Shaft Furnace

Description

These large vertical furnaces were used to smelt iron ore with charcoal and forced air. Such early bloomeries marked a significant step toward producing workable wrought iron on a more reliable scale. Their metal output greatly aided the rapid equipment of armies.

Core data

ID

791

Alias

ID_STRUC_SHAFT_FURNACE

$Alias

$ID_STRUC_SHAFT_FURNACE

Tier

2

Job

Infrastructure ($POP_JOB_INFRA)

SubJob

Infrastructure ($JOB_KIND_INFRA)

Christian available

Yes

Muslim available

Yes

TN / Tribe available

No

DisplayOrder

0

Style color

$Col_Salmon1

Design and constraints

Notable points

IRON-, Metal+(4), Coal Bonus > Metal3

DLC notes

-

Constraints

Shaft Furnace

Minimum population

8

Region max buildings

1

Minimum piety

-

Minimum stewardship

-

Required area

-

Required terrain

-

Forbidden terrain

-

Type and economy

Tier

2

Is depot

No

Is fort

No

Is city structure

No

Is harbor

No

Authority gain

0

Legacy gain / turn

0

Slot usage cost

1

Infrastructure cost

210

Infrastructure upkeep

1

Money upkeep

7

Resources

Field	Value
Input_Resource	Iron Ore
BonusResource[0]	Coal

Outputs

Output field	Value
MBP_Output	9
Metal_Output	5
Income_Output	4

Bonus outputs

Bonus field	Value
Bonus_Infra	2
Bonus_Metal	4

Building tree

Requires

Craftsmen District

Upgrades to

Blast Furnace

Replaces

Bloomery, Early Furnace

Forbidden with

None

Used by (reverse dependencies)

None

Military / garrison links

Garrison category

0

Units in this garrison category

No units mapped for this garrison category

Units unlocked by this structure

No units directly requiring this structure

WallValue

0

SiegeResist

0

CounterRaid

0

FT_Level

0

FT_MinLevel

0

FT_MaxLevel

100

FT_LevelChange

0

Transverse outputs (from linked modifiers)

No transverse outputs decoded from linked modifiers.

Manual references

Source: FOG_Kingdoms_Manual_Printer-Friendly.pdf

No direct manual mention found for this exact structure name.

Modifiers

Name	Alias	Description	Effects (decoded)
IDS_MOD_Name_Structure_Difficult_Work	ID_MOD_STRUCTURE_DIFFICULT_WORK	Difficult Work	Health Penalty: 4%
IDS_MOD_Name_Structure_Shaft_Furnace	ID_MOD_STRUCTURE_SHAFT_FURNACE	Increased production	Recruit Metal Reduction: 10% Freemengrow Bonus: 5%