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Pellet Stove Flame Characteristics.
Last Updated: 03/20/2012
A proper flame in a pellet stove is achieved by the combustion blower pulling air through the burn grate at a rate that matches how fast the stove is feeding pellets.
Too low of an air flow rate will cause a slow waving flame with black tips that causes your glass to soot up very quickly. Plus your stove may smother itself by feeding pellets faster than they can burn
Too much air and the flames are thin and stretched looking and your stove will not produce as much heat as it should. Additionally your stove will probably burn the pellets faster than it feeds them causing your fire to go out from lack of fuel.
A proper flame in your stove will be a bright yellow flame that dances in a lively fashion. The height will vary depending on your stove and the feed rate you are running at but it will look something like this:
Getting the correct flame is essential to your stove producing heat as it should. Every brand of pellets will be slightly different and even the same brand can change from year to year. Use your damper to adjust the air flow to your stove and some models (like the pictured Advantage II-t) have fine adjustment controls for the feed rate and combustion blower voltage.

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