you for your first upgraded furnace, accepting Iron Furnace, Copper Furnace, Stone to Iron Furnace Upgrade or Stone to Copper Furnace Upgrade, and the quest directly after it wants any one augment. That makes it one of the first real progression steps you take.^[3]

From there the mod gets its own run of quests in the generators chapter, which walks you up the tiers in order.^[4]

1. Start with Iron Furnace and Copper Furnace, which unlock the rest of the branch.^[4]
2. Move up through Silver Furnace and Golden Furnace, then Diamond Furnace.^[4]
3. Branch into Crystal Furnace and Emerald Furnace, which together lead to Obsidian Furnace and then Netherite Furnace.^[4]
4. Finish with Rainbow Core and eight Rainbow Plating to build the Rainbow Furnace, then unlock Rainbow Coal.^[4]

Alongside the tier ladder there are side quests for the utility items: the Wireless Heat Transmitter and Wireless Heat Receiver pair, the Furnace Settings Linker for cloning furnace settings, and the cosmetic Furnace Wrapping Papers and Furnace Spooka-lator.^[4]

Same as in the All the Mods 10 4.5 guide

Iron Furnaces is inspired by cpw's Iron Chests and adds a ladder of furnace tiers, plus augments that change how each furnace works. In All the Mods 10 you'll run into it early, because the main questline asks for your first upgraded furnace right away.^[1][5]

Step 1: Your first upgraded furnace

The main questline step a quest in "?" accepts any one of four items: an Iron Furnace, a Copper Furnace, a Stone to Iron Furnace Upgrade or a Stone to Copper Furnace Upgrade. Pick whichever you can afford first. The Iron and Copper Furnaces are also the two starting quests of the generators chapter, a quest in "?" and a quest in "?".^[5][6]

Iron FurnaceMod recipe

Crafting Shaped

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any iron ingot	any iron ingot	any iron ingot
any iron ingot	Furnace	any iron ingot
any iron ingot	any iron ingot	any iron ingot

Recipe id: ironfurnaces:furnaces/iron_furnace

Built from a vanilla furnace

Copper FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any copper ingot	any copper ingot	any copper ingot
any copper ingot	Furnace	any copper ingot
any copper ingot	any copper ingot	any copper ingot

Recipe id: ironfurnaces:furnaces/copper_furnace

Built from a vanilla furnace

If you've already placed a furnace and don't want to break it, craft the upgrade item instead. Upgrades are used in the world: hold one, sneak and right-click the furnace.^[7][8]

Stone to Iron Furnace UpgradeMod recipe

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any iron ingot	any iron ingot	any iron ingot
any iron ingot	any stone tool material	any iron ingot
any iron ingot	any iron ingot	any iron ingot

Recipe id: ironfurnaces:upgrades/upgrade_iron

Stone to Copper Furnace UpgradeMod recipe

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any copper ingot	any copper ingot	any copper ingot
any copper ingot	any stone tool material	any copper ingot
any copper ingot	any copper ingot	any copper ingot

Recipe id: ironfurnaces:upgrades/upgrade_copper

Step 2: Grab an augment

Right after that, the main questline step a quest in "?" asks for any one augment. To install an augment, right-click with it on the furnace. The two most useful early picks do opposite things, so choose based on whether you're short on time or on fuel.^[5][8]

• Augment: Speed halves the cook time for all recipes, but the furnace uses twice as much fuel.^[8]
• Augment: Fuel Efficiency makes fuel heat the furnace twice as much, but cook time for all recipes is 25% slower.^[8]
• Augment: Blasting and Augment: Smoking limit the furnace to blasting recipes or to smoking recipes only.^[8]
• Augment: Generator turns the furnace's heat into power, but the furnace can no longer smelt. Augment: Factory turns the furnace into a factory that runs on power instead of fuel.^[8]

Augment: SpeedMod recipe

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any stone	any redstone dust	any stone
Paper	Sugar	Paper
any stone	any redstone dust	any stone

Recipe id: ironfurnaces:augments/augment_speed

Augment: Fuel EfficiencyMod recipe

Crafting Shaped

Crafting Shaped

any stone	any redstone dust	any stone
Paper	Coal	Paper
any stone	any redstone dust	any stone

