| 摘要 |
The present invention relates to a condensing boiler capable of reducing manufacturing costs by simplifying an assembly structure and simplifying the number of components of a case surrounding a latent heat exchanger. To achieve the purpose, the condensing boiler includes: a burner (10); a sensible heat exchanging part (20) absorbing combustion heat from the burner (10); and a latent heat exchanging part (30) absorbing latent heat of vapor, contained in combustion gas of which heat is exchanged in the sensible heat exchanging part (20). The latent heat exchanging part (30) comprises: a latent heat exchanger (100) absorbing the latent heat by exchanging heat with heating water flowing inside; a first case (200) including a combustion gas inlet (201) receiving the combustion gas, of which heat is exchanged in the sensible heat exchanging part (20), and formed of metal materials to surround a rear part of the latent heat exchanger (100); and a second case (300) including a combustion gas outlet (351) discharging the combustion gas, of which heat is exchanged in the latent heat exchanger (100), and combined with the first case (200) by being formed of synthetic resin to surround a front part of the latent heat exchanger (100). |
