Had a 4-Dog stove and liked it. The front vent looks like it'll let sparks out, but it doesn't. As others have mentioned, the baffle provides a hot spot for cooking but it also prevents sparks from going up the flue. Never saw a spark fly out the flue, nor had burns on my tent.
The owner of the company is a straight shooter. I spoke to him before ordering my stove. Was going to buy a water jacket, but he recommended a big kettle instead. Reason being that you can carry the hot water where you want, like outside the tent. I kept the kettle on one stove shelf all the time where it stayed hot but not boiling. Sliding it over to the stovetop got it boiling quick. Saved a decent amount of money compared to the water jackets, and appreciated the advice. He had quite a few other camping tips, and I enjoyed the conversation.