Recipe id: ironfurnaces:augments/augment_fuel

Step 3: Climb the early tiers

The generators chapter continues with the Silver Furnace (a quest in "?"), which unlocks after the Iron and Copper quests. It's followed by the Golden Furnace (a quest in "?") and then the Diamond Furnace. Each tier's recipe uses the furnace from the tier below, so keep your old furnace to upgrade it. You can reach Silver from either an Iron or a Copper Furnace.^[6][7]

Silver FurnaceMod recipe

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any silver ingot	any colorless glass blocks	any silver ingot
any colorless glass blocks	any iron furnace	any colorless glass blocks
any silver ingot	any colorless glass blocks	any silver ingot

Recipe id: ironfurnaces:furnaces/silver_furnace

From an Iron Furnace

Silver FurnaceMod recipe

Crafting Shaped

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any silver ingot	any silver ingot	any silver ingot
any silver ingot	any copper furnace	any silver ingot
any silver ingot	any silver ingot	any silver ingot

Recipe id: ironfurnaces:furnaces/silver_furnace2

From a Copper Furnace

Unverified The exact smelting speed of each furnace tier in this pack could not be confirmed from the available sources.

Iron Furnaces is a tiered take on the vanilla furnace: instead of one block, you get a ladder of upgraded furnaces plus a system of augments that change how each one behaves. The mod's own pitch is speed, reconfigurable sides and augments for smoking and blasting, and in this pack it also plugs into the pack's late-game metals with Allthemodium, Vibranium and Unobtainium tiers.^[1][9]

The tier ladder

Almost every furnace in this pack is crafted from the tier below it, so you upgrade rather than restart. A vanilla furnace gets you into Copper Furnace or Iron Furnace; from there the chain runs through Silver Furnace and Golden Furnace into Diamond Furnace, then splits into Emerald Furnace and Crystal Furnace, which both feed into Obsidian Furnace.^[9]

Past obsidian the ladder continues into Netherite Furnace, and then the pack-metal tiers: Allthemodium Furnace, Vibranium Furnace and Unobtainium Furnace, each built from the previous furnace plus that metal's ingots and blocks. The top of the tree, Rainbow Furnace, is built from Rainbow Core and Rainbow Plating instead.^[9]

Netherite FurnaceChanged by the pack

Crafting Shaped

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any netherite ingot	Magma Cream	any netherite ingot
Magma Cream	any obsidian furnace	Magma Cream
any netherite ingot	any soul fire base block	any netherite ingot

Recipe id: ironfurnaces:furnaces/netherite_furnace

Changed by the pack.

You don't have to break a furnace to move up a tier. The upgrade items tell you to sneak and right-click to upgrade, so you can apply the next tier directly to a furnace that's already placed.^[10]

Augments

Augments are the real mechanic here. Each one is a small crafted item, and the tooltip tells you to right-click to insert it into a furnace. Most of them are a straight trade-off rather than a pure upgrade.^[9][10]

• Augment: Speed halves the cooktime for all recipes, but uses up twice the amount of fuel.^[10]
• Augment: Fuel Efficiency makes fuel heat the furnace twice as much, at the cost of slowing the cooktime by 25% for all recipes.^[10]
• Augment: Factory converts the furnace into a factory and makes it use power for heat instead of fuel.^[10]
• Augment: Generator makes the furnace's heat generate power, but the furnace can no longer smelt items.^[10]
• Augment: Blasting restricts the furnace to blasting recipes only, and Augment: Smoking restricts it to smoking recipes only.^[10]

There's also a redstone augment with several modes, swapped by right-clicking in the air. Redstone Control mode stops the furnace smelting while it has a redstone signal, Redstone Inverse Control mode only smelts while it has one, Comparator mode makes the furnace act as an internal comparator and output that signal to all sides, and Comparator Subtraction mode does the same but lets you subtract a signal strength configured in the furnace GUI.^[10]

An experience augment handles the XP a furnace builds up. Its two modes are switched by sneaking and right-clicking in the air: either the experience from smelting is ejected to nearby fluid tanks, or it's given to the player who placed the furnace.^[10]

Augment: SpeedMod recipe

Crafting Shaped

Crafting Shaped

any stone	any redstone dust	any stone
Paper	Sugar	Paper
any stone	any redstone dust	any stone

Recipe id: ironfurnaces:augments/augment_speed

Augment: Fuel EfficiencyMod recipe

Crafting Shaped

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any stone	any redstone dust	any stone
Paper	Coal	Paper
any stone	any redstone dust	any stone

