To provide a towel steamer in which hot water supply for steam generation is automated, the exhaust heat of a heat source for heating is effectively utilized, and steam is effectively generated by preheating using a reserve tank.

This towel steamer has a steam generator and a towel steaming tank disposed above the steam generator. A reserve tank for hot water supply to the steam generator is equipped on an air exhaust part of a heat source for heating the steam generator. The reserve tank communicates with an evaporation tank of the steam generator via an automatic water level control valve.