Description Overview Maximum design temperature: 650 degrees Fahrenheit Double helical coil design With Hetamizer fins for improved heat extraction from air stream Natural gas power burner with full modulation Rated at 937,000 btu/hr Heater maximum output: 749,600 btu/hr Based on a circulation of 70-gpm and a delta temperature of 50 degrees Fahrenheit Specifications The coil is designed and built according to ASME for 100 psi at 650 degrees Fahrenheit The coils are SA-106 seamless pipe All electrical on the heater to be in NEMA 4 enclosures Burner and controls to meet UL standards and NFPA-8501 standards Performance The net exhaust gas temperature will not exceed the outgoing oil temperature by more than 100 degrees Fahrenheit In the lower oil temperature ranges (350 degrees Fahrenheit), this equates to 82% net efficiency In the upper temperature ranges (550-600 degrees Fahrenheit), it is 78% Included Components 300 gallon expansion tank One 70-gpm hot oil circulation pump BMS (burner control) Oil temperature operating control Oil temperature high limit control Oil level switch with low oil level alarm Oil flow switch with low oil flow alarm Installation Unit will be complete and ready to fire after connecting to electric, fuel, and hot oil circulation piping