I have a Empire owb..it has the blower on the door ..I have often wondered if all owbs are like this, I have thought about making a air delivery system inside my heater so the air would blow up from the bottom in several different places instead of it all coming from the front.. just to see if I would get a better burn on my wood.. several times I have went to add more wood and find a stick or two un burnt but covered in ashes..