Actually, this stove design has been in commercial production for over 100 years. The optimus, primus and other stoves are based on this technology. To see some of the classic designs, take a look at the photo gallery at the Classic Stoves Forum..
One hole for the "jet" burner. Two holes in the intake pipes (one in each pipe) to draw in alcohol. Some people make them with two jet holes... It depends on the diameter of the pipe (8 mm or 10 mm), how many loops (one or two) and the size of the wick.
