Furnace

The Furnace plays an important role in Whiteout Survival as the heart of the city. It has multiple important purposes in the game.

One of its main functions is to keep the entire city warm, which allows the workers to perform at their best. Upgrading the Furnace is beneficial, as it unlocks access to new features and upgrade levels for other buildings in the city.

The Furnace has a total of 30 levels, and each level upgrade needs a specific amount of resources, including coal, wood, meat, and iron. Notably, you won’t need to have meat until reaching level 10 for upgrading the Furnace.

Similarly, coal is unnecessary for the first two upgrades (until level 3), but from level 4 onwards, a certain amount of coal is required. Additionally, iron becomes necessary for Furnace upgrades starting at level 6. This means you’ll need both iron and coal from level 6 onwards to continue upgrading the Furnace.

You can easily control the Furnace in the game using the in-game Action Panel, allowing you to turn it On or Off as needed. When the city gets too cold, you also have the option to operate the Furnace at Max Power.

However, keep in mind that running the Furnace at Max Power will require a higher amount of coal compared to its regular operation. As you upgrade the Furnace to higher levels, the amount of coal required per minute by the Furnace will increase.

Furnace Upgrade/Build Requirements

Level	Requirements	Wood	Meat	Coal	Iron	Upgrade Time	Power	Max Hero Level	Unlocks
1	–	–	–	–	–	–	2000	–	Cookhouse, Shelter 1, Shelter 2, Sawmill, Hunters’ Hut
2	Sawmill Lvl. 1	180	–	–	–	6s	3800	–	–
3	Shelter 1 Lv. 2	805	–	–	–	1m	6,500	–	Coal Mine
4	Coal Mine Lv. 3	1.8k	–	360	–	3m	10,100	20	Shelter 3, Clinic, Explorer’s Cabin, Hero Hall
5	Hero Hall Lv. 1, Shelter 3 Lv. 3	7.6k	–	1.5k	–	10m	15,500	–	Shelter 4, Iron Mine, Growth Missions
6	Iron Mine Lv. 5	19k	–	3.8k	960	30m	23,600	–	Shelter 5, Chief’s House
7	Hunters’ Hut Lv. 6	69k	–	13k	3.4k	1h	35,300	–	Shelter 6, Lighthouse, Infantry Camp, Barricade, Daily Missions
8	Infantry Camp Lv. 7	120k	–	25k	6.3k	2h 30m	47,000	–	Embassy, Arena, Marksman Camp, Infirmary, Monument
9	Embassy Lv. 8, Infirmary Lv. 1	260k	–	52k	13k	4h 30m	58,700	–	Storehouse, Research Center, Lancer Camp, City Overview Side-Drawer Menu
10	Marksman Camp Lv. 9, Research Center Lv. 1	460k	–	92k	23k	6h	75,700	22	Shelter 7, Shelter 8, Command Center
11	Embassy Lv. 10, Lancer Camp Lv. 10	1.3M	1.3M	20k	65k	7h 30m	92,700	25	Enlistment Office
12	Embassy Lv. 11, Command Centre Lv. 1	1.6M	1.6M	330k	84k	9h	109,700	28	–
13	Embassy Lv. 12, Infantry Camp Lv. 12	2.3M	2.3M	470k	110k	11h	138,400	31	Drill Camp
14	Embassy Lv. 13, Marksman Camp Lv. 13	3.1M	3.1M	630k	150k	14h	167,100	34	–
15	Embassy Lv. 14, Lancer Camp Lv. 14	4.6M	4.6M	930k	230k	18h	195,800	37	Hero Gear
16	Embassy Lv. 15, Research Center Lv. 15	5.9M	5.9M	1.1M	290k	1d 6h 28m	236,200	40	–
17	Embassy Lv. 16, Infantry Camp Lv. 16	9.3M	9.3M	1.8M	480k	1d 12h 34m	276,600	43	–
18	Embassy Lv. 17, Marksman Camp Lv. 17	12M	12M	2.5M	620k	1d 19h 53m	317,000	46	–
19	Embassy Lv. 18, Lancer Camp Lv. 18	15M	15M	3.1M	780k	2d 17h 50m	374,400	49	–
20	Embassy Lv. 19, Research Center Lv. 19	21M	21M	4.3M	1M	3d 10h 18m	431,800	54	Mastery Forging
21	Embassy Lv. 20, Infantry Camp Lv. 20	27M	27M	5.4M	1.3M	4d 10h 59m	489,200	59	–
22	Embassy Lv. 21, Marksman Camp Lv. 21	36M	36M	7.2M	1.8M	6d 16h 29m	575,300	64	Chief Gear
23	Embassy Lv. 22, Lancer Camp Lv. 22	44M	44M	8.9M	2.2M	9d 8h 40m	661,400	69	–
24	Embassy Lv. 23, Research Center Lv. 23	60M	60M	12M	3M	13d 2h 33m	747,500	74	–
25	Embassy Lv. 24, Infantry Camp Lv. 24	81M	81M	16M	4M	18d 8h 22m	833,600	79	Chief Gear Charms
26	Embassy Lv. 25, Marksman Camp Lv. 25	100M	100M	21M	5.2M	21d 2h 26m	960,100	80 (max)	–
27	Embassy Lv. 26, Lancer Camp Lv. 26	140M	140M	24M	7.4M	25d 7h 43m	1,086,600	–	–
28	Embassy Lv. 27, Research Center Lv. 27	190M	190M	39M	9.9M	29d 2h 52m	1,213,100	–	–
29	Embassy Lv. 28, Infantry Camp Lv. 28	240M	240M	49M	12M	33d 11h 42m	1,339,600	–	–
30	Embassy Lv. 29, Marksman Camp Lv. 29	300M	300M	60M	15M	40d 4h 27m	1,523,500	–	Fire Crystal Upgrades

Furnace’s Unlocks

As you upgrade the Furnace to specific levels, exciting new buildings or features are unlocked in the game. Each upgrade brings the opportunity to discover and access something fresh.

Here is the list of those unlocks:

• When Furnace is upgraded to level 2, it unlocks Hunter’s Hut.
• When Furnace is upgraded to level 3, it unlocks Coal Mine.
• When Furnace is upgraded to level 4, it unlocks Shelter 3, Clinic, Explorer’s Cabin, and Hero Hall.
• When Furnace is upgraded to level 5, it unlocks Shelter 4 and Iron Mine.
• When Furnace is upgraded to level 6, it unlocks Shelter 5 and Chief’s House.
• When Furnace is upgraded to level 7, it unlocks Shelter 6, Lighthouse, Infantry Camp, and Barricade.
• When Furnace is upgraded to level 8, it unlocks Embassy, Arena, Monument, Marksman Camp, and Infirmary.
• When Furnace is upgraded to level 9, it unlocks Storehouse, Research Center, and Lancer Camp.
• When Furnace is upgraded to level 10, it unlocks Shelter 7, Shelter 8, and Command Center.
• When Furnace is upgraded to level 11, it unlocks Enlistment Office.
• When Furnace is upgraded to level 13, it unlocks Drill Camp.
• When Furnace is upgraded to level 15, it unlocks Hero Gear.
• When Furnace is upgraded to level 18, it unlock Beast Cage (Pets).
• When Furnace is upgraded to level 20, it unlocks Mastery Forging.
• When Furnace is upgraded to level 22, it unlocks Chief Gear.
• When Furnace is upgraded to level 25, it unlocks Chief Gear Charms.
• When Furnace is upgraded to level 30, it unlocks Fire Crystal Upgrades.