Looking at Kanthal A-1 Heater Coil Wire to get some Kanthal wire for my Z-Atty-Pro, and AGA T2, but I don't know what size to get. I want my ohms to be around 2.5 to 3.0, wrapped about 4 - 5 times. What size should I get? Found this: Kanthal A1 Wire resistance Chart Kanthal A1 resistance wire is for making your own atomizers. Here is some info on estimating the ohms per inch on the different types of wire. This chart is for A1 type of Kanthal wire per inch, other grades are different. 30 awg (Ω/in) 0.7 ohms 31 awg (Ω/in) 0.9 ohms 32 awg (Ω/in) 1.2 ohms 33 awg (Ω/in) 1.4 ohms 34 awg (Ω/in) 1.8 ohms 35 awg (Ω/in) 2.3 ohms 36 awg (Ω/in) 2.9 ohms The lower the ohms per inch, the more wraps you will need, this can be a trade off as the thinner wire needs less wraps but also has less surface contact to the liquid. Optimal seems to be 32 for most people.