Table 4 Combustion and burning properties of the different fuel types (0 °C, 7 kg, 30-cm diameter fire experiments)
| Fuel type, 7 kg | Species | Weight fuel, kg | Moisture content | Duration fire (min) | Duration flame (min) | Peak temp fire, °C | Peak temp surface | Embers | Sparks | Smoke |
|---|---|---|---|---|---|---|---|---|---|---|
| Fresh bone | Capreolus capreolus | 7.19 + 1.52 kg silver birch | x | 180 | 170 | 764 (65) | 474 (45) | No | No | High |
| Soft wood | Picea abies | 7.14 | 18 | 60 | 55 | 642 (25) | 522 (25) | Yes | Yes | High |
| Soft wood | Alnus glutinosa | 6.98 | 18 | 75 | 55 | 562 (20) | 389 (50) | Yes | Yes | High |
| Soft wood | Pinus sylvestris | 7.06 | 20 | 135 | 110 | 751 (60) | 510 (80) | Yes | No | Medium |
| Soft wood | Larix decidua | 7.25 | 22 | 130 | 100 | 618 (45) | 396 (25) | Yes | No | Low |
| Hard wood | Quercus robur | 7.11 | 21 | 155 | 120 | 596 (70) | 421 (50) | Yes | No | Low |
| Hard wood | Fagus sylvatica | 7.04 | 19 | 105 | 85 | 729 (40) | 432 (45) | Yes | No | Low |
| Hard wood | Fraxinus excelsior | 6.92 | 16 | 140 | 80 | 651 (95) | 384 (50) | Yes | No | Low |
| Hard wood | Betula pendula | 7.02 | 19 | 85 | 70 | 816 (30) | 421 (45) | Yes | Yes | High |