Hotels in rest if world often have a hot pot. 220v boils FAST. Then pour into pourover kettle, adjust with small amt cool watter if needed or let cool, and pour.
In us hotels have microwave . i bring a small plastic container to heat water. Pour into kettle, adjust, yada yada
If doing extended stay in US, id bring a single burner or electric kettle. For a couple days the microwave works