Morgan & Company HEARTHSTONE 8470 User Manual
HearthStone Quality Home Heating Products, Inc. ® Morgan Model 8470
15
The quality of your firewood affects heat output, duration
of burn and performance of your Fireplace Insert.
Softwoods generally burn hotter and faster, while
hardwoods burn longer and produce more coals. Density
and moisture content are two critical factors to consider
when purchasing wood for your Fireplace Insert.
The following is a list of wood species and their relative
BTU (British Thermal Unit) content. The higher the BTU
the longer the burn. Firewood with higher BTUs is
generally considered ideal for a wood stove.
HIGH: Apple, Black Birch, Hickory, Locust, White Oak,
Black Beech, Mesquite
MEDIUM HIGH: White Ash, Beech, Yellow Birch,
Sugar Maple, Red Oak
MEDIUM LOW: Black Ash, White Birch, Grey Birch,
Elm, Norway Pine, Pitch Pine, Black Cherry, Soft Maple,
Tamarack
LOW: White Pine, White Cedar, Balsam Fir, Spruce,
Aspen, Basswood, Butternut, Hemlock
Moisture content also plays a key role in the performance
of your stove. Wood freshly cut from a living tree (green
wood) contains a great deal of moisture. As you might
expect, green wood has difficulty burning and should be
seasoned before using it in your wood stove. To properly
season green wood, it should be split, stacked and allowed
to air dry for a period of one year.
Stack the firewood on skids or blocks to keep it off the
ground, cover only the top of the stack. Plastic or tarps
that cover the sides of the woodpile trap moisture and
prevent the wood from drying. As for stacking, an old
Vermonter said, "The spaces between the logs should be
large enough for a mouse to get through, but not for the
cat that's chasing it."
Firewood should not be stored within the Fireplace
Insert's specified clearances to combustible materials.
of burn and performance of your Fireplace Insert.
Softwoods generally burn hotter and faster, while
hardwoods burn longer and produce more coals. Density
and moisture content are two critical factors to consider
when purchasing wood for your Fireplace Insert.
The following is a list of wood species and their relative
BTU (British Thermal Unit) content. The higher the BTU
the longer the burn. Firewood with higher BTUs is
generally considered ideal for a wood stove.
HIGH: Apple, Black Birch, Hickory, Locust, White Oak,
Black Beech, Mesquite
MEDIUM HIGH: White Ash, Beech, Yellow Birch,
Sugar Maple, Red Oak
MEDIUM LOW: Black Ash, White Birch, Grey Birch,
Elm, Norway Pine, Pitch Pine, Black Cherry, Soft Maple,
Tamarack
LOW: White Pine, White Cedar, Balsam Fir, Spruce,
Aspen, Basswood, Butternut, Hemlock
Moisture content also plays a key role in the performance
of your stove. Wood freshly cut from a living tree (green
wood) contains a great deal of moisture. As you might
expect, green wood has difficulty burning and should be
seasoned before using it in your wood stove. To properly
season green wood, it should be split, stacked and allowed
to air dry for a period of one year.
Stack the firewood on skids or blocks to keep it off the
ground, cover only the top of the stack. Plastic or tarps
that cover the sides of the woodpile trap moisture and
prevent the wood from drying. As for stacking, an old
Vermonter said, "The spaces between the logs should be
large enough for a mouse to get through, but not for the
cat that's chasing it."
Firewood should not be stored within the Fireplace
Insert's specified clearances to combustible materials.
B
UILDING
A F
IRE
Once you understand the controls of your wood Fireplace
Insert and have chosen the appropriate firewood, you are
ready to start a fire.
Insert and have chosen the appropriate firewood, you are
ready to start a fire.
B
REAKING
I
N
Y
OUR
W
OOD
F
IREPLACE
I
NSERT
It is imperative that your Fireplace Insert be "broken in"
slowly. Cast iron must be "seasoned"; over-firing a new
Fireplace Insert may cause castings to crack or may
damage other Fireplace Insert parts. Moisture in the
slowly. Cast iron must be "seasoned"; over-firing a new
Fireplace Insert may cause castings to crack or may
damage other Fireplace Insert parts. Moisture in the
soapstone must be driven out slowly to minimize the
“shock” to the stone of its first exposure to high firebox
temperatures. In addition, the asbestos-free furnace
cement must be cured slowly to insure adequate sealing
and bonding.
When you light your first fires, the wood Fireplace Insert
will emit some smoke and fumes. This is normal “off-
gassing” of the paints and oils used when manufacturing
the wood Fireplace Insert. If you find it necessary, open a
few windows to vent your room. The smoke and fumes
will usually subside after 10 to 20 minutes of operation.
The odor and smoke will end once the Fireplace Insert is
“cured”.
The first fires may produce other odors from impurities
that exist in the area immediately surrounding the
Fireplace Insert. Some of these impurities can be
cleaning solvents, paint solvents, cigarettes, smoke, pet
hair, dust, adhesives, a new carpet, and new textiles.
These odors will dissipate over time. You can alleviate
these odors by opening a few windows or otherwise
creating additional ventilation around your Fireplace
Insert. If any odor persists, contact your dealer or an
authorized service technician.
If you adhere to the following break-in procedure, as well
as all other operating procedures in this manual, the cast
iron and soapstone components of your Fireplace Insert
will give you many years of trouble-free use. With use,
the color of the soapstone may change and small fractures
may appear on the surface of the stone. These changes
will only add character and distinction to your Fireplace
Insert.
Avoid the following conditions that can cause the
soapstone or cast iron pieces to break:
• Do not throw wood into the Fireplace Insert.
“shock” to the stone of its first exposure to high firebox
temperatures. In addition, the asbestos-free furnace
cement must be cured slowly to insure adequate sealing
and bonding.
When you light your first fires, the wood Fireplace Insert
will emit some smoke and fumes. This is normal “off-
gassing” of the paints and oils used when manufacturing
the wood Fireplace Insert. If you find it necessary, open a
few windows to vent your room. The smoke and fumes
will usually subside after 10 to 20 minutes of operation.
The odor and smoke will end once the Fireplace Insert is
“cured”.
The first fires may produce other odors from impurities
that exist in the area immediately surrounding the
Fireplace Insert. Some of these impurities can be
cleaning solvents, paint solvents, cigarettes, smoke, pet
hair, dust, adhesives, a new carpet, and new textiles.
These odors will dissipate over time. You can alleviate
these odors by opening a few windows or otherwise
creating additional ventilation around your Fireplace
Insert. If any odor persists, contact your dealer or an
authorized service technician.
If you adhere to the following break-in procedure, as well
as all other operating procedures in this manual, the cast
iron and soapstone components of your Fireplace Insert
will give you many years of trouble-free use. With use,
the color of the soapstone may change and small fractures
may appear on the surface of the stone. These changes
will only add character and distinction to your Fireplace
Insert.
Avoid the following conditions that can cause the
soapstone or cast iron pieces to break:
• Do not throw wood into the Fireplace Insert.
• Do not use the door as leverage to force wood into
the Fireplace Insert.
• Do not load wood that is encrusted with ice into a
burning stove as the thermal shock can cause
damage.
damage.
• Do not use a manufactured grate. Burn the fire
directly on the soapstone that lines the bottom of the
firebox.
firebox.
The bottom layer of soapstone in the firebox is intended
to prevent thermal stress and should remain in place in the
fire box at all times.
B
UILDING
A B
REAK
I
N
F
IRE
1) Open the front door and place five or six
double sheets of tightly twisted newspaper