Listings vary: some fondue pots are marketed as compatible with all stovetops including induction, others specify compatibility with gas and electric cooktops only, and at least one listing notes it is not suitable for induction stovetops.
Electric fondue makers typically list wattage and sometimes voltage. Examples in the listings include a 1000 W heating element and a model specified as 120 V, 60 Hz, 1200 W.