That could be a significant overload. Use a transformer or maybe
a light bulb in series. It's not unusual to see 127 volts on the
lines here. Unless there's something very special about the fan
I wouldn't bother.

wrote:
hey smart people,
i have a japanese fan that i want to install in my attic on
thermostat. its from a clean room in japan, running on 100v. ive heard
that i can do this without a transformer, "it will just run hot".
is this true? is there a chance of fire? just how hot? will it likely
smoke in a week? or a year?
thank you