Overview：

1. Recovery exhaust heat two level heat exchange, energy efficiency, saving energy and protect environment.

2. Temperature at the water entrance:20℃

3. Temperature at the water exit:60~70℃

4. Temperature at exhaust entrance:250~350℃

5. Temperature at exhaust exit:120℃

Construction：

a: Exhaust entrance  b：Exhaust exit  C1~C5: Water exit  d1~d5：Water entrance  e: Ash cleaning gate  f1~f5: Exhaust exit  g1~g5: Water exit  h1~h5: Condensation drain