I have never heard of any parts available to convert a Vapalux to ethanol. It was not designed with the safety features to burn a volatile fuel like ethanol.
Ethanol???? Could be interesting. In fact very interesting. I would tell you to block off two of the air tubes and give it a try but there is the small matter that assisting or encouraging a suicide in this country is illegal so I would rather prefer you don't try please. ::Neil::
Here in Germany some guys converted Tilleys to burn meths, especially to avoid the "pregnant" vap problem. Most meths you can buy has 96% alcohol and 4% water which is enough to cause rust at the vapouriser. Therefore are for a conversion brass vaps strongly recommended. Besides this you will need to block two air tubes as Neill wrote and you will have to widen the opening of the jet. A such converted lamp will light with less pressure than normally, a few pump strokes are enough. Finally I can only repeat the warnings that were given, alcohol is much more dangerous than paraffin, it is volatile and easy flammable and the lamp isn't constructed to be filled with alcohol, there is no positive shut off valve and the non return valve of the pump isn't safe for meths either. Any modification of the lamp will be done at your own risk.
...and, must I add, alcohol is a pretty lousy fuel compared to paraffin. The consumption will increase drastically, meaning less burning hours on a tank, and it's harder to get a perfect light from it compared to when using paraffin. Otherwise it's just like previous writers has said. It's all about reducing the air at the same time as you need to increase the amount of fuel. The alcohol conversion kits for Swedish 300 CP-lanterns usually contained a jet with an orifice of atleast 0,30 mm - which is nearly twice the diameter as a paraffin ditto - and a restrictor for the air tube (for Primus. Radius used a slightly different method). I wouldn't be surprised if widening the jet to 0,30-0,35 would work with this Vapalux, and as already suggested; blocking two airtubes fully. And perhaps also a bit of the third tube. It will be easy to experiment with this since the air tubes are so easy to access. Perhaps some sort of homemade shutter on the unblocked tube to be able to tune the lantern when running? I guess you have free, or atleast very cheap, ethanol available Jiri, am I right? That must be the only reason to want to use it in a lamp. It's also quite conveniant of course to only need to handle one fuel (i.e. no secondary fuel for the preheating).
Better still don't do it. Use the fuel the lamp was designed for. Assume the manufacturer probably knew what he was doing when he gave instructions on what fuel to use. Vapalux use kero. Anything else is dangerous. ::Neil::
Hello fellows, The main reason I asked about this is "pregnant vaporizer problem". Spirit can be found here very easily. But local kerosene destroys Vapalux vaporizer in few hours. In few days, I will have a trip to UK, so I will buy paraffin there (or in France). I will also order brass vaporizer from Germany (with changeable jets). Now, I found that spirit conversion of Vapalux is not good idea. Jiri
Now that was at least a reasonable reason for asking. I was worried you might have had a curiosity bordering on death wish. Paraffin is not cheap here you might be better buying some Petrole in France. ::Neil::