I just fired up a brand new one at work a week ago. Just like the old ones, lever up to light, wait a minute or so then turn down to run. By far more heat than the propane ones. My own is a dual fuel, two burner, still going strong after 23 years. If you read the instructions, the likelyhood of having an accident with a naphtha stove is pretty remote. I've been using them since the late 60's. The only time I ever had a flare up is when you don't wait to the generator tube to get hot. As for the Easi lite models, they can be hit and miss. Take care of your kit and your kit takes care of you.