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For a wood stove, being air-tight, means that air can only allow to get into the stove through the channels that it suppose to, not anywhere else. All wood stoves have some means to control the air flow, therefore, if the stove have equipped with the required elements to control the air flow, then it will be possible to adjust the wood stove for it's best smokeless performance.
The EGAN camping wood stove is not an air tight, because we have the cooktop hole on the top of the stove, however, this stove has all required means to controls the airflow and if it properly adjusted, no smoke will leak from the EGAN camping stove.
Q4: Is it possible that the smoke leak out of this stove?
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If properly adjusted, no smoke will leak from this camping stove. However, if the airflow inside the firebox is blocked for any reasons, or when the moisture in the wood is too high (wet wood) the combustion will be incomplete and the smoke can leak out of the stove which is an indication that the stove is not properly adjusted or something is wrong.
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Remember, you should always control the airflow manually by adjusting the damper (on the first part of the chimney pipe) and the airflow control (on the door). The stove cannot do this adjust itself automatically!
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In order to have no smoke leakage, the air flow inside the stove should be adjusted so that the air can flow in the stove from the airflow valve on the door and then goes up through the chimney pipe. If the fire can not get enough oxygen to burn it will produce smoke as a result of incomplete combustion.
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Always start the fire inside the stove using small wood pieces and as the fire establishes add more wood pieces.
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1) If the damper (on the first part of the chimney pipe) and the airflow control (on the door) are properly adjusted, no smoke will accumulate inside the stove. When you see that the smoke is coming out of the cooktop hole, that is a sign that there is no airflow in the stove. In this case, you should open the airflow knob on the door, and also open the damper to let the air draft take the smoke out.
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2) If the airflow knob on the door, and the damper are both fully open, and still smoke comes out from the cooktop hole, that shows there are too many wood logs inside that block the airflow, so you need to decrease the amount of wood inside.
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3) Always make sure you have enough updraft ( upward airflow from inside the stove to the chimney) by adjusting the damper (on the first part of the chimney pipe) and the airflow control (on the door).
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4) If the airflow knob on the door, and the damper are both fully open, and there's not too much wood inside the stove, but you still see excessive smoke, then most likely the wood logs/pieces are be wet. Use only dry wood as fuel for this stove.
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For those who have previous experience with small wood stoves, it would be easy to work with this camping stove. Those who have no experience with a camping wood stove might find adjusting the stove a little bit challenging at the beginning, however, by keeping on testing and watching the results, it will become easy to perfectly adjust it.
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Please only use dry wood as fuel for this stove. Using wet wood will result in incomplete combustion, smoke, and creosote formation inside the chimney pipe which consequently will damage the chimney pipe and present safety issues.
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Q5: Why the chimney pipe gets red? What should I do?
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When you see the chimney pipe is becoming red-hot, as seen in this photo, that is a sign of over heat, and as mentioned in a WARNING in the safety instructions, you should reduce the airflow by a little bit closing the airflow knob on the door.
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Q6: How much burn-time we can get from this camping stove?
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The burning time depends on so many factors that make it impossible to predict accurately. Major factors are: moisture in the wood log, air humidity, ground elevation (from the sea level) which affects atmospheric pressure, and the stove airflow adjustment. Based on our experiments with this camping stove, for two pieces of 1ft (12") long with about 3" diameter, and normal burning rate, it gives about 2 hrs burning time. As mentioned, this can be different if it is tested under different conditions.
This stove comes with a 2.5 m (8.2 ft) long chimney pipe which provides a good strong air draft inside the firebox. We also have a damper on the first piece of the chimney pipe which can be used to trap and keep more heat in the stove when it is partially closed.