So I left it with him, taking a flatscreen monitor in return. I Know that many people in the USA use MDG oil-cracker hazers for their lasershows and are very satisfied with them. My experience with oil-crackers is that after some time of use a residue builds up that does not vanish anymore. In my opinion the glycol technology is better in this point. The haze stayed for hours after turning off and 2,5 liters of the haze fluid are comparable to 100 liters of fog fluid, thus lasting a lot longer.
Wonderful clouds appear in the glycol-haze.
It is much thinner and lighter than normal haze, is odor free and is hardly visible at all. The machine uses no heater or air pressure for hazing. I will barely use fog for my shows anymore. It is cheap, gives a perfect effect that is strong enough for the largest venues and leaves no residue.