wood heat value (BTU)
The burning quality of different woods, an important consideration when choosing fuel for a wood stove, is listed in the table below.
Species | Density (lb./cu.ft.) |
Weight per cord (lb.) |
BTUs per cord (millions) |
Recoverable BTUs per cord (millions) |
Units needed to produce 1 million BTUs |
black locust | 52.5 | 4462 | 28.5 | 19.95 | 0.051 |
hickory | 50.9 | 4327 | 27.7 | 19.39 | 0.052 |
east hophornbeam | 50.2 | 4267 | 27.3 | 19.11 | 0.052 |
apple | 48.7 | 4100 | 26.5 | 18.55 | 0.054 |
white oak | 47.2 | 4012 | 25.7 | 17.99 | 0.056 |
sugar maple | 44.2 | 3757 | 24 | 16.8 | 0.060 |
red oak | 44.2 | 3757 | 24 | 16.8 | 0.060 |
beech | 44.2 | 3757 | 24 | 16.8 | 0.060 |
yellow birch | 43.4 | 3689 | 23.6 | 16.52 | 0.061 |
white ash | 43.4 | 3689 | 23.6 | 16.52 | 0.061 |
hackberry | 38.2 | 3247 | 20.8 | 14.56 | 0.069 |
tamarack | 38.2 | 3247 | 20.8 | 14.56 | 0.069 |
paper birch | 37.4 | 3179 | 20.3 | 14.21 | 0.070 |
cherry | 36.7 | 3121 | 20 | 14 | 0.071 |
elm | 35.9 | 3052 | 19.5 | 13.65 | 0.073 |
black ash | 35.2 | 2992 | 19.1 | 13.37 | 0.075 |
red maple | 34.4 | 2924 | 18.7 | 13.09 | 0.076 |
box elder | 32.9 | 2797 | 17.9 | 12.53 | 0.080 |
jack pine | 31.4 | 2669 | 17.1 | 11.97 | 0.084 |
norway pine | 31.4 | 2669 | 17.1 | 11.97 | 0.084 |
hemlock | 29.2 | 2482 | 15.9 | 11.13 | 0.090 |
black spruce | 29.2 | 2482 | 15.9 | 11.13 | 0.090 |
ponderosa pine | 28 | 2380 | 15.2 | 10.64 | 0.094 |
aspen | 27 | 2290 | 14.7 | 10.29 | 0.097 |
white pine | 26.3 | 2236 | 14.3 | 10.01 | 0.100 |
balsam fir | 26.3 | 2236 | 14.3 | 10.01 | 0.100 |
cottonwood | 24.8 | 2108 | 13.5 | 9.45 | 0.106 |
basswood | 24.8 | 2108 | 13.5 | 9.45 | 0.106 |