Back to vaping, I got one of these recently to go with the kayfun 4 atomiser
The kayfun has 3 different configurations so you can alter tank size
It looks complex, but isn't really.
The tall piece that looks like a chimney stack is basically an injection system for the vape juice.
The small part on the far right with 4 screws on top is the part that creates the vape.
This is done by making your own coil like this:
Then high grade cotton is threaded through the coil, and hangs down the sides into where the juice is injected.
As the juice is pulled up the cotton by the heat of the coil and then heated, it turns to vapour, and this in turn is drawn up through a central part into the mouthpiece.
The advantages of this system are that you get a much cleaner, smoother vape, it produces more vapour and a lower strength of nicotine is needed.
The disadvantage is that it is fiddly and more time consuming to set up (albeit cheaper), but I've found that after doing it a few times, it starts to become a lot quicker.
The coil is made by wrapping Kanthal wire around a suitable object, (I use a small screwdriver), and then trapping under the screws.
I still keep and use old atomisers like the protank, but I'm moving away from that system slowly but surely.
A coil will last at least 2 weeks, but the wicks need to be replaced every few days.