Got it installed in my work van. It heats up the whole van nice and toasty. Very quiet, just a little clicking from the pump. No visible smoke* and almost no smell, none inside the van at all. * I had some trouble getting the heater to work at first. It needs good 12VDC to power the igniter. In the course of figuring that out I ran the pump startup cycle too much and the consequences of that are 30 minutes of stinky white smoke clouds. But it burns off and returns to normal. Now I have kerosene in it, also works great. The manual for this thing is unbelievably bad Chinglish, which is really frustrating if you need help. The help line and the email support are totally garbage. A confusing mix of automated replies and retractions. You’re in your own to figure out how to set it up. But if you do, it’s nice