www.astria.us.com
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Wood Type
Density
Dogwood
0.70 - 0.79
Hickory
0.70 - 0.74
Oak
0.60 - 0.73
Beech
0.64 - 0.66
Hard Maple
0.58 - 0.65
Birch
0.55 - 0.64
Mulberry
0.59 - 0.63
Apple
0.58 - 0.62
Ash
0.57 - 0.61
Southern Pine
0.51 - 0.60
Elm
0.50 - 0.59
Walnut
0.52 - 0.55
Soft Maple
0.47 - 0.54
Cherry
0.50 - 0.52
Sycamore
0.49 - 0.52
Douglas Fur
0.45 - 0.51
Chestnut
0.42 - 0.44
Spruce
0.41 - 0.44
Hemlock
0.40 - 0.42
Redwood
0.33 - 0.40
Aspen
0.37 - 0.39
White Pine
0.35 - 0.37
WOOD SELECTION
Selecting the right wood depends on your
preference for comfort, aroma and visual
image. If you want a constant heat output,
a short flame with a glowing coals type
of fire, select a hardwood. If you want a
short hot fire for damp and chilly morn-
ings, select a softer wood. The following
chart is a guide to aide in wood selection.
Woods at the top of chart are harder woods
and those at bottom of chart are softer.
Aromatic woods are best from nut and
fruit trees such as hickory, apple, cherry,
beech, etc. Heat value from harder woods
is better than from softer. It is important
to burn wood that has been seasoned.
Seasoning reduces moisture content for
a good steady fire and less creosote out-
put. The recommended length of time for
proper seasoning is about 1 year.
Never burn trash, plastics, gasoline,
rubber, industrial solvents, flammable
liquids, naptha, household garbage,
material treated with petroleum products,
leaves, paper products, cardboard or salt
driftwood.
