Product Type Suspended Vertical Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Vertical, Heating Method Steam, Water, Output @ 2 PSI Steam 124,400 BtuH, Output @ 200 F Water 83,700 BtuH, Air Flow 1.790 cfm, Fan Phase 1, Overall Height 12 3/4 in, Overall Width 25 1/4 in, Overall Depth 25 1/4 in, Amperage 2.3 A, Coil Type Rectangular, Connection Size 1 1/2 in, Connection Type Threaded Male NPT, Fan Diameter 16 3/4 in, Fan Guard Type No Guard, Flow Rate 8.63 gpm, Frequency 60 Hz