| 摘要 |
<p>The water heater circulates water in a heat exchanger connected between the heat storage and a flame. Water is heated by intermittent heat supply. The liq. contg. envelope (15, 16) enclosing the heat source has a tubular shape so that total thermal capacity of the material and the contained liq. is heated rapidly from an initial temp. to boiling point. The liq. is recirculated between the heat storage and heat exchanger when the heat source is operating. The heating time to boiling varies between 0.5-1.5 min. pref. 1.0 min. A number of coaxial liq. holding envelopes can be provided.</p> |
