| 摘要 |
PURPOSE:To load the titled burner with a latent heat recovering apparatus to increase the efficiency of the burner and remove abnormal hot water supply due to after heating to improve convenience for use by providing a bypass pipe branched from a supply water pipe and connected to a supply hot water pipe through a latent heat recovering heat exchanger. CONSTITUTION:Water supplied from the supply water pipe 8 is distributed at a flow quantity distributing portion 11 into a main water pipe 14 and a bypass pipe 13 in a substantially equal quantity. Water within the main water pipe 14 is heated by the latent heat recovering heat exchanger 5, the inner drum of a combustion chamber 4 and a main heat exchanger 5, and thereafter reaches a flow quantity gathering portion 12. Water within the bypass pipe 13 is heated only by the latent heat recovering heat exchanger 6 and reaches the flow quantity gathering portion 12, and is collected together with heated water of the main water pipe 14 and hot water is supplied through a supply hot water pipe 9. By disposing the bypass pipe 13, increase in the quantity of water remaining in the water pipe can be suppressed. Further, at the time of resupplying hot water, the temperature rise due to after-heating can also be suppressed by the supply of a large quantity of low temperature water from the bypass pipe 13. |
