| 摘要 |
PURPOSE:To prevent the mixing among water with a high temperature in a hot water storage pan and both return water for heating and feed-water with low temperatures, which are admitted to a lower portion, by the difference of specific gravity, and to supply the water with the high temperature effectively, by a mechanism wherein a hot water supply port is mounted to an upper portion of the hot water storage pan and a water injecting port for heating, a water return port and a water supply port at the lower side. CONSTITUTION:When a hot water storage pan 1 is filled with water with a high temperature, the water with the high temperature forwarded to a floor heating coil 9 from a water injecting port 11 for heating by means of a circulation pump 13 radiates heat, becomes to a low temperature and returns to a lower portion of the hot water storage pan 1 from a water return port 8 for heating, but is not mixed with the water with the high temperature at an upper portion by the difference of specific gravity. A temperature regulator 14 controls a heater 2, starts heating when the temperature of water at the lower portion of the hot water storage pan 1 drops to lower limit temperature or less, and stops heating when the temperature of water rises to upper limit temperature. When a cock of a piping 6 for hot water supply is opened during that time, water enters from a water supply port 7 at the lower portion of the hot water storage pan 1 by the pressure of water service and pushes up the water with the high temperature at the upper portion, and hot water is supplied from a hot water supply port 4. Thus, water with a high temperature necessary for supplying hot water can continually be fed even when the load of hot water supply and heating agrees in one hot water storage pan 1 for supplying hot water for heating and hot water supply. |
