Maxed...
If you want a 1.5Ω dual coil... make two 3Ω coil
To get 3Ω per coil will vary depending on the gauge and type of wire you are using. Ten wraps around a 1/16 in. rod will give you about 1.8Ω to 2Ω per coil using 30ga kanthal. So about fifteen+ wraps would end up around 3Ω