This paper expatiates the operating principle of solar energy hot water supplying system that combines the fix temperature supplying water and assistant calefaction.

• 介绍了解放军总后勤部某宾馆太阳能热水洗浴系统,重点阐述了太阳能定温放水与电辅助加热相结合的热水供应系统的运行原理,总结了系统设计应注意的问题。