| 摘要 |
PROBLEM TO BE SOLVED: To provide a latent heat recovery type hot water supply bath device including a secondary heat exchanger for reheating.SOLUTION: A latent heat recovery type hot water supply bath device includes: a combustion chamber 3 having a burner 2 arranged therein; a primary heat exchanger 1 for hot water supply that exchanges heat with combustion gas of the burner 2 and comprises a can body; a primary heat exchanger 5 for reheating that comprises a coiled tube accommodated in the can body of the primary heat exchanger 1 for hot water supply and exchanges heat with hot water within the can body; and a secondary heat exchanger 9 for hot water supply for exchanging heat with combustion gas that has undergone heat exchange with the primary heat exchanger 1 for hot water supply. A secondary heat exchanger 18 for reheating that has one end connected to a bath return pipe 20 and the other end connected to the primary heat exchanger 5 for reheating is installed downstream of a combustion gas flow passage of the secondary heat exchanger 9 for hot water supply. |
