Product Type Suspended Vertical Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Vertical, Heating Method Steam, Water, Output @ 2 PSI Steam 496,000 BtuH, Output @ 200 F Water 368,100 BtuH, Air Flow 8,020 cfm, Fan Phase 3, Overall Height 17 1/4 in, Overall Width 42 in, Overall Depth 42 in, Amperage 5 A, Coil Type Rectangular, Connection Size 2 1/2 in, Connection Type Threaded Male NPT, Fan Diameter 30 1/2 in, Fan Guard Type No Guard, Flow Rate 37.93 gpm, Frequency 60 Hz