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