In Frostpunk 2, the survivors are facing a new challenge as their coal supply is running low. To keep their cities warm and functioning, they must find a different way to stay heated. This means switching to oil, another fossil fuel, and without enough of that, survival turns out to be almost impossible in such an unforgiving climate.
If you’re playing Frostpunk 2 and you’re struggling with limited oil resources, Coal Liquefaction might be your solution. This technology lets you turn the leftover coal into liquid fuel so that you can use them to power more generators, kind of a nice way of maximizing usage of your coal supplies.
How to get Coal Liquefaction
Coal Liquefaction can convert coal into oil. You can build them after researching a specific upgrade and there are two types of this building in game, one for progress-oriented cities and the other one is suitable for adaptable cities. And they both require lots of resources to research, so you have to choose the right version to be used in your city.
How to use Coal Liquefaction
| Building | Build Cost | Upkeep | Effects |
| Carrion Coal Liquefaction | 200 Heatstamps100 Prefabs1 Core | 400 Workforce20 Materials | Converts 60 Coal into 80 Oil.Slightly increases the city’s Disease. |
| Pressurized Coal Liquefaction | 200 Heatstamps100 Prefabs1 Core | 300 Workforce40 Materials | Converts 100 Coal into 80 Oil.Slightly increases the city’s Squalor. |
Coal Liquefaction is of two types, and they have their own strengths and weaknesses. The Pressurized version uses fewer workers but requires more coal and materials to produce the same amount of oil. The Carrion version, on the other hand, is more efficient with resources but needs more workers. You will also want to decide between the two, based on the fact that whether your city is better at handling disease or squalor.
Conclusion
Coal Liquefaction is very expensive to build, but they are definitely worth it. Even if you’ve already upgraded your generator, it’s still better to use coal to make oil. Oil produces twice as much heat as coal, so it’s more efficient in the long run. Just make sure you have enough workers to keep your liquefaction running.
Coal Liquefaction is very important if you have upgraded your generator to Oil Pumps. This upgrade makes them so much more efficient with oil, producing so much heat. But it can only use oil as a fuel. This makes coal useless, a Liquefactor needs to be used to liquefy it, to turn it into oil so that you may use it completely.
If you have a lot of workers and materials, then you can build Charcoal facilities. These facilities turn wood into coal, and you can then use that coal to make oil. It’s a good way to use your resources efficiently, especially if you have a lot of wood.
