| Species | Type | GJ/cord ↕ | MMBtu/cord | Relative heat | Weight (kg/cord) |
|---|
GJ/cord values are for air-dried wood at ~20% moisture (about 1 year seasoned). Green wood contains 25–40% more water weight and delivers 20–35% less heat. Softwoods light easily and are great for shoulder seasons; hardwoods burn longer and produce more coals — best for overnight burns. All values per standard bush cord (4×4×8 ft = 128 cubic feet).