Ok. Thats a top fill CE 5 style similar to the one on the far left in my pic above. Typical starter kit. When you burn a coil dump the ejuice in the tank when you go to replace the coil because the ejuice can be tainted with the burnt taste. Make certain you "prime" the coil by taking a few draws WITHOUT power so the wick in the coil can get juice or you'll burn the next coil as well. (I would cover the air holes and draw vacuum into the coil once or twice, some people say put a drop or 2 of juice directly down the hole in the top of the coil) The first draw on a new coil of that type should be small and slow to make certain the coil has wicked with juice. If it starts to taste dry or burn STOP, take a few more draws WITHOUT power. I started with one like that.
There isn't much else I can offer about the tank. When I walked into my first vape shop with one like that the girl working the counter told me I would end up throwing it away. Kinda offended me because I really liked my vape (and had 3 or 4 of them) but she was right, I upgraded within a week, and then upgraded again and again. Good luck in your journey.