So, after all the reading, watching the youtube videos, and the replies from this thread, I decided to make an experiment. I build two alcohol stoves from soda cans, one of them with a center hole and big holes
for the jets(right in the pictures), and of them with little hole in the middle to fill the stove and little hole
s as jets(left in the pictures).
I looked for HEET, but couldnt find any, so I bought pure methanol at a hardware store, one liter for 1 dollar
And tried them out. They both produced very good fires, but the one with the little jets
would turn off if I put the cooking pot immediately on top of it. The one with the big jets did very well with the pot on top of it, didnt turn off or diminished the fire at all.
With both of them I was able to make water boil in like 10 minutes, using only 20 mililiters(c.c.) of methanol. Had to use a little grill like thing to keep the stove above the small jets one so it wouldnt turn off, it worked very well also.
They are very light, and functional, looking forward to try them in the outdoors, and see if they really work and how long does it take them to boil water in field conditions.