<p>A heating apparatus for cooking having a steam-generating device (30), which is easily cleaned and hygienically used and has improved steam-generating effects. The heating apparatus includes a main body (10) having a cooking chamber (11); a hot air chamber (18) formed in at least one of either side and or rear surfaces of the cooking chamber (11) to facilitate supply of hot air to the cooking chamber (11); and a steam-generating device (30) installed in the hot air chamber (18) operable to supplying steam to the cooking chamber (11).</p>
