Latent-heat exchanger for hot-water heating and condensing gas boiler including same

摘要

A latent-heat exchanger comprising an upper heat exchange unit in which a plurality of circulating-heating-water heat exchange units having a circulating-heating-water flow channel formed therein and a lower heat exchange unit disposed on the lower side of the upper heat exchange unit, in which a plurality of direct-water heat exchange units having a direct-water flow channel formed therein is provided.