Recipe id: ironfurnaces:augments/augment_fuel

Augment: FactoryMod recipe

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any stone	any redstone dust	any stone
Paper	Piston	Paper
any stone	any redstone dust	any stone

Recipe id: ironfurnaces:augments/augment_factory

Augment: GeneratorMod recipe

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any stone	any redstone dust	any stone
Paper	Repeater	Paper
any stone	any redstone dust	any stone

Recipe id: ironfurnaces:augments/augment_generator

Automation and side configuration

The furnace GUI adds configurable sides for item transfer, which is what lets you pipe in ore from one face and pull ingots out of another without hoppers fighting each other.^[10]

Furnace Settings Linker is crafted from a furnace and paper. Its name suggests it's for carrying furnace settings between blocks, but nothing in the sources spells out exactly how it's used.^[9]

Unverified The exact behaviour of the Furnace Settings Linker (what it copies and how you apply it) is not confirmed by the available sources.

Wireless heat

Instead of hauling coal around, you can run your furnaces off a power grid with the wireless heat pair. Wireless Heat Transmitter is the block: you feed it Forge Energy and it powers every Wireless Heat Receiver bound to it. You bind a receiver by placing it inside the transmitter, and until that's done the transmitter reports that it hasn't been bound to an energy source yet.^[10]

1. Craft and place the Wireless Heat Transmitter and supply it with Forge Energy.^[9][10]
2. Put a Wireless Heat Receiver into the transmitter to bind it.^[10]
3. Take the bound receiver and drop it into the fuel slot of the furnace you want to run.^[10]

Wireless Heat TransmitterMod recipe

Crafting Shaped

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any stone	Comparator	any stone
any stone	any redstone storage block	any stone
any stone	Furnace	any stone

Recipe id: ironfurnaces:heater

Wireless Heat ReceiverMod recipe

Crafting Shaped

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any stone	any redstone dust	any stone
any redstone dust	Comparator	any redstone dust
any stone	any redstone dust	any stone

Recipe id: ironfurnaces:item_heater

The Rainbow Furnace as a generator

The Rainbow Furnace is the mod's endgame toy and its power generation has strict rules. For it to generate, one furnace of each tier must be an active generator and must not have a full buffer. Its output goes to any side configured as output and is never added to its own internal buffer, and you can only have one Rainbow Generator at a time.^[10]

In other words, the Rainbow Furnace isn't a standalone power plant: it's the capstone on a whole wall of generator-augmented furnaces, and its RF/tick figure assumes all of those are running.^[10]

Cosmetic extras

Two joke items let you redecorate your furnaces. Furnace Spooka-lator is right-clicked on a furnace to spookalize it, and sneaking and right-clicking cleanses any spookalizations. Furnace Wrapping Papers wraps a furnace as a gift, and sneaking and right-clicking opens the gift.^[10]

Mod compatibility

Iron Furnaces is built to be compatible with most mods and has explicit compatibility with JEI and Project MMO, so its recipes and augment categories show up properly in your recipe viewer.^[1]

Same as in the All the Mods 10 0.51 guide

Iron Furnaces is a straight ladder: you start from a vanilla furnace, wrap it in a better metal, and keep feeding the result back into the next recipe. The pack's quest chapter follows that ladder almost exactly, so if you just work the quests top to bottom you'll end up with every tier in order.^[4][11]

The chain shows up in the main questline too. One early quest accepts an Iron Furnace, a Copper Furnace, or either of the stone upgrade items, and the quest right after it accepts any one of the six augments, so a single cheap furnace and one augment gets you both.^[3]

Tier 1: copper and iron

Both entry furnaces branch straight off a vanilla furnace, and the quest chapter opens with one quest for each: a quest in "?" for the Iron Furnace and a quest in "?" for the Copper Furnace. You don't have to pick one, copper can be converted into iron later.^[4][11]

Copper FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any copper ingot	any copper ingot	any copper ingot
any copper ingot	Furnace	any copper ingot
any copper ingot	any copper ingot	any copper ingot

Recipe id: ironfurnaces:furnaces/copper_furnace

Iron FurnaceMod recipe

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any iron ingot	any iron ingot	any iron ingot
any iron ingot	Furnace	any iron ingot
any iron ingot	any iron ingot	any iron ingot

Recipe id: ironfurnaces:furnaces/iron_furnace

Iron FurnaceMod recipe

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any iron ingot	any iron ingot	any iron ingot
any colorless glass blocks	any copper furnace	any colorless glass blocks
any iron ingot	any iron ingot	any iron ingot

Recipe id: ironfurnaces:furnaces/iron_furnace2

The copper route to an Iron Furnace.

