9
HOW MUCH AVAILABLE HEAT IS THERE
IN AIR-DRIED (20% MOISTURE) WOOD PER CORD?
APPROX. B.T.U. AVAILABLE
AVERAGE WEIGHT
IN AN AIR-DRIED CORD
ORDER OF MOST
TYPE
PER CORD
BURNED AT 50% EFFICIENCY
HEAT PER CORD
Ash
2.950 lbs.
11,300,000
Eleventh
Aspen
1,900 lbs.
8,850,000
Fifteenth
Basswood
1,900 lbs.
8,550,500
Sixteenth
Beech
3,240 lbs.
13,900,000
Third
Birch (Yellow)
3,000 lbs.
13,100,000
Sixth
Cherry
2,550 lbs.
11,750,000
Tenth
Elm
2,750 lbs.
12,250,000
Seventh
Hemlock
2,100 lbs.
8,955,000
Thirteenth
Hickory
3,595 lbs.
15,300,000
First
Maple (Hard)
3,075 lbs.
14,500,000
Second
Maple (Soft)
2,500 lbs.
12,000,000
Ninth
Oak (Red)
3,240 lbs.
13,150,000
Fifth
Oak (White)
3,750 lbs.
13,850,000
Fourth
Pine (White)
1,800 lbs.
8,950,000
Fourteenth
Spruce
2,100 lbs.
9,050,000
Twelfth
Tamarack
2,500 lbs.
12,005,000
Eighth
8. Grates
8.1 Grate System and Contro l s
A. Heavy-Duty Cast Iron Grate
System - The functions of a grate
system are to support the coal and
at the same time provide air flow
t h rough the grates to the coal.
Harman grates have a maximum
amount of air flow to produce an
even burning fire. Another function
is to remove the ash from the
unburned coal by grinding, breaking
or shaking them until the ashes fall
through the grates. Harman grates
provide a variable amount of grind-
ing action controlled by the move-
ment of a long shaker-lever located
on the left side of the stove. Grates
are removable without tools.
B. Burns Three sizes of Anthracite
- You can burn pea, nut or stove
coal with these stoves.
C. Exterior Shaker- L e v e r - For
greater safety (from getting burned)
and greater convenience (no need
for separate tools).
IMPORTANT! WHEN SHAKING IS
COMPLETED, TURN THE SHAK-
ER UNTIL THE GRATES ARE
FLAT AND HORIZONTAL. KEEP
ASH DRAWER EMPTY!
9. I n s t a l l a t i o n
I n s t ru c t i o n s
9.1 Unpacking and Inspection
of Parts
Inspect the unit for visible damage.
Stove parts and accessories are
packaged inside the stove. It is rec-
ommended that the owner remove
these parts prior to proceeding with
the installation to avoid parts dam-
age.
NOTE: The doors, grates, and fire-
brick can be easily removed to light-
en the weight prior to moving and
placing the stove.
9.2 Warnings
All stoves must be installed in accor-
dance with state and local building
codes.
9.3 Locating The Stove
Locate the stove as close to the
chimney or flue as possible.
Locate stove where there is suffi-
cient air supply for ventilation and
proper combustion to comply with
the minimum clearance required for
fire protection and accessibility.
9.4 General Information
Installation Checklist:
A. Have only a qualified stove
installer install the stove.
B. B e f o re starting installation,
check for proper clearance to com-
bustibles and where the stove will be
located.
C. Chimney - Have chimney
inspected for:
1. Proper type, Class “A” only,
masonry or all-fuel factory-built.
2. Good physical and mechanical
condition.
3. If manufactured chimney, look
for listing mark and installation in
a c c o rdance with manufacture r
Summary of Contents for SF-150 SF-250
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