WanderingStovie wrote:The first test of the Tornado Cat version 4 produced a yellow flame and turned the coating inside the steel can to ash. I removed the ash with a rotating steel brush.
I put an ounce of denatured alcohol in the Tornado Cat, lit it, waited 20 seconds, and set a Halulite Minimalist pot with 2 cups (480 ml) of 73F water on the rim of the stove. The flame quickly went out. I relit the stove, waited 30 seconds, and set the pot on the rim. 12 minutes after relighting, the water boiled vigorously. I removed the pot and watched the tornado-like flame until it died down and the last bit of fuel burned in the bottom of the stove. The flame was blue while the pot was on the stove.
The windscreen I used is 5 3/4" tall and 5 1/4" in diameter. It is partially closed at the bottom, with an 80 mm diameter hole in the center, and three legs which leave a 1/4" gap under the bottom rim. The stove and windscreen rested on a steel lid, which rested on concrete. The temperature was about 30F and the wind was mild.
Ok, what is your opinion of the stove at this point?