[Richard]

I would look carefully at the details of the wiring schematics for any cooktop I was considering. Because, a 220V version could be one of two options. One, the unit is true 220V in it’s hookup wiring. Two, it could use both legs of a 220V circuit along with the neutral to actually produce 2 110 circuits.

Since I played with a table top 115 volt. 1800 watt unit and found it to be a gracious plenty for boiling a pot of pasta water, I would go with a top that allowed me to run it on 110 to preclude the use of the generator when dry camping. But your useage may be different.