Fir firewood is a material in The Long Dark. It is a fuel source for a fire and also a material for crafting and repairing . Fir firewood has an estimated fire duration of 1 hour and 30 minutes. With 90 min/kg it has a worse burning time per weight than cedar firewood, which gives 120 min/kg. When foraging for wood using a hatchet, it can be foraged just as easily as cedar firewood and it provides 33% more burning time for the same amount of calories spent foraging wood. It can be obtained by foraging for wood outside of shelters.