To obtain a bathroom drying and heating device of low manufacturing cost for drying clothes and a bathroom in a shorter time, heating to a predetermined temperature in a shorter time, demonstrating sufficient performance even in a roomier bathroom, and reducing the running cost by switching a heater capacity according to conditions.

Hot air units 4A and 4B are incorporated into a main body 5, the hot air units 4A and 4B are connected to respectively different 100 V commercial power circuits 10A and 10B, and individually or simultaneously operated, thereby to dry clothes or a bathroom 1 in a shorter time, to heat up to a predetermined temperature in a shorter time, and demonstrate sufficient performance in the roomier bathroom 1, so that the running cost as well as the manufacturing cost are reduced by switching the hot air units 4A and 4B according to conditions.