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It's very nice to go c1booth but I find it better after a week or so.

It looks like you will need more surface area for 55 W, more wraps and or thicker wire, if that is 0.3 mm 3 mm ID SE reckons good up to about 28 W, if you make basically the same with twisted 0.25 mm they should be good up to 55 W or with 0.4 mm good up to about 40 W. It is subjective on what level of heat flux and you may like it much higher.

All dual 3 mm ID coils in SS316, but the metal only counts to calc res the heat flux will be the same for any wire of same size.

Thicker wire (they all link to SE page with the numbers filled in)
6 wraps 0f 0.25 <= 23 W
6 wraps of 0.3 <= 28 W
6 wraps of 0.4 <= 40 W
6 wraps of tw 0.25 <= 55 W

or more wraps
6 wraps of 0.3 <= 28 W
8 wraps of 0.3 <= 36 W
10 wraps of 0.3 <= 45 W
12 wraps of 0.3 <= 54 W

Kayfun V4