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If the flames diminish to the point of disappearing, the air intake has been reduced too early in
the combustion cycle or the wood used is too wet. If the wood is dry and the air control is used
properly, the flames should decrease, but remain bright and stable.
On the other hand, too much air can make the fire uncontrollable, creating very high temperatures
in the unit as well as in the chimney and seriously damaging them. A reddish glow on the unit
and on the chimney components indicates overheating. Excessive temperatures can cause a
chimney fire.
A
DETAIL A
Figure 6: Air Intake Control
5.6.1 Regulating the air during lighting
Opening the air inlet completely is mandatory during the lighting, and it is recommended to leave
the door ajar during lighting as well, in order to avoid condensation of fumes on the glass. Wait
enough time (until the firebox has warmed up) before starting to regulate the air inlet.
5.6.2 Regulating the air during combustion
Controlling the air intake is the recommended way to help adjust the temperature of the cooking
surface and one of the two recommended ways to adjust the oven temperature. Once the fire
is well established in the combustion chamber, when the flames are vivid and there is a good
bed of embers, it is possible to close the air intake. The more it will be reduced, the more the
combustion will be regulated to stretch over time. On the other hand, you need a very strong
combustion to completely shut off the air intake. It is recommended to reduce it between
15 and 40%.
5.7
Carbon Monoxide
Carbon monoxide is an odourless gas that is highly toxic which can cause death at high
concentrationin air. Installation of a carbon monoxide detector is highly recommanded.
When unburned logs remain in the firebox and the flame disappears, go outside and look at the
chimney exit. If there is visible smoke, it means that there is still combustible gases to burn but
that the fire lacks air to burn properly. In this situation, the CO rate will increase so it is important
to react. Open the door slightly and move the log with a poker. Turn it over and create a passage
for the air below, making a trench with the coal bed. Add small pieces of wood to restart the
Installation and operation manual – Chic-Choc woodburning cookstove
The control of the primary and secondary
air inlet is simultaneous and is done with a
single regulation control, located under the
combustion chamber door.
The optimum regulation of the air inlet can
vary according to various factors, such as the
chimney flue, the temperature of the cookstove
and, the quality of the firewood (moisture, size
and shape).
Do not alter the air regulation control
to increase firing for any reason.
Page 23
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