Whiteout Survival Furnace Upgrade Requirements (2026)

The Furnace is a crucial element in Whiteout Survival, serving as the city’s warmth source and enabling worker productivity.

📅 Last Updated: May 8, 2026

Upgrading the Furnace unlocks new features and building upgrades.

The Furnace has 30 upgrade levels, each requiring specific resources like coal, wood, meat (from level 10), and iron (from level 6).

Coal is needed from level 3 onwards, and both coal and iron are required from level 6.

The in-game Action Panel controls the Furnace, allowing for regular operation or Max Power mode, which consumes more coal.

Upgrading the Furnace increases its coal consumption per minute.

Furnace Upgrade Requirements

Level 1

• Requirements: N/A
• Resources: N/A
• Upgrade Time: N/A
• Max Power: 2,000
• Unlocks: Cookhouse, Shelter 1, Shelter 2, Sawmill

Level 2

• Requirements: Sawmill (Level 1)
• Resources: 180 Wood
• Upgrade Time: 6 seconds
• Max Power: 3,800
• Unlocks: Hunter’s Hut

Level 3

• Requirements: Shelter 1 (Level 2)
• Resources: 805 Wood
• Upgrade Time: 1 minute
• Max Power: 6,500
• Unlocks: Coal Mine

Level 4

• Requirements: Coal Mine (Level 3)
• Resources: 1,800 Wood, 360 Coal
• Upgrade Time: 3 minutes
• Max Power: 10,100
• Unlocks: Shelter 3, Clinic, Explorer’s Cabin, Hero Hall

Level 5

• Requirements: Hero Hall, Shelter 3 (Level 3)
• Resources: 7,600 Wood, 1,500 Coal
• Upgrade Time: 10 minutes
• Max Power: 15,500
• Unlocks: Shelter 4, Iron Mine

Level 6

• Requirements: Iron Mine (Level 5)
• Resources: 19,000 Wood, 3,800 Coal, 960 Iron
• Upgrade Time: 30 minutes
• Max Power: 23,600
• Unlocks: Shelter 5, Chief’s House

Level 7

• Requirements: Hunter’s Hut (Level 6)
• Resources: 69,000 Wood, 13,000 Coal, 3,400 Iron
• Upgrade Time: 1 hour
• Max Power: 35,300
• Unlocks: Shelter 6, Lighthouse, Infantry Camp, Barricade

Level 8

• Requirements: Infantry Camp (Level 7)
• Resources: 120,000 Wood, 25,000 Coal, 6,300 Iron
• Upgrade Time: 2 hours, 30 minutes
• Max Power: 47,000
• Unlocks: Embassy, Arena, Marksmen Camp, Infirmary

Level 9

• Requirements: Embassy (Level 8), Infirmary (Level 1)
• Resources: 260,000 Wood, 52,000 Coal, 13,000 Iron
• Upgrade Time: 4 hours, 30 minutes
• Max Power: 58,700
• Unlocks: Storehouse, Research Center, Lancer Camp

Level 10

• Requirements: Marksman Camp (Level 9), Research Center
• Resources: 460,000 Wood, 92,000 Coal, 23,000 Iron
• Upgrade Time: 6 hours
• Max Power: 75,700
• Unlocks: Shelter 7, Shelter 8, Command Center

Level 11

• Requirements: Embassy (Level 10), Lancer Camp (Level 10)
• Resources: 1,300,000 Wood, 260,000 Coal, 65,000 Iron, 1,300,000 Meat
• Upgrade Time: 7 hours, 30 minutes
• Max Power: 92,700
• Unlocks: Enlistment Office

Level 12

• Requirements: Embassy (Level 11), Command Center (Level 1)
• Resources: 1,600,000 Wood, 330,000 Coal, 84,000 Iron, 1,600,000 Meat
• Upgrade Time: 9 hours
• Max Power: 109,700
• Unlocks: None

Level 13

• Requirements: Embassy (Level 12), Infantry Camp (Level 12)
• Resources: 2,300,000 Wood, 470,000 Coal, 110,000 Iron, 2,300,000 Meat
• Upgrade Time: 11 hours
• Max Power: 138,400
• Unlocks: Drill Camp

Level 14

• Requirements: Embassy (Level 13), Marksman Camp (Level 13)
• Resources: 3,100,000 Wood, 630,000 Coal, 150,000 Iron, 3,100,000 Meat
• Upgrade Time: 14 hours
• Max Power: 167,100
• Unlocks: None

Level 15

• Requirements: Embassy (Level 14), Lancer Camp (Level 14)
• Resources: 4,600,000 Wood, 930,000 Coal, 230,000 Iron, 4,600,000 Meat
• Upgrade Time: 18 hours
• Max Power: 195,800
• Unlocks: Hero Gear

Level 16

• Requirements: Embassy (Level 15), Research Center (Level 15)
• Resources: 5,900,000 Wood, 1,100,000 Coal, 290,000 Iron, 5,900,000 Meat
• Upgrade Time: 1 day, 6 hours, 28 minutes
• Max Power: 236,200
• Unlocks: None

Level 17

• Requirements: Embassy (Level 16), Infantry Camp (Level 16)
• Resources: 9,300,000 Wood, 1,800,000 Coal, 480,000 Iron, 9,300,000 Meat
• Upgrade Time: 1 day, 12 hours, 34 minutes
• Max Power: 276,600
• Unlocks: None

