Drolet YUKON Instructions Manual page 27

Solutions #4: Your exhaust system may be toot short. In order to obtain a sufficient draft, your exhaust
system must have a minimum height. A minimum height of 15 feet (from the connector at the back of the
stove to the chimney cap outside the house) will be adequate in most cases. HOWEVER: remember that
longer is not always better. An exhaust system that is excessively high may be difficult to pre-heat and
control. If your exhaust system is too short, add some chimney sections.
Solution #5: Your exhaust system may be too tortuous or may not have the minimum slope required to
allow for a proper draft. Your exhaust system should never have more than two 90
the horizontal sections of your exhaust system should be as short as possible (maximum 8') and must have
a minimum upward slope of ¼" per foot.
Solution #6: Your chimney may be oversized. The effect of an oversized chimney is generally the
reduction of the temperatures inside the chimney, due to the larger volume that needs to be heated. This
weakens the chimney draft. Our oil stoves are tested to be installed on a chimney with an interior diameter
of 5 inches (127mm). If you do not have a 5" chimney, you can insert a stainless steel liner inside the
existing chimney in order to reduce its interior diameter to 5 inches.
temperatures higher, therefore increasing the chimney draft.
WHY IS THE FLAME PATTERN UNSTABLE?
Possible causes and solutions :
1- The chimney is oversized. The effect of an oversized chimney is generally the reduction of the
temperatures inside the chimney, due to the larger air volume that needs to be heated. This weakens the
chimney draft, which can cause instability in the flame pattern.
Solution: Our oil stoves are tested to be installed on a chimney with an interior diameter of 5 inches
(127mm). If you do not have a 5" chimney, you can insert a stainless steel liner inside the existing chimney
in order to reduce its interior diameter to 5 inches. This will help keep chimney temperatures higher,
therefore increasing the chimney draft and stabilizing the flame pattern.
2- The chimney is too long. The longer the chimney, the longer it takes to reach the adequate draft and
stabilize the flame pattern.
Solution: Start the fire by pouring 4 onces (100ml) of fire-lighting gel into the burner. Do not turn the oil on
right away (leave the oil flow control knob at zero). The burning gel will allow the chimney to heat up until it
reaches a temperature that will generate an adequate draft. When the burning gel's intensity starts to
diminish, turn the oil flow control knob to position #1. Increase the oil flow by one position every 10 minutes
until you reach the desired intensity. This lighting procedure should allow the chimney to heat up until it
reaches a temperature that will generate an adequate draft and stabilize the flame pattern.
3- The flame pattern may be disturbed by the wind blowing into your chimney. This is often caused by the
interference of nearby structures.
Solution : In order to avoid the interference of nearby structures, your chimney should be higher (by at
least two feet) than any structure located in a horizontal distance of 10 feet. Most houses located in
residential areas do not have structures located within a 10 foot distance of the chimney, other that the
house's own roof top. It this is your case, you must make sure that the chimney exceeds the highest roof
point by at least 2 feet. You can also use a chimney cap that is specifically designed to reduce the effects
of wind. Your retailer will be able to provide you with the part you need.
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elbows. Furthermore,
This will help keep chimney