the gauge of the kanthal wire and how many times you wrap your wick will determine your ohm's/heat. For example, let's say if you use 30g and do 4 wraps, you'll more or less end up around .9 to 1 ohm. Now if you take some 28g (thicker wire) and do a 4 wrap build, it'll bring you to around .7-.8 ohms. So the thicker the wire, the more times you would wrap the coil to achieve similar ohms for a thinner wire.
you should experiment though, different types of builds/wraps/wick configurations, etc. Some people like vaping at super low ohms (.2-.4), some like to build in the 1 ohm range. It's all personal preference. I personally build around .8-1.0 ohms.
If you're not using a mechanical mod and you're using something like a Provari, you'll have to build your coils above 1-1.5 ohms to get a nice vape. Provari can't read coils below 0.8 ohms, and even then you probably won't be able to bring the voltage higher than 3.2v
