Introduction
1. Non-traditional heat exchanger is not easy to corrode and suit for constant    temperature hot water engineering of pool.
2. Model design, aesthetical and convenient for display, stably operate.
3.has the failure of electric and automatic memory function, after getting
  power; the machine can automatically operate without certain people turning
  on and of machine.
4. When the environmental temperature is lower, microcomputer atomically
   operate defrosting function.
5. it can suit for a large region of temperature, and also can produce hot
   water in the low temperature.
6. it can supply hot water for the constant temperature hot water engineering
   of pool of internal hotel, country houses, school.