Product Type Suspended Vertical Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Vertical, Heating Method Steam, Water, Output @ 2 PSI Steam 333,400 BtuH, Output @ 200 F Water 242,900 BtuH, Air Flow 5.210 cfm, Fan Phase 3, Overall Height 16 3/4 in, Overall Width 37 1/2 in, Overall Depth 37 1/2 in, Amperage 3.2 A, Coil Type Rectangular, Connection Size 2 in, Connection Type Threaded Male NPT, Fan Diameter 25 1/4 in, Fan Guard Type No Guard, Flow Rate 25.03 gpm, Frequency 60 Hz