Product Type Suspended Vertical Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Vertical, Heating Method Steam, Water, Output @ 2 PSI Steam 41,300 BtuH, Output @ 200 F Water 22,700 BtuH, Air Flow 595 cfm, Fan Phase 1, Overall Height 10 5/8 in, Overall Width 18 1/4 in, Overall Depth 18 1/4 in, Amperage 1.2 A, Coil Type Rectangular, Connection Size 1 1/2 in, Connection Type Threaded Male NPT, Fan Diameter 11 1/4 in, Fan Guard Type No Guard, Flow Rate 2.34 gpm, Frequency 60 Hz