SWPaDon wrote: If it were a baseburner, the exhaust gasses would go where yours does.........around the firepot, and down aoround the ashpan and the exit the stove.
I'm still not clear on the path of the gasses with a baseburner (thick skull). In a true baseburner, do the gasses go around the firepot (like within the firebox?), then down through the ashpan, then exit the stove (in a true baseburner do the gasses exit a the base of a back pipe or move back to the top before going out the pipe connecting to the flue?)
On a related note; could the pipe on the stove in the listing (Barstow) be considered an "indirect back pipe
The back pipes are divided in half, inside, by a vertical baffle plate that extends down almost to the base of the pipe, with a damper near the top of the baffle.
When in direct mode - the baffle plate damper is open - the gases can go directly from the stove barrel, through the damper opening in the pipe baffle plate, to the exit collar.
When in indirect mode - the baffle plate damper is closed - the gases then must travel down the front half of the back pipe, turn under the baffle plate, and travel up the rear half to reach the exit collar on the rear of a back pipe.
With a base heater that uses a back pipe, the bottom of that back pipe would open into a sealed chamber which is below the ash pan area. The pipe baffle would extend down to mate up with a baffle in that base chamber. In base heater mode, the gases would have to flow down the back pipe and around the baffle in the base chamber to get to the other half of the back pipe and then travel up the pipe to the exit collar.