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High performance waste heat recovery heat exchanger developed by the request of Japan public bathhouse with narrow installation place.


  • Install in a narrow place for compact device
  • Install ground or rooftop for pump method
  • Automated operation (pump ON when there is waste water)
  • Perfect insulation (no frozen in inter in outdoor installation)
  • Long life (white copper tube with strong durability)
  • Outstanding efficiency (special design using spiral tube) )

Installation and piping

We release only conformed products after measuring heat recovery performance penetrating warm and cool water before release of our heat exchanger(waste water heat recovery facility).

Heat recovery performance measuring facility

※ The above specification is subject to change for improvement

Standard specification

  Standard volume A B C D E F G H I J K
SM500- 10㎣/H 50A 50A 50A 50A 590 320 500 2000 650 360 790
SM250- 5㎣/H 50A 50A 50A 50A 490 250 430 2000 650 310 690

※ The above specification is subject to change for improvement

Installation drawing


  • Applicable for high temperature low waste water generating company such as sauna and industry