Whiteout Survival Furnace Upgrade Guide
In Whiteout Survival, upgrading the Furnace is very important. It’s what keeps the people of your city warm and also lets you unlock other upgrades and buildings later into the game. That’s why it’s very important to know when and how to upgrade the Furnace.
Thank you for reading this post, don't forget to subscribe!The Furnace does two main jobs that no other building can do. It makes heat that keeps your people warm. When it gets too cold, your people get sick and stop working. This means you stop getting resources and your city cannot grow.
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Furnace Upgrades
Your Furnace level also decides what buildings you can use:
- Level 2 unlocks Hunter’s Hut
- Level 3 unlocks Coal Mine
- Level 4 unlocks Shelter 3, Clinic, Explorer’s Cabin, and Hero Hall
- Level 7 unlocks Lighthouse, Infantry Camp, and Barricade
- Level 8 unlocks Embassy, Arena, and Marksman Camp
- Level 9 unlocks Research Center and Lancer Camp
- Level 18 unlocks Beast Cage for Pets
- Level 30 unlocks Fire Crystal Upgrades
What You Need to Upgrade the Furnace
Upgrading the Furnace needs different items as you go up in levels:
| Item | When You Need It | Notes |
| Wood | Level 1 | Needed for all levels |
| Coal | Level 3 | Not needed for first two levels |
| Iron | Level 6 | Needed from level 6 and up |
| Meat | Level 10 | Only needed for higher levels |
The first few upgrades take just a few minutes and need only a little wood. But when you get to higher levels, you will need a lot more of everything and it can take many days. Going from level 22 to level 23 takes over 9 days if you do not use any speed boosts.
You also need to build other buildings first before you can upgrade. You must build the Coal Mine before you can get to level 3. You must build the Iron Mine before you can get to level 6. Always make sure you build these helper buildings along with your Furnace.
How to Use Maximum Power Settings
You can turn your Furnace on or off using the Action Panel in the game. The Max Power setting uses more coal but keeps everything warm when it is very cold.
Many players try to save coal by turning down the Furnace at night. This is a bad idea. If the temperature drops fast, your people get sick and stop working. The coal you save is not worth it.
Always run your Furnace at max power. When your Furnace gets to higher levels, it will use more coal every minute, so keep your Coal Mine upgraded too.
The Best Way to Upgrade
Follow these tips to upgrade your Furnace the smart way:
Keep your resource buildings at level 20 or higher. Your Sawmill, Coal Mine, Iron Mine, and Hunter’s Hut make sure you have enough items.
Keep your Dormitories 1 or 2 levels behind your Furnace. If you have more people but not enough beds, new people will die.
Make the Embassy a top choice for upgrades. This lets your alliance friends help you build faster.
Upgrade your Military Camps with the Furnace. At Furnace level 26, you unlock strong Tier 9 troops.
Fire Crystal Upgrades After Level 30
When you reach Furnace level 30, you can keep going with Fire Crystal upgrades from FC1 to FC10. These need Fire Crystals, which you can get from Intel Missions, Arena shops, and events like Castle Battle.
Fire Crystal upgrades make your troops much stronger. These upgrades are very important for high level battles.
How to Upgrade Faster
Here are some ways to speed up your Furnace upgrades:
Use the extra construction queue to build two things at once. You can unlock it for a short time with gems or buy it forever from the shop.
Join an active alliance that puts points into building speed tools like Adaptive Tools.
Save your speed up items for big upgrades that take many days, not for quick ones.
The Furnace is the base of everything you do in Whiteout Survival. Make it your number one upgrade at all times. Keep a good balance of resources, keep helper buildings at the right levels, and plan ahead for Fire Crystal upgrades. With good planning, your Furnace will help your city go from weak to very strong.
