Hearthstone
Quality Home Heating Products, Inc.
® Heritage Model 8021
Page 19 of 30
C
HOOSING
F
IREWOOD
Burn only natural firewood (known as cordwood)
in the Heritage 8021 Woodstove. This stove is
not designed to burn other fuels.
CAUTION: DO NOT USE CHEMICALS OR
FLAMMABLE FLUIDS SUCH AS GASOLINE,
NAPHTHA, KEROSENE, CHARCOAL LIGHTER
FLUID OR ENGINE OIL TO START A 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 quality of your firewood affects heat output,
duration of burn and performance of your stove.
Softwoods generally burn hotter and faster, while
hardwoods burn longer and produce more long
lasting coals. Density and moisture content are two
critical factors to consider when purchasing wood for
your stove.
The following is a list of many common wood
species and their relative BTU (British Thermal Unit)
content. The higher the BTU content the longer the
burn. Firewood with higher a BTU content is
generally considered ideal for a wood stove.
W
OOD
H
EAT
V
ALUE
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
Medium
Juniper, Rocky Mtn
3,150
21.8
Elm, Red
3,112
21.6
Coffeetree, Kentucky
3.112
21.6
Hackberry
3,247
20.8
Tamarack
3,247
20.8
Birch, Gray
3,179
20.3
Birch, White (Paper)
3,179
20.3
Walnut, Black
3,192
20.2
Cherry
3,120
20
Ash, Green
2,880
19.9
Cherry, Black
2,880
19.9
Elm, American
3,052
19.5
Elm, White
3,052
19.5
Sycamore
2,808
19.5
Ash, Black
2,992
19.1
Maple, Red
2,924
18.7
Fir, Douglas
2,900
18.1
Medium Low
Boxelder
2,797
17.9
Alder, Red
2,710
17.2
Pine, Jack
2,669
17.1
Pine, Norway (Red Pine)
2,669
17.1
Pine, Pitch
2,669
17.1
Catalpa
2,360
16.4
Hemlock
2,482
15.9
Spruce, Black
2,482
15.9
Pine, Ponderosa
2,380
15.2
Low
Aspen, American
2,290
14.7
Butternut (Walnut, White)
2,100
14.5
Spruce
2,100
14.5
Willow
2,100
14.5
Fir, Balsam
2,236
14.3
Pine, White (Eastern,
Western)
2,236
14.3
Fir, Concolor (White)
2,104
14.1
Basswood (Linden)
2,108
13.8
Buckeye, Ohio
1,984
13.8
Cottonwood
2,108
13.5
Cedar, White
1,913
12.2
Moisture content 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. You
must season green wood before using it in your
wood stove. To season green wood properly, split,
stack, and allow it to air dry for a period of one year.
Green wood may provide less than 2000 Btu per
pound, whereas dry wood can provide up to 7000
Btu per pound.
