330 PPH to 3,440 PPH (9.5 BHP to 100 BHP) @ up to 83% efficiency
Raditional vertically configured fire-tube design with better over-all efficiency due to a bottom-fired power burner. In addition to the simplicity of the 4-piece design, the FPS includes many advantages over other vertically configured boilers, including: large water volume and steam chest that reduces cycling, and an internal feedwater pre-heater to improve overall efficiency and reduce the risk of thermal shock.