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If the fire should happen to go out and the heat output indicator has been set on the lowest setting, the
Slider Damper should be pushed in slightly, decreasing the air in the firebox.
If, after long periods of burning, the fire builds up and overflows the burn pot or there is a build up of
clinkers, this would be a sign that the pellet quality is poor, this requires more primary air, the slider
damper must be pulled out to compensate. Pulling the slider damper out gives the fire more air.
The easiest way to make sure that an efficient flame is achieved is to understand the characteristics of
the fire.
• A tall, lazy flame with dark orange tips requires more air – Open slider (pull out) slightly.
• A short, brisk flame, like a blowtorch, has too much air – Close slider (push in) slightly.
• If the flame is in the middle of these two characteristics with a bright yellow/orange, active flame
with no black tips then the air is set for proper operation.
SPECIAL NOTES:
Pellet quality is a major factor in how the Pellet stove will operate. If the pellets have a high moisture
content or ash content the fire will be less efficient and has a higher possibility of the fire building up and
creating clinkers (hard ash build-up).
IMPORTANT: Taking a reading of vacuum pressure inside the firebox with a magnehelic gauge should
be used to set the slider for best combustion. The best settings are a reading of approximately
0.11 - 0.12 inches of water column (27 - 30 Pa) on the high fire setting. Some fuels may
require higher or lower settings. The reading can be taken from the ” (3 mm) hole located on the
front of the unit below the ash shelf.
Installation
SLIDER/DAMPER SET-UP:
This is used to regulate the airflow through the pellet stove. The slider damper should be set by a trained
technician using magnehelic.
Air Intake Box
Exhaust Channel
Slider Damper
Exhaust Blower
Figure 28: Slider/Damper Plate in Unit.
The slider damper is located
behind the left side panel. To
open the left side panel, undo the
one screw located in the upper
front corner of the cabinet side
between the louvers. Also loosen
three screws down the back of
the side panel.
The combustion exhaust blower is
a variable speed blower controlled
by the heat output button. This
blower will decrease the vacuum
pressure inside the stove and as
the heat output button is turned
down. The vacuum pressure
inside the firebox will increase as
the combustion exhaust blower
increases in speed (higher heat
output setting).