Tier 2: silver and gold

a quest in "?" wants a Silver Furnace and unlocks after both entry furnaces, while a quest in "?" wants a Golden Furnace and sits behind the iron and silver quests. There are two recipes for each, so whichever of copper, iron or silver you have spare will get you up a step.^[4][11]

Silver FurnaceMod recipe

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Crafting Shaped

any silver ingot	any colorless glass blocks	any silver ingot
any colorless glass blocks	any iron furnace	any colorless glass blocks
any silver ingot	any colorless glass blocks	any silver ingot

Recipe id: ironfurnaces:furnaces/silver_furnace

Silver FurnaceMod recipe

Crafting Shaped

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any silver ingot	any silver ingot	any silver ingot
any silver ingot	any copper furnace	any silver ingot
any silver ingot	any silver ingot	any silver ingot

Recipe id: ironfurnaces:furnaces/silver_furnace2

Golden FurnaceMod recipe

Crafting Shaped

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any gold ingot	any gold ingot	any gold ingot
any gold ingot	any iron furnace	any gold ingot
any gold ingot	any gold storage block	any gold ingot

Recipe id: ironfurnaces:furnaces/gold_furnace

Golden FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any colorless glass blocks	any colorless glass blocks	any colorless glass blocks
any colorless glass blocks	any silver furnace	any colorless glass blocks
any colorless glass blocks	any gold storage block	any colorless glass blocks

Recipe id: ironfurnaces:furnaces/gold_furnace2

Tier 3: diamond, then the split

Gold feeds into the Diamond Furnace in a quest in "?", and from there the tree splits in two: a quest in "?" for the Emerald Furnace and a quest in "?" for the Crystal Furnace. Both branches feed back together at obsidian, and you'll want both furnaces eventually anyway.^[4][11]

Diamond FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any diamond gem	any diamond gem	any diamond gem
any colorless glass blocks	any gold furnace	any colorless glass blocks
any diamond gem	any diamond gem	any diamond gem

Recipe id: ironfurnaces:furnaces/diamond_furnace

Emerald FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any emerald gem	any emerald gem	any emerald gem
any emerald gem	any diamond furnace	any emerald gem
any emerald gem	any emerald gem	any emerald gem

Recipe id: ironfurnaces:furnaces/emerald_furnace

Crystal FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any colorless glass blocks	any colorless glass blocks	any colorless glass blocks
any colorless glass blocks	any diamond furnace	any colorless glass blocks
any colorless glass blocks	Ender Eye	any colorless glass blocks

Recipe id: ironfurnaces:furnaces/crystal_furnace

Tier 4: obsidian and netherite

a quest in "?" asks for an Obsidian Furnace and only opens once you've done both the emerald and crystal quests, though the furnace itself can be crafted from either one. a quest in "?" then asks for the Netherite Furnace.^[4][11]

Obsidian FurnaceMod recipe

Crafting Shaped

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any obsidian	any blaze rod	any obsidian
any blaze rod	any emerald furnace	any blaze rod
any obsidian	any blaze rod	any obsidian

Recipe id: ironfurnaces:furnaces/obsidian_furnace

Obsidian FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any obsidian	any blaze rod	any obsidian
any blaze rod	any crystal furnace	any blaze rod
any obsidian	any blaze rod	any obsidian

Recipe id: ironfurnaces:furnaces/obsidian_furnace2

Netherite FurnaceChanged by the pack

Crafting Shaped

Crafting Shaped

any netherite ingot	Magma Cream	any netherite ingot
Magma Cream	any obsidian furnace	Magma Cream
any netherite ingot	any soul fire base block	any netherite ingot

Recipe id: ironfurnaces:furnaces/netherite_furnace

Endgame: the Rainbow Furnace

The top of the quest chain is the Rainbow Furnace. You need a Rainbow Core from a quest in "?", which consumes a finished Netherite Furnace, plus Rainbow Plating, and a quest in "?" asks for 8 of it. Plating is made from finished furnaces of the earlier tiers, so start building spares well before you get here.^[4][11]

Rainbow CoreMod recipe

Crafting Shaped

Crafting Shaped

Red Stained Glass	Orange Stained Glass	Yellow Stained Glass
Netherite Furnace	Green Stained Glass	Netherite Furnace
Blue Stained Glass	Purple Stained Glass	Magenta Stained Glass

