Yes, it will run a 1.8ohm coil just fine. Kanthal and Nichrome coils it can support resistance ranges of 0.3ohms to 3.0ohms. That Nautilus is plenty safe on it, and will work just fine in the 7 watts (lowest the Kbox70 goes) to about 15 to 18 watts (the Nautilus begins to really shine in the 12 to 15 watt range, something the MVP2.0 couldn't reach in VW mode as it capped out at 11watts in VW mode). There are some limitations the Kbox70 has, like above 1.3ohms is the highest to reach 70watts, but beyond that I have had no issues other than the above posted asking about new resistance reading it does when the screen is active and you unscrew and screw back on a tank. It is just like the MVP2 with just a couple extra features, lower resistance support, and TC control, but a lot more power capability.