1 f
| =
; 418; 4041 76,074 | 16,778| 224 | ESS BOHe | = 175 | 30,585! 40.4
| |
Spruce and true | pe) |
fir | Beoees| SID OTS ae pe 20,7361 40.4
i ‘

ea)

The total estimated volume of sawmill residue produced from
log to rough green lumber in the Fort George Forest District is shown
in Table VI. These figures are shown in cubic feet and as the equiv-
alent number of cords of solid residue, and units of sawdust.

TABLE VI

LA

Estimated Volume of Wood Residue Produced
Fort George Forest District in 1950

{Senne eam Se ee
! H .
i Total Cub Solid Residue H Sawdust iTotal Residue
i
i

@Qigihttc | cords (2 ) | cancthe! ene (>) CVs “cu.ft. |

a remrn SS aE

) one cord is equiyalent to 75 cu.ft. of solid wood.

) One unit of sawdust is equivalent to 80 cu. ave of solid wood.
)gome ae fir is converted to veneer but the total waste is
approximately that of a sawmill and no orfercn tation has been

V. PRESENT UTILIZATION OF SAYMILL RESIDUES

Some sawdust at the present time is used as fuel for steam
operated sawmills and for a few domestic sawdust burners, but most of
it is burned or left in the woods.

Solid residue is used for domestic fuelwood and for fuel for
oilers. This accounts for a very minor proportion of the solid residue
produced.

Calorific values and burning tests have not been made on
western white spruce but the Ottawa Forest Products Laboratory has made
tests of white spruce which indicate that it js satisfactory for burning
in sawdust burners. The figures in Table VII 7) show the values obtained
for coarse and irregular sawdust cut from water driven whites spruce and
balsam mixed in proportions of 70 per cent and 30 per cent respectively.
These fisures should apply to western white spruce.

COpuiiesin No. 101, "Sawdust as a Fuel in Eastern Canada", Forestry
Branch, Department of Resources and Development.

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