I built a camper out of a 16' box truck years ago for hunting trips up north and heated it with a 10,000 btu kerosene heater not only did it stink us out the heat drove us out! We slept with the door rolled up about a foot in 20 degree weather. Came home and tossed that kerosene heater on the junk pile! Next I built a woodstove similar to yours with a pipe welded on that went thru the box wall putting an inline draft damper for the combustion air at rear of stove near bottom. The flue pipe exhaust went out about 1/2 way up the wall. The stove itself had no draft holes other than what seeped in around door gasket. Picking the right size wood to get a smolder rather than a flame was the trick but we used that "camper" for years until I bought a piece of land and built a hunting shack.
