Hearthstone Quality Home Heating Products, Inc
®
Craftsbury (Model 8392)
22
Figure 15
– Bypass Closed
Figure 16
– Bypass Open
CATALYST THERMOMETER:
The catalyst
thermometer monitors the downstream temperature
of the catalysts, and indicates when the stove is in
the active range for the catalysts. The catalyst probe
should be spaced 3/8” from the body of the stove.
When the stove is in the “active” range, the bypass
handle should be closed. When the stove is in the
“Inactive” range, the bypass handle should be
opened until the stove heats up. If the thermometer
is in the “Too Hot” range, keep the door closed, fully
close the air control, and allow the stove to cool
down until the thermometer falls
into the “Active”
Range. Once the catalyst thermometer has reached
the active range, heat generated from burning
smoke keeps the catalysts warm and active as long
as fuel remains in the stove. The Craftsbury typically
operates in the 800
⁰
F to 1300
⁰
F range.
Figure 17
– Catalyst Thermometer
C
HOOSING
F
IREWOOD
Burn only natural firewood (known as cordwood) in
the Craftsbury Model 8640 Wood Heater. This stove
is not designed to burn other fuels.
•
CAUTION: DO NOT USE CHEMICALS OR
FLAMMABLE FLUIDS TO START THE FIRE. DO
NOT
USE
CHARCOAL,
PELLETS,
COAL,
ARTIFICIAL LOGS OR ANY OTHER MATERIALS AS
FUEL; THEY ARE NOT SAFE. DO NOT BURN
GARBAGE OR FLAMMABLE FLUIDS.
•
THE USE OF UNAUTHORIZED FUEL SUCH AS
COAL COULD PRODUCE HIGH LEVELS OF
CARBON DIOXIDE IN THE LIVING SPACE. AT HIGH
LEVELS CARBON DIOXIDE COULD RESULT IN
PERSONAL INJURY OR DEATH.
The quality of your firewood directly affects heat
output, duration of burn and performance of your
stove. Softwoods generally burn hotter and faster,
while hardwoods burn longer and produce better
coals. Density and moisture content are two critical
factors to consider when purchasing wood.
The following is a list of some wood species and their
relative BTU (British Thermal Unit) content. The
higher the BTU content, the longer the burn. Firewood
with higher BTUs is generally ideal for a wood stove.
Burn untreated wood only. Other materials such as
wood preservatives, metal foils, coal, plastic,
garbage, Sulphur, or oil may damage the catalysts.
Wood Heat Value: Sorted By Btu Content
Common Name
Lb/ cord
MBTU/ cord
High
Osage Orange (Hedge)
4,728
32.9
Hickory, Shagbark
4,327
27.7
Hop Hornbeam (Ironwood)
4,267
27.3
Beech, Blue (Ironwood)
3,890
26.8
Birch, Black
3,890
26.8
Locust, Black
3,890
26.8
Hickory, Bitternut
3,832
26.7
Locust, Honey
3,832
26.7
Apple
4,100
26.5
Mulberry
3,712
25.8
Oak, White
4,012
25.7
Medium High
Beech, European
3,757
24
Maple, Sugar
3,757
24
Oak, Red
3,757
24
Ash, White
3,689
23.6
Birch, Yellow
3,689
23.6
