Triple coil structure is adopted for the boiler with three-pass smoke and flue, compact design and energy-saving space.
锅炉采用三盘管结构，烟气三回程，设计紧凑，节能空间。
2
Triple coil structure is adopted for the boiler with three-pass smoke and flue, compact design and energy-saving space. The air pre-heater is added to enhance the heating efficiency up to 92% or more.