ggans2 wrote:What exactly is a base burner?
Actually a base burner is a stove that circulates the exhaust gasses through a secondary, heat exchanging chamber to extract more heat out of the fuel. The path of the fire usually goes down from the back around and under the base of the stove and then back up to finally exhaust at the collar. The base of the stove actually heats up hence the term base burner. Baseburners may or may not have a hopper or magazine to feed the fire as it burns.
Look at the picture of the back of my stove in the ,"Got The Glenwood Installed and Tested," thread and you will see a vertical pipe that is between the stove and the stove pipe collar. It is hard to see but there is a damper lever there to set the stove for direct exhaust or base burning. The vertical pipe is where the smoke follows the path down through the heat exchanging passages. A standard cylinder stove has a direct vent at the top of the barrel where as a base burner has the exhaust collar near the middle of the stove. Hope this helps.