Airflow of a wood insert...please explain

[vector1701]

So my Jotul 550 Rockland is scheduled to be installed next week and this site has offered tremendous information on a topic I freely admit to not know much about. Thanks to all the members for the valuable information. I do have a detail question on the airflow of a wood stove insert. Can someone explain the fow of the air, input and output, and when I change the airflow with the lever, I assume that air that is let into the firebox to burn the wood is then sent up the chimney...Is this the % of air that is considered "inefficient" coming from the inside of the house and subsequently sent up the flue?

Thanks!!

 

[Seasoned Oak]

Im certainly no expert but all solid fuel stoves take air from the house(unless there is an outside supply pipe attached) and after it provides oxygen to the fire goes up the chimney.
Efficiency is loss of Heat ,not loss of air.or the difference between the flue gas temp and the room temp. The higher the flue gas temp the lower the efficiency because all the heat is not being extracted from the combustion process. My NG condensing furnace for example was 95% effecient ,the flue gas temp was about 120 deg. With my wood stove i need a higher flue temp to maintain a strong draft. Loss of air up the chimney is different from loss of heat.