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).
• 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). If this happens, pull the Slider Damper out slightly to increase the
air flow to the fire.
Figure 27: Slider / Damper
Installation
door opening). Set the slider
damper so that the pressure
reads 0.18” to 0.20”
W.C. (44.8 to 49.8 Pa).
Some fuels may require
higher or lower settings.
The pressure readings are
taken through a hole in the
front of the firebox under
the door, using a Magnehelic
Gauge.
The slider damper is located
behind the left cab side.
Undo the two (2) T-20
torx screws that hold the
inspection cover on the left
side and remove.
The combustion exhaust
blower is a variable speed
blower controlled by the
heat output button. This
blower will decrease the
26
Note: Some parts have been removed in
order to see components more clearly.
Slider Damper Plate
Exhaust Channel
Exhaust Blower
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