The Cold Wave Is Coming, and We Can Only Keep Warm with a Furnace

[No System - Survival - Road Trip]

At first, people thought it was just abnormal weather, an ordinary cold snap, a drop in temperature. Then the water and electricity went out, and the temperature kept falling. To stay warm, humanity was forced to migrate to places rich in coal and oil. There, engineers and workers built enormous furnaces that piped heat from house to house like blood vessels. But how long could this last? And where would the next home be?