6
Figure 5: Combustion Air Control Levers
2.2 Specifications
Appliance Type:
Adjustable Burn Rate Wood Heater – Non-Catalytic
Fuel Type:
Dry Cordwood
Maximum Log Length:
18 in (47 cm)
Burn Time
1
:
6 to 8 hrs
Firebox Volume:
1.85 ft
3
(0.053 m
3
)
Heating Area:
500 to 1,800 ft
2
(45 to 170 m
2
)
Average Particulate Emissions Rate
2
:
1.90 gm/hr
Average CO Emissions Rate
3
:
103.6 g/hr
EPA Protocol:
Method 28R, ASTM2780-10, and ASTM2515-11
Efficiency (Crib Wood):
HHV
4
: 66.9% | LHV
5
:
Heat Output (Crib Wood):
10,958 to 22,421 BTU/hr (3,211 to 6,571 W)
Optimum Efficiency:
75%
Optimum Heat Output:
60,000 BTU (17.6 kWh)
Efficiency Protocol:
CSA B415.1-10
2.3 Combustion Air Control
The Combustion Air Control is a patented mechanism (Patent No: US 7,325,541 B2) that regulates the air flow
into the firebox based on the temperature of the unit. It is located on the top of the firebox, at the front center of
the unit (see Figure 5). The combustion air control of the FUSION 18 has two components: the Activator and
the Burn Rate Selector. The left combustion control lever is the Activator. When starting a fire or adding a new
load of wood, the Activator must be pushed in to allow a primary
source of air to enter the firebox. The Activator will retract automatically
with heat. The right combustion control lever is the Burn Rate Selector.
The Burn Rate Selector can slide sideways to achieve different burn
rates. When the Burn Rate Selector is positioned to the left, a
maximum burn rate is achieved and when it is positioned to the right, a
minimum burn rate is set. For optimum efficiency, it is recommended to
operate the unit with the Burn Rate Selector set at the low to
medium/low position.
WARNING: Never manipulate the Combustion Air Control with bare
hands as it gets hot when the FUSION is in operation. Use the Cold
Hand Key (see Section 2.4) to adjust the Combustion Air Control.
1
Depending on combustion air control setting (see Section 4.3 for further details).
2
Officially tested and certified by an independent.
3
Note that rate is smaller for low to medium/low burn rates.
4
Higher Heating Value.
5
Lower Heating Value.
