As the headline says, why is the Optimus 111T so popular abroad? I have sold a number of these on Norwegian sales sites, and I am constantly contacted by Asians who want to buy them. Optimus with roar burner is almost only of interest to Scandinavians. I have had many Optimus 111s, and I think the 111T works poorly. If there is a little wind, it loses a lot of effect. There are also a lot of problems with them. They are poorly assembled and leaks are common. If I'm going on a trip and have an Optimus 111 with me, it's the one with the roar burner that will be in the backpack. The only benefits I can see are lower sound, and that they can run on more than one type of fuel. That said, there are many who fire regular optimus 111 (Not B or T) with gasoline as well, even though it says kerosene only. This is a regular Optimus 111 from the Norwegian military that I have sold. It had petrol in the tank when I got it, and it burns well with petrol as you can see. But I got feedback from someone that I was crazy that burned gas on it.