| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a liquid circulation type hot water heating machine having improved quietness.SOLUTION: A liquid circulation type hot water heating machine includes: heating means 2 for heating a heating medium; a heating secondary side supply pipe 11 which is connected to the heating means 2 and in which the heating medium heated by the heating means 2 flows toward a heating terminal 3; a heating secondary side return pipe 12 which is connected to the heating means 2 and in which the heating medium flows from the heating terminal 3 toward the heating means 2; and a heating secondary side pump 8 which is provided in the middle of the heating secondary side return pipe 12, and which conveys the heating medium. At least one side of the heating secondary side return pipe connected to the heating secondary side pump is configured by a resin pipe, so that vibration during the driving of the heating secondary side pump 8 is reduced and the noise can be suppressed.</p> |