Recipe id: ironfurnaces:rainbow_core

8× Rainbow PlatingMod recipe

Crafting Shapeless

• Iron Furnace
• Golden Furnace
• Diamond Furnace
• Emerald Furnace
• Obsidian Furnace
• Crystal Furnace
• Copper Furnace
• Silver Furnace

Recipe id: ironfurnaces:rainbow_plating

Rainbow FurnaceMod recipe

Crafting Shaped

Crafting Shaped

Rainbow Plating	Rainbow Plating	Rainbow Plating
Rainbow Plating	Rainbow Core	Rainbow Plating
Rainbow Plating	Rainbow Plating	Rainbow Plating

Recipe id: ironfurnaces:furnaces/million_furnace

After a quest in "?" hands you the Rainbow Furnace, a quest in "?" follows up with Rainbow Coal, and a quest in "?" is the collection capstone: the Rainbow Furnace plus one of every tier from copper through obsidian.^[4]

Past netherite: the Allthemodium tiers

Three more tiers exist beyond netherite: the Allthemodium Furnace, Vibranium Furnace and Unobtainium Furnace, each built from the tier below it. They don't appear anywhere in the quest chapter, so they're pure crafting-tree progression you pick up alongside your AllTheModium gear.^[4][11]

Allthemodium FurnaceMod recipe

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any allthemodium storage block	any allthemodium ingot	any allthemodium storage block
any allthemodium ingot	any netherite furnace	any allthemodium ingot
any allthemodium storage block	any allthemodium ingot	any allthemodium storage block

Recipe id: ironfurnaces:furnaces/allthemodium_furnace

Vibranium FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any vibranium storage block	any vibranium ingot	any vibranium storage block
any vibranium ingot	any allthemodium furnace	any vibranium ingot
any vibranium storage block	any vibranium ingot	any vibranium storage block

Recipe id: ironfurnaces:furnaces/vibranium_furnace

Unobtainium FurnaceMod recipe

Crafting Shaped

Crafting Shaped

any unobtainium storage block	any unobtainium ingot	any unobtainium storage block
any unobtainium ingot	any vibranium furnace	any unobtainium ingot
any unobtainium storage block	any unobtainium ingot	any unobtainium storage block

Recipe id: ironfurnaces:furnaces/unobtainium_furnace

Upgrade items

Nearly every jump on the ladder also has a matching upgrade item, from Stone to Copper Furnace Upgrade and Stone to Iron Furnace Upgrade at the bottom right through to Vibranium to Unobtainium Furnace Upgrade. Where a tier has two crafting routes, there are two upgrades to match, for example Iron to Gold Furnace Upgrade from iron and Silver to Gold Furnace Upgrade from silver.^[11]

Unverified How you apply an upgrade item to an existing furnace, and whether it preserves that furnace's contents or settings, isn't covered by the pack files used for this guide, test it on a spare furnace first.

Same as in the All the Mods 10 0.51 guide

Iron Furnaces connects to the rest of the pack through its top-tier furnace. The Rainbow Furnace is the one item from this mod that shows up in other mods' crafting, and both recipes that use it were added by the pack itself.^[11]

Improbable Probability Device

The Improbable Probability Device needs a Rainbow Furnace, plus items from several other mods. Those include AE2, Mega Cells, Mekanism, Modern Industrialization, PneumaticCraft and Iron's Spells 'n Spellbooks. The recipe below shows the exact layout.^[11]

Improbable Probability DeviceAdded by the pack

Crafting Shaped

Crafting Shaped

Antimatter Pellet	Singularity	Antimatter Pellet
256M Portable Item Cell	Lightning Upgrade Orb	Blastproof Casing
Rainbow Furnace	Aerial Interface	Rainbow Furnace

Recipe id: allthemods:allthetweaks/improbable_probability_device

Philosopher's Fuel

Philosopher's Fuel also takes a Rainbow Furnace. The other ingredients come from Extreme Reactors, Generator Galore, Mystical Agriculture and Mystical Agradditions, plus vanilla bedrock. It's a pack-added recipe too, so you won't find it in the mods' own defaults.^[11]

Philosopher's FuelAdded by the pack

Crafting Shaped

Crafting Shaped

Ender Generator	Rainbow Furnace	Insanite Block
Bedrock	Insanium Coal Block	Bedrock
Awakened Supremium Ingot Block	Bedrock	Bedrock

Recipe id: allthemods:allthetweaks/philosophers_fuel

Quests and general compatibility

The Iron Furnaces quests in the pack only ask for this mod's own items. That means the furnace tiers, the heat transmitter and receiver, and the augments. None of them asks for items from two mods at once, so the recipes above are the real cross-mod links.^[3][4]

The mod's project page says it should be compatible with most mods, and it names explicit compatibility with JEI and Project MMO. The page doesn't say how that works in this pack, so treat it as a general note.^[1]

Same as in the All the Mods 10 0.51 guide

Iron Furnaces shows up in two quest chapters in this pack: the main questline (part 1) and the generators chapter. None of these quests have titles, so I'll point to them by their quest links and describe what each one asks for.^[3][4]

Main questline, part 1

There are only two Iron Furnaces quests here, and they come in order. The first, a quest in "?", accepts any one of these: an Iron Furnace, a Copper Furnace, a Stone to Iron Furnace Upgrade or a Stone to Copper Furnace Upgrade. It unlocks after an earlier main-line quest that isn't part of this mod's list.^[3]

Next comes a quest in "?", which accepts any one augment: Augment: Blasting, Augment: Smoking, Augment: Factory, Augment: Generator, Augment: Speed or Augment: Fuel Efficiency.^[3]

Generators chapter: the furnace tiers

This chapter is where most of the mod's quests live. It starts with two quests that both unlock after a quest outside this mod's list: a quest in "?" for the Iron Furnace and a quest in "?" for the Copper Furnace.^[4]

Once you've done both, a handful of quests open up. You don't have to do them in any set order:^[4]

• a quest in "?" asks for the Silver Furnace.^[4]
• a quest in "?" lists the Wireless Heat Transmitter and the Wireless Heat Receiver.^[4]
• a quest in "?" asks for the Furnace Settings Linker.^[4]
• a quest in "?" asks for the Furnace Wrapping Papers.^[4]
• a quest in "?" asks for the Furnace Spooka-lator.^[4]

The furnace tiers then form a chain. a quest in "?" (the Golden Furnace) needs the iron furnace and silver furnace quests. a quest in "?" (the Diamond Furnace) follows the gold quest. After the diamond quest, you can do a quest in "?" for the Crystal Furnace and a quest in "?" for the Emerald Furnace.^[4]

Both of those lead to a quest in "?" for the Obsidian Furnace. That is followed by a quest in "?" for the Netherite Furnace, and then a quest in "?" for the Rainbow Core.^[4]

Generators chapter: the Rainbow finale

a quest in "?" asks for 8 Rainbow Plating. It requires the gold, diamond, crystal, emerald, obsidian, silver, iron and copper furnace quests.^[4]

With the plating quest and the Rainbow Core quest done, a quest in "?" asks for the Rainbow Furnace. After that, a quest in "?" asks for Rainbow Coal.^[4]

There's also a collection quest, a quest in "?", that lists the Rainbow, copper, iron, silver, gold, diamond, emerald, crystal and obsidian furnaces. It opens once all the furnace-tier quests and the Rainbow Furnace quest are done.^[4]

Generators chapter: augments

The augments sit in their own branch, separate from the furnace chain. All five quests unlock after the same earlier quest, which isn't one of this mod's quests, so you can take them in any order:^[4]

• a quest in "?" asks for the Augment: Speed.^[4]
• a quest in "?" asks for the Augment: Fuel Efficiency.^[4]
• a quest in "?" asks for the Augment: Blasting.^[4]
• a quest in "?" asks for the Augment: Smoking.^[4]
• a quest in "?" asks for the Augment: Factory.^[4]
• a quest in "?" asks for the Augment: Generator.^[4]

Unverified The sources don't say what these quests reward, and they don't describe the quests that unlock the chapter's entry points, so check those in-game.

All the Mods 10 0.50 ships Iron Furnaces 4.2.5. The mod has been in the pack since 0.32 or earlier, so you may already have been using it in an older pack version.^[12]

Iron Furnaces 4.2.5

• Fixed factory furnaces smelting everything instantly.^[13]
• The Furnace Settings Linker now copies over the horizontal facing of the furnace.^[13]

Unverified No pack changelog entries for this mod were available, so changes between pack releases, and anything in Iron Furnaces versions before 4.2.5, are not covered here.