Originally Posted by Andrew
i would take the 4" pipe from the firebox to the smoke chamber and have it come out of the top of the firebox and then go into the smoke chamber, hot air rises and is collecting at the top
Thanks Andrew. Yeah I put the 4" pipe as high up as I could, it's just under that top corrugated bead/bump in the fire chamber barrel. I didn't want to mess with cutting a hole through that bead. There's only about 3" from the pipe to the lid of the fire barrel, so some heat is sitting up there. Maybe if I beef upy exhaust like landarc mention it will pull more of that heat through.