Been a full winter and the garage was always warm when I needed it to be from the ozzert design oil stove.
All I could see from the chimney was some heat vapors, nothing elts. On the other end of the chimney was a hot, heat throw'n stove keeping me warm as I worked on different projects.
Watch the you tube vids, pay attention to ozzerts burn chamber 's' and build one just like that and it WILL make a lot of cheap heat.
THANK YOU OZZERT!!!