Level 18

• Requirements: Embassy (Level 17), Marksman Camp (Level 17)
• Resources: 12,000,000 Wood, 2,500,000 Coal, 620,000 Iron, 12,000,000 Meat
• Upgrade Time: 1 day, 19 hours, 53 minutes
• Max Power: 317,000
• Unlocks: Beast Cage (Pets)

Level 19

• Requirements: Embassy (Level 18), Lancer Camp (Level 18)
• Resources: 15,000,000 Wood, 3,100,000 Coal, 780,000 Iron, 15,000,000 Meat
• Upgrade Time: 2 days, 17 hours, 50 minutes
• Max Power: 374,400
• Unlocks: None

Level 20

• Requirements: Embassy (Level 19), Research Center (Level 19)
• Resources: 21,000,000 Wood, 4,300,000 Coal, 1,000,000 Iron, 21,000,000 Meat
• Upgrade Time: 3 days, 10 hours, 18 minutes
• Max Power: 431,800
• Unlocks: Mastery Forging

Level 21

• Requirements: Embassy (Level 20), Infantry Camp (Level 20)
• Resources: 27,000,000 Wood, 5,400,000 Coal, 1,300,000 Iron, 27,000,000 Meat
• Upgrade Time: 4 days, 10 hours, 59 minutes
• Max Power: 489,200
• Unlocks: None

Level 22

• Requirements: Embassy (Level 21), Marksman Camp (Level 21)
• Resources: 36,000,000 Wood, 7,200,000 Coal, 1,800,000 Iron, 36,000,000 Meat
• Upgrade Time: 6 days, 16 hours, 29 minutes
• Max Power: 575,300
• Unlocks: Chief Gear

Level 23

• Requirements: Embassy (Level 22), Lancer Camp (Level 22)
• Resources: 44,000,000 Wood, 8,900,000 Coal, 2,200,000 Iron, 44,000,000 Meat
• Upgrade Time: 9 days, 8 hours, 40 minutes
• Max Power: 661,400
• Unlocks: None

Level 24

• Requirements: Embassy (Level 23), Research Center (Level 23)
• Resources: 60,000,000 Wood, 12,000,000 Coal, 3,000,000 Iron, 60,000,000 Meat
• Upgrade Time: 13 days, 2 hours, 33 minutes
• Max Power: 747,500
• Unlocks: None

Level 25

• Requirements: Embassy (Level 24), Infantry Camp (Level 24)
• Resources: 81,000,000 Wood, 16,000,000 Coal, 4,000,000 Iron, 81,000,000 Meat
• Upgrade Time: 18 days, 8 hours, 22 minutes
• Max Power: 833,600
• Unlocks: Chief Gear Charms

Level 26

• Requirements: Embassy (Level 25), Marksmen Camp (Level 25)
• Resources: 100,000,000 Wood, 21,000,000 Coal, 5,200,000 Iron, 100,000,000 Meat
• Upgrade Time: 21 days, 2 hours, 26 minutes
• Max Power: 960,100
• Unlocks: None

Level 27

• Requirements: Embassy (Level 26), Lancer Camp (Level 26)
• Resources: 140,000,000 Wood, 24,000,000 Coal, 7,400,000 Iron, 140,000,000 Meat
• Upgrade Time: 25 days, 7 hours, 43 minutes
• Max Power: 1,086,600
• Unlocks: None

Level 28

• Requirements: Embassy (Level 27), Research Center (Level 27)
• Resources: 190,000,000 Wood, 39,000,000 Coal, 9,900,000 Iron, 190,000,000 Meat
• Upgrade Time: 29 days, 2 hours, 52 minutes
• Max Power: 1,213,100
• Unlocks: None

Level 29

• Requirements: Embassy (Level 28), Infantry Camp (Level 28)
• Resources: 240,000,000 Wood, 49,000,000 Coal, 12,000,000 Iron, 240,000,000 Meat
• Upgrade Time: 33 days, 11 hours, 42 minutes
• Max Power: 1,339,600
• Unlocks: None

Level 30

• Requirements: Embassy (Level 29), Marksman Camp (Level 29)
• Resources: 300,000,000 Wood, 60,000,000 Coal, 15,000,000 Iron, 300,000,000 Meat
• Upgrade Time: 40 days, 4 hours, 27 minutes
• Max Power: 1,523,500
• Unlocks: Fire Crystal Upgrades

Whiteout Survival Related Posts

• Whiteout Survival Tips and Tricks
• Whiteout Survival Best Troop Ratios Guide
• Whiteout Survival: Upgrade or Train Troops
• Whiteout Survival Pet System Guide
• Whiteout Survival Furnace Upgrade Requirements
• Fire Crystals in Whiteout Survival
• Defend Yourself in Whiteout Survival

Update Log

• May 8, 2026: Full review — verified all information reflects current game state. Updated for May 2026.
• January 2026: New year refresh — updated all content for 2026.
• 2025: Original article published.

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This guide was last reviewed and updated on May 8, 2026. All information reflects the current state of Whiteout Survival Furnace Upgrade Requirements as of May 2026.

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