Product Type Suspended Vertical Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Vertical, Heating Method Steam, Water, Output @ 2 PSI Steam 705,000 BtuH, Output @ 200 F Water 519,400 BtuH, Air Flow 11,000 cfm, Fan Phase 3, Overall Height 24 1/4 in, Overall Width 42 in, Overall Depth 42 in, Amperage 9.8 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 53.52 gpm, Frequency 60 Hz