Fulton Thermo Fluid Boiler, Md# FT-0600C, Nat Bd # 2399, last used to provide heat for a fryer. The 4-pass coil design heater features efficient, even heating with low thermal inertia. High efficiencies, rapid processing, and tight temperature control tolerances are standard with these heaters. This actual unit is designed for maximum temperature 650 F, maximum working pressure 150 psi and 6,000,000 Btu/hr output. Unit is completely skid mounted and includes circulating pump, valves and thermal buffer tank. NOX emissions: 2640 CFM at 550 Deg F, 2771 at 600 and 2902 at 650 all considering 60 deg F ambient temp