| 摘要 |
<p>PURPOSE: To improve the thermal efficiency of a heater for heating oil, water, or the like, to make effectively lower the pressure to be applied to a circulation pipe for a heat-exchanging medium, to reduce the necessity for the medium to be replaced or replenished, and to have no fear that a liquid tank is dried up by heating. CONSTITUTION: Radiating pipes 3 are provided in a liquid tank 1, heating pipes 5 are provided at a place lower than that of the liquid tank 1, and the radiating pipes 3 and the heating pipes 5 are connected so as to form a hermetically sealed space, with connecting pipes 8, 8. In this way, a heater is so composed that a heat-exchanging medium 10 such as water flowing in the heating pipes 5 is heated by a heating means 6.</p> |
