Description Overview Natural gas fired boiler Steam flow: 200,000 lbs per hour Outlet pressure: 650 psig Steam outlet temperature: 750°F Feedwater temperature: 227°F Specifications Excess air: 15% Heat input: 285.76 btu Release rate: 204.85 btu per hr-sq.ft Furnace liberation: 113.53 btu per hr-sq.ft Boiler gas outlet temperature: 744°F Economizer gas outlet temperature: 320°F Ambient air temperature: 80°F