Jumbo Furnace in FTB StoneBlock 4
FTB StoneBlock 4 1.23.0 ships version 5.0.0.9 · First seen in 1.0.0
Jumbo Furnace is a mod in FTB StoneBlock 4 1.23.0, where it is version 5.0.0.9. Adds a multiblock furnace that can smelt multiple items at once (Summary from the mod's Modrinth page.)
Jumbo Furnace guide for FTB StoneBlock 4
Last verified for FTB StoneBlock 4 v1.23.0 on Oct 14, 2026 · text last changed Oct 14, 2026
Also applies to:FTB Skies 2 1.0.1 to 1.24.0FTB Skies 2: Aero 1.0.3 to 1.10.0
- Sections
- 6
- Recipes shown
- 1
- Items named
- 1
- Quests covered
- 4
4 sections are written for this pack; 2 are shared from another pack's guide.
Every recipe and number here was checked against FTB StoneBlock 4 1.23.0, read from the running game on Oct 13, 2026.
What is Jumbo Furnace?
2 parts
Jumbo Furnace turns a 3x3x3 build of ordinary furnaces into one big furnace that can process multiple recipes at the same time. This pack ships version 5.0.0.9, and it has been in the pack since 1.0.0 or earlier.[1][2]
How it works in this pack
The pack's quest book explains the basics: you build a 3x3x3 of Furnaces to create the Jumbo Furnace. You can upgrade it by putting more Jumbo Furnaces in the bottom-right slot, up to 64. Each one you add represents the number of items it can smelt at once.[2]
Where it sits in the quest book
The mod's quest is "Bigger & Better" quest, titled "Bigger & Better". It lives in the "Useful Items & Tips" chapter, which is part of the "Forgotten Knowledge" group and is chapter 18 of 22 in the book. That chapter holds 24 quests, mostly short tips on handy items and building helpers.[2]
Other quests in the same chapter include "Simple Magnets" quest, "Item Collectors" quest and "Building Gadgets" quest.[2]
This quest does not ask you to hand in an item. Its task is an advancement, so you complete it by building the Jumbo Furnace.[2]
How do you get started with Jumbo Furnace?
3 parts
The Jumbo Furnace is a big multiblock that smelts several recipes at once. Your first goal is simple: build one, then upgrade it. Here's the order to go in.[2][3]
Step 1: Build the Jumbo Furnace
Place 27 furnaces in a 3x3x3 cube and they become a Jumbo Furnace. The pack's quest book has this as the quest "Bigger & Better" quest in the "Useful Items & Tips" chapter, which sits in the "Forgotten Knowledge" group (chapter 18 of 22).[2][3]
Jumbo Smelting (jumbofurnace)
- 27× any furnace player workstations
Recipe id: jumbofurnace:jumbo_furnace
This is the in-pack recipe for the Jumbo Furnace item. It is a Jumbo Smelting recipe that takes 27 furnaces.
The mod's own advancement text says you can also get the item by smelting 27 furnaces in a Jumbo Furnace you already have.[3]
Step 2: Upgrade it
A basic Jumbo Furnace already processes multiple recipes at the same time. To push that further, put more Jumbo Furnace items in the bottom-right slot, up to 64. Each one adds to the number of items it can smelt at once.[2][3]
- The mod has an advancement for upgrading a Jumbo Furnace with another Jumbo Furnace.[3]
- Another advancement is for fully upgrading one with a full stack of 64 Jumbo Furnaces.[3]
Step 3: Dismantling it
In this pack the [[config:config/jumbofurnace-server.toml#Construction Settings.shearable]] option is set to true. That means you can cleanly dismantle a Jumbo Furnace with shears.[5]
How does Jumbo Furnace work?
3 parts
Same as in the FTB Skies 2 1.22.0 guide
The Jumbo Furnace is a multiblock smelter. You build it from regular furnaces instead of crafting one block. Here is everything the sources confirm about how it works in this pack.[6]
Building it
Place 27 furnaces in a 3x3x3 cube and they assemble into a Jumbo Furnace. The mod has an advancement for exactly this, so you'll know when it worked.[6]
You can also get the Jumbo Furnace as an item. The mod's advancement text says you can do this by smelting 27 furnaces in a Jumbo Furnace. The pack's recipe uses the mod's own jumbo smelting recipe type, and it accepts any block from the furnace workstation tag as the input.[6][7]
Jumbo Smelting (jumbofurnace)
- 27× any furnace player workstations
Recipe id: jumbofurnace:jumbo_furnace
Upgrading
A Jumbo Furnace has an upgrade slot. Put Jumbo Furnace items in it and the furnace can smelt more recipes per cooking cycle. The mod's tooltip describes the upgrade this way.[6]
The advancements show how far the upgrades go. A single Jumbo Furnace item is enough to upgrade your furnace. A full upgrade takes a full stack of 64 Jumbo Furnaces.[6]
Taking it apart
In this pack, [[config:config/jumbofurnace-server.toml#Construction Settings.shearable]] is set to true. That means you can dismantle a Jumbo Furnace cleanly with shears.[8]
Unverified The sources don't cover fuel use, smelting speed, automation with hoppers or pipes, or what the upgrade slot accepts beyond Jumbo Furnace items. Check these in-game before you build an automated setup around the furnace.
How do you progress through Jumbo Furnace?
3 parts
The Jumbo Furnace is a short progression in this pack: you build it once, then upgrade it. The pack's quest book covers it in a single quest, "Bigger & Better" quest.[2]
Where the quest book puts it
The quest is called Bigger & Better. It sits in the "Useful Items & Tips" chapter, which is chapter 18 of 22 in the book, in the "Forgotten Knowledge" group. That chapter holds 24 quests. This quest is completed by an advancement rather than by handing in an item.[2]
Step 1: build the Jumbo Furnace
The quest tells you to build a 3x3x3 of Furnaces to create the Jumbo Furnace. Once you have it, it can process multiple recipes at the same time.[2]
Jumbo Smelting (jumbofurnace)
- 27× any furnace player workstations
Recipe id: jumbofurnace:jumbo_furnace
The in-pack recipe. The recipe dump lists it as a mod recipe, so it is not marked as changed by the pack.
Step 2: upgrade it
You upgrade the Jumbo Furnace by putting more Jumbo Furnaces in its bottom-right slot, up to 64. Each one you add represents the number of items it can smelt at once.[2]
Which FTB StoneBlock 4 quests use Jumbo Furnace?
1 part
The Jumbo Furnace has just one quest in the pack, and it sits in the "Useful Items & Tips" chapter. That chapter is part of the "Forgotten Knowledge" group and is chapter 18 of 22 in the quest book. It's a grab bag of 24 quests, each pointing you at a handy item or mod.[2]
Bigger & Better
The quest is "Bigger & Better" quest. It asks you to build a 3x3x3 of Furnaces to create the Jumbo Furnace. The quest is checked with an advancement rather than by handing in an item.[2]
The quest text says the Jumbo Furnace can process multiple recipes at the same time. You can upgrade it by putting more Jumbo Furnaces in its bottom-right slot, up to 64. Each one you add represents the number of items it can smelt at once.[2]
Which Jumbo Furnace config options matter?
Same as in the FTB Skies 2 1.22.0 guide
The only Jumbo Furnace setting the pack's files show is [[config:config/jumbofurnace-server.toml#Construction Settings.shearable]], and it's a handy one. In this pack it's set to true, which means you can cleanly dismantle a jumbo furnace with shears instead of tearing it apart.[8]
Unverified The pack file doesn't say what the mod's default for this option is, so I can't tell you whether the pack changed it. No other Jumbo Furnace config values are available here, so I'm leaving them out rather than guessing.
Sources
- FTB StoneBlock 4 1.21.0 mod list · pack file
- FTB StoneBlock 4 1.21.0 quests: "Useful Items & Tips" · pack file
- jumbofurnace names, screen text and descriptions (English lang file) · official mod data
- FTB StoneBlock 4 1.21.0 recipe dump: recipes making Jumbo Furnace items · pack recipe dump
- FTB StoneBlock 4 1.21.0 config: config/jumbofurnace-server.toml · pack file
- jumbofurnace tooltips and descriptions (English lang file) · official mod data
- FTB Skies 2 1.22.0 recipe dump: recipes making Jumbo Furnace items · pack recipe dump
- FTB Skies 2 1.22.0 config: config/jumbofurnace-server.toml · pack file
Where this guide comes from
Written from what FTB StoneBlock 4 itself ships: its files and recipes, the in-game guidebooks and the mods' own pages. Every statement links to the source it came from, and the numbers are checked against the pack before publishing.
Guide last verified Oct 14, 2026.
Guides for other versions: 1.1.1 to 1.6.0
Report wrong info
Version in each release
48 releases, first in 1.0.0
| FTB StoneBlock 4 | Version | Jar | Where it came from |
|---|---|---|---|
| 1.23.0 Oct 12, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.22.0 Sep 22, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.21.0 Sep 9, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.20.1 Sep 1, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.20.0 Aug 26, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.19.1 Aug 12, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.19.0 Aug 11, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.18.0 Aug 9, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.17.2 Jul 29, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.17.1 Jul 28, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.17.0 Jul 24, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.16.0 Jul 2, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.15.3 Jun 17, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.15.2 Jun 16, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.15.0 Jun 13, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.14.2 Jun 3, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.14.1 May 31, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.14.0 May 27, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.13.1 May 12, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.13.0 May 12, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.12.0 May 7, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.11.1 Apr 24, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.11.0 Apr 16, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.10.0 Apr 8, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.9.6 Apr 3, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.9.5 Apr 1, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.9.4 Mar 25, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.9.3 Mar 23, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.9.1 Mar 19, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.9.0 Mar 17, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.8.1 Mar 11, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.8.0 Feb 10, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.7.3 Feb 3, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.7.2 Feb 3, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.7.0 Jan 30, 2026 | 5.0.0.9 | jumbofurnace-5.0.0.9.jar | From the published release |
| 1.6.0 Jan 7, 2026 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.5.0 Dec 16, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.4.0 Dec 9, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.3.0 Dec 4, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.2.1 Nov 26, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.2.0 Nov 25, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.1.2 Nov 18, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.1.1 Nov 17, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.0.8 Nov 6, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.0.7 Nov 4, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.0.3 Nov 1, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.0.1 Oct 30, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
| 1.0.0 Oct 29, 2025 | 5.0.0.8 | jumbofurnace-1.21.1-5.0.0.8.jar | From the published release |
"From pack files" means the list came from the pack's own files; "from the published release" means ForgeBase read the jars of the release itself.
Items and blocks
2 items from the 1.23.0 recipe dump.
Config options (how FTB StoneBlock 4 sets them)
1 settings this pack ships for the mod. We don't have the mod's own defaults to compare them against yet.
Show settings
| Setting | FTB StoneBlock 4 value |
|---|---|
Construction Settings.shearable Shearable: Allow jumbo furnaces to be cleanly dismantled with shears config/jumbofurnace-server.toml | true